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<p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT, sans-serif;line-height: 1.5em;color: white;border-radius: 10px;background: linear-gradient(to right, rgb(41, 148, 128) 20%, rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"> <jncounttag></jncounttag>写在前面 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">DeepSeek-R1 自从1-20号开源/发布十天以来，鲶鱼效应应接不暇，OpenAI o3-mini 也在 10个小时前向免费用户推送。 <section style="text-align: center;" nodeleaf=""> <img class="rich_pages wxw-img js_insertlocalimg" data-imgfileid="502125534" data-ratio="0.3175925925925926" data-s="300,640" src="/upload/2c4533d43655e2f0f07b5805ef81df94.png" data-type="png" data-w="1080" type="block"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">官方开源的版本除了满血的 671b 外，还有 1.5b，7b，8b，14b，32b，70b 六个蒸馏后的尺寸，笔者使用 Ollama 在电脑本地部署了 7b 的模型，在终端中测试了虽然回答没有满血版的那么惊艳，但凑活能用。 <section style="text-align: center;" nodeleaf=""> <img src="/upload/5b8d175eb6aa17c76f73e7cc3499c07e.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.4925925925925926" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125530"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px 10px;max-width: 100%;min-height: 1em;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;background-color: rgb(238, 253, 247);border-left: 10px solid rgb(73, 200, 149);padding: 16px;border-right: 2px solid rgb(107, 222, 176);letter-spacing: 1px;font-size: 15px;font-family: PingfangSC-LIGHT, sans-serif;box-sizing: border-box !important;overflow-wrap: break-word !important;">作为一款高阶模型开源，确实要 salute 一下。不过进一步的问题是，我们面对这样的强思维链模型，除了在官网间或 Chat 一下，如何进一步的将其变成工作或生活场景的生产力工具？本篇试图给出一种基于RAG的回答。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT, sans-serif;line-height: 1.5em;color: white;border-radius: 10px;background: linear-gradient(to right, rgb(41, 148, 128) 40%, rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"> <jncounttag></jncounttag>场景分析 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">本篇主要介绍一个本地RAG问答系统的简要示例，项目已开源在github。 <section style="text-align: center;" nodeleaf=""> <img src="/upload/a8ecc4054400e8b42ec26d529568db0d.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.5574074074074075" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125535"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">适合对数据隐私和安全性要求高的场景，如医疗机构处理病历档案、金融企业分析内部报告、法律部门管理合同文书，以及希望在确保数据不出企业的前提下实现智能问答的个人或者企业。可以在完全离线环境下独立部署和使用。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">🔒 私有数据安全：全程本地处理，敏感文档无需上传第三方服务 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">⚡ 实时响应：基于本地向量数据库实现毫秒级语义检索 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">💡 领域适配：可针对专业领域文档定制知识库 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">🌐 离线可用：无需互联网连接，保护数据隐私 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">💰 成本可控：避免云服务按次计费，长期使用成本更低 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT, sans-serif;line-height: 1.5em;color: white;border-radius: 10px;background: linear-gradient(to right, rgb(41, 148, 128) 60%, rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"> <jncounttag></jncounttag>系统架构 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">使用 Ollama 部署的 DeepSeek-r1:7b 作为推理模型，通过 Sentence Transformer (all-MiniLM-L6-v2) 将文本向量化后存储到 ChromaDB 向量数据库，使用 LangChain 的文本分割器处理 PDF 文档，最后用 Gradio 构建了一个支持文件上传和流式问答的 Web 交互界面，整个过程都在本地完成，无需连接外部服务。 <section style="text-align: center;" nodeleaf=""> <img src="/upload/44f03e8ccece2663d80886c7a325e86c.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.5574074074074075" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125531"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">📄 PDF 文档解析与向量化存储 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">🧠 基于 DeepSeek-7B 本地大模型 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">⚡ 流式回答生成 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">🔍 语义检索与上下文理解 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">🖥️ 友好的 Web 交互界面 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><img class="rich_pages wxw-img js_insertlocalimg" data-imgfileid="502125532" data-ratio="0.82265625" data-s="300,640" src="/upload/2c5fc8b8350824bb3cd4710b423ec600.png" data-type="png" data-w="1280" type="block"> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">4 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT, sans-serif;line-height: 1.5em;color: white;border-radius: 10px;background: linear-gradient(to right, rgb(41, 148, 128) 80%, rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"> <jncounttag></jncounttag>使用方法 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">4.1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 1.5em;background: linear-gradient(to right, rgb(26, 149, 165), rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">环境要求 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">Python 3.9+；内存：至少 8GB；显存：至少 4GB（推荐 8GB） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">4.2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 1.5em;background: linear-gradient(to right, rgb(26, 149, 165), rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">安装步骤 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">克隆仓库 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">git clone https://github.com/weiwill88/Local_Pdf_Chat_RAG  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">cd Local_Pdf_Chat_RAG <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">创建虚拟环境 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">python -m venv rag_env （windows 命令） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">安装依赖 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">.\rag_env\Scripts\activate <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">pip install -r requirements.txt <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">安装并启动 Ollama 服务 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">ollama pull deepseek-r1:7b <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">ollama serve &  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">启动服务 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">python rag_demo.py <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">访问浏览器打开的本地地址 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">通常是 http://localhost:17995 上传 PDF 文档（等待处理完成）、在提问区输入问题、查看实时生成的回答 <section style="text-align: center;" nodeleaf=""> <img class="rich_pages wxw-img js_insertlocalimg" data-imgfileid="502125533" data-ratio="0.5574074074074075" data-s="300,640" src="/upload/bf6ac3a0dc761fe9f0c17e46649eab12.png" data-type="png" data-w="1080" type="block"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">配置说明 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">修改 rag_demo.py 中第 147 行的模型名称可替换为其他支持的模型 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">4.3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 1.5em;background: linear-gradient(to right, rgb(26, 149, 165), rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">RAG 优化技巧 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">🛠️ 分块策略优化： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">根据文档类型调整 chunk_size（技术文档建议 800-1200，对话文本建议 400-600）使用滑动窗口重叠策略保持上下文连贯性 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">🔍 检索增强： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">结合 BM25+语义检索的混合搜索添加文档元数据过滤（如章节标题）实现结果重排序（Rerank）提升相关性 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">💬 查询优化： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">问题重写（Query Rewriting）查询扩展（Query Expansion）多轮对话上下文管理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">⚡ 性能优化： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">使用量化版嵌入模型（如 all-MiniLM-L6-v2）实现向量索引缓存机制采用批处理加速文档处理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">📊 评估体系： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">构建测试用例评估召回率监控回答准确率记录用户反馈持续优化 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">5 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT, sans-serif;line-height: 1.5em;color: white;border-radius: 10px;background: linear-gradient(to right, rgb(41, 148, 128) 100%, rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"> <jncounttag></jncounttag>四种应用场景示例 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">5.1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 1.5em;background: linear-gradient(to right, rgb(26, 149, 165), rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">律师诉状智能生成 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">痛点 案件证据材料分散在纸质卷宗/邮件/聊天记录中 人工检索匹配相似判例需遍历多个法律数据库，耗时较长  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">解决方案 构建律所或者律师个人的私有案例库：自动解析裁判文书PDF中的争议焦点、法条引用、赔偿金额等要素 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">诉状要素智能填充：输入"劳动仲裁+工伤赔偿"等标签，自动关联《工伤保险条例》第37条及近三年同类型判决赔偿金中位数 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">证据链完整性校验：根据案由自动生成必备证据清单（如劳动合同、医疗鉴定书等） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">5.2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 1.5em;background: linear-gradient(to right, rgb(26, 149, 165), rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">制造业技术文档问答 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">痛点 设备手册包含 2000+页PDF/图纸，故障代码查询耗时＞30分钟 新人无法理解"主轴轴向窜动≤0.01mm"等专业术语的实操标准  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">解决方案 多模态知识库：设备文档结构化（按故障代码/维护周期/精度标准打标签） 实操视频片段索引（关联"E02报警"对应的齿轮箱拆装演示） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">智能检索：输入"加工中心定位精度超差"，返回导轨磨损检测流程及塞尺使用规范图示  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">5.3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 1.5em;background: linear-gradient(to right, rgb(26, 149, 165), rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">贷款客户经理风控初筛 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">痛点 客户经理需要处理大量企业客户数据，例如发票数据、流水数据、上下游合同等信息，人工分析耗时长且易遗漏关键风险点。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">企业财务与经营状况信息分散且非结构化，难以快速形成清晰的风控结论。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">解决方案 信息结构化：通过大模型对发票数据、流水数据、合同条款等进行关键信息抽取（如合同金额、付款周期、供应链关联方等），并自动分类和标注（如信用风险、履约风险）。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">多模态检索：基于RAG技术，支持客户经理输入如“企业流动资金占比异常”或“上下游履约风险”问题，系统快速检索合同条款、流水异常记录，并返回具体的风险点分析和建议。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">本地部署保障数据安全：所有数据分析均在本地完成，满足企业客户对敏感信息保护的合规要求。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 1.5em;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;overflow-wrap: break-word !important;">5.4 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 1.5em;background: linear-gradient(to right, rgb(26, 149, 165), rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">零售业私有知识推荐 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">痛点 产品知识分散在 100+份 Excel 参数表/PPT培训材料中 客户咨询"敏感肌精华成分"时，新人需手动比对10+竞品手册  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="background: linear-gradient(to right,rgb(73, 200, 149),rgb(38, 198, 218));color: white;white-space: pre-wrap;border-width: 0.25em 0;display: inline;font-weight: normal;padding: 2px 4px 2px 4px;">解决方案 商品知识中枢： 自动提取产品文档中的成分表/适用肤质/禁忌搭配数据 构建成分冲突库（含酒精成分产品不可与 A 醇类产品叠加使用） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5em;box-sizing: border-box !important;overflow-wrap: break-word !important;">场景化推荐引擎： 输入"30 岁油皮夏季护肤"，推送控油套装+搭配使用顺序+关联满减方案 实时竞品对比（展示本方产品 B5 泛醇含量高于竞品 3.2%）  <section class="channels_iframe_wrp" nodeleaf=""> <mp-common-videosnap class="js_uneditable custom_select_card channels_iframe videosnap_video_iframe videosnap_video_iframe" data-pluginname="mpvideosnap" data-url="https://findermp.video.qq.com/251/20304/stodownload?encfilekey=rjD5jyTuFrIpZ2ibE8T7YmwgiahniaXswqz2TzwdRMV8uoCXYHdg02UcTAR1QicRZ3ArfWjZ0sGiclvppHnIKo35p9FNIXVyNGvnJY8Ua2uPDtV2Z3G2d9G9gibg&token=ic1n0xDG6awicyg3F1jDWcXUYZkB2by5ShCjEMiajqk3QT1XtticBZHCyrxcIATqD0cibk5pvzLcfibrG3Lk83f7VgEYyt3YTq4rDeBDu3mCdP3Mv6pJ7fORibGbnl3qc3vCO0YTTJmIDFYXYFW41XDteXUXBTJwQCnJLPm8tsGJdP6mQA&idx=1&hy=SH&m=&scene=2&uzid=2" data-headimgurl="http://wx.qlogo.cn/finderhead/Q3auHgzwzM6zZVsTeA1zmzicJIJ9AobllQDxOo7zcQuuCicKOKHDdObg/0" data-username="v2_060000231003b20faec8c5e68e1fc3d1c807ef3db07727a507a7dcba522c09cf23bc31ebbf10@finder" data-nickname="韦东东666" data-desc="无需联网！DeepSeek-R1+本地化RAG，打造私有智能文档助手 #deepseek-r1 #deepseek #rag " data-nonceid="16098083432134057862" data-width="1624" data-height="1080" data-type="video" data-id="export/UzFfAgtgekIEAQAAAAAAZHwuAcsTTwAAAAstQy6ubaLX4KHWvLEZgBPEzaM4Ix5uStWJzNPgMIukQr8V1LZHoZWW-z8GNuVk"></mp-common-videosnap> </section> <mp-style-type data-value="3"></mp-style-type>

RAGFlow+DeepSeek-R1:14b落地案例分享（足够详细）：机加工行业设备维保场景

作者：微信小助手

<section class="mp_profile_iframe_wrp" nodeleaf=""> <mp-common-profile class="js_uneditable custom_select_card mp_profile_iframe" data-pluginname="mpprofile" data-nickname="韦东东" data-alias="JIBAI_AIGC" data-from="0" data-headimg="http://mmbiz.qpic.cn/mmbiz_png/3OZeSOuRw3f0UfiboA2EooV6gxE23nUmwREHMHWnUmrtWcPHRe5CsMMQwa4c65tXKE39I0n2RKNkwgSZrICrnlg/0?wx_fmt=png" data-signature="这个公众号给大家分享我日常大模型应用开发实践经验，其中涉及Lora微调、RAG、Text2SQL、Multi-Agent等方法，25年会着重关注有行业Know-how的垂直产业场景应用开发，欢迎大家交流。" data-id="MzI1ODIxNjk1OQ==" data-is_biz_ban="0" data-service_type="1"></mp-common-profile> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">看到一个段子说，春节开工以后，中国有 5000 万家企业老板担心会错过 DeepSeek。虽然感觉有点瞎玩梗，但 DeepSeek 无疑已是当下所谓大模型企业应用落地的"房间里的大象"。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">不过想想，其实子弹也才刚刚飞了一个月而已。但 DeepSeek R1 这波多尺寸开源，属实是解锁了更多中小微企业做本地部署的可能性。而其中RAG 无疑又是一个主流且首当其冲的方法。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">过去两周以来，基本每天我都在小红书、公众号等后台平均收到十来条私信，咨询企业知识库落地的问题，有些是还在内部试错阶段碰到了问题，来交流一些工程化调优细节，当然主要是查询效果不好的问题。其中也不乏没有完整概念过来问基础问题的，我索性就在公众号后台说明了要收费接受咨询，果然加微信的就少了很多，付费的部分问的也都在点子上。（不得不说，收费确实是个很有效的筛选。） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">另外还有些是可能内部试错完需要进一步外部技术支持，来找我做具体的部署落地。但是个人精力和经验都有限，回绝了大部分。为了让大家少踩一些坑，我找了比较熟悉的制造行业案例，分享一个基于 DeepSeek-R1：14B 与 RAGFlow 框架下定制的机械加工工厂的知识库落地case，供大家参考。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">以下，enjoy: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 20%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>业务背景 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">某机械加工制造企业，专注于汽车零部件和工程机械配件的精密加工，主要产品包括液压阀体、传动轴、齿轮箱体等核心零部件。年产值约 5000 万元，员工 200 人左右。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">主要设备资产： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">数控加工设备：20 台（包括加工中心、数控车床、数控铣床等） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">普通机床：30 台（普通车床、铣床、钻床等） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">检测设备：10 台（三坐标、粗糙度仪、投影仪等） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">其他辅助设备：若干（空压机、起重设备等） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">核心痛点： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备故障处理效率低，平均每次故障处理耗时较长 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">工艺参数优化经验难以传承，产品良率提升缓慢 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备维护保养记录分散，预防性维护不足 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">新员工技能培养周期长，老师傅经验难以规模化传播 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">知识库现状： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备手册（PDF 格式）：约 50 份 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">工艺文件（Word/Excel）：约 200 份 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">维修记录（纸质/电子）：近 3 年约 1000 条 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备图纸（CAD/图片）：约 30 套 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.4 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">项目启动前核心考量 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">使用场景评估 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">主要用户群体：车间操作工、技术人员、新员工等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">日常使用频次：设备维护、工艺参数查询、技术培训等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">并发使用规模：日常并发 5-10 人 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">系统要求明确 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">答案准确性：故障诊断、参数查询等场景要求高准确性 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">响应速度：常规查询 3 秒内响应 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">知识溯源：需要显示信息来源，便于验证 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.5 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">项目实施准备 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">数据评估 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">文档格式：PDF 设备手册、Excel 记录、Word 文档等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">更新频率：工艺参数周更新、故障案例日更新 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">安全要求：内部工艺参数保密、分级访问控制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">资源规划 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">硬件环境：服务器配置、终端设备等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">网络环境：内网部署、跨区域访问等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">人员配置：技术对接人员、数据维护人员等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 40%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>技术方案概述 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">核心技术栈 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">大模型：DeepSeek-R1-14B（开源、性能优秀、工业场景理解深入） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">框架：RAGFlow（灵活、易扩展、部署简单） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">部署方式：支持本地部署或云服务器部署 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"><img src="/upload/57bd1a3f5fd8e991d3b7ed752adcb9c7.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.6416666666666667" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125638"> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: center;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">系统整体架构图 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">开发流程 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">快速验证阶段 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">采用后端优化方案直接扩展 RAGFlow 功能 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">验证分块策略、嵌入模型等核心优化点 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">确认优化效果和性能提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">功能稳定阶段 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">将验证通过的功能改造为插件式架构 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实现模块化的功能扩展 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">提升代码可维护性 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">系统扩展阶段 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">根据需求规模考虑微服务架构 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实现核心功能的独立部署 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">支持系统的横向扩展 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 60%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>调优挑战与解决方案 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">分块策略优化 <section style="text-align: center;" nodeleaf=""> <img src="/upload/0111095b3eaec32624395d8bda351e5d.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.6407407407407407" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125639"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: center;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">知识处理流程图 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">文档处理挑战： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">PDF 设备手册处理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实际案例：某数控加工中心故障诊断手册 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">问题：手册中"主轴振动故障"章节包含多张结构图和故障图，传统分块导致图片与诊断步骤分离 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">解决：识别该章节完整布局结构，将"故障现象-原因分析-结构图-处理方法"绑定为整体 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">效果：故障诊断准确率从原来的 65%提升到 85% <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">Excel 维修记录处理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实际案例：车间设备维修记录表 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">问题：一次维修涉及"故障代码、现象描述、处理措施、更换配件"等多个字段 <pre>    解决：将整行记录视为完整案例，添加字段说明，如"故障现象：主轴异响；处理措施：更换轴承"</pre> <pre> </pre> <pre>    效果：相似案例匹配率提升 40%</pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">Word 工艺文件处理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实际案例：齿轮箱体加工工艺规程 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">问题：工序说明、加工参数、质检要求分散在不同章节 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">解决：基于标题自动识别工序结构，关联工序说明与对应参数表 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">效果：工艺参数查询准确率提升至 90%以上 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">AB 测试方案： <table style="width:567px;"> <thead> <tr> <th data-colwidth="142" width="142"> <section style="text-align: center;"> 策略 </section></th> <th data-colwidth="221" width="221"> <section> 测试组 A（固定分块） </section></th> <th data-colwidth="204" width="204"> <section style="text-align: center;"> 测试组 B（动态分块） </section></th> </tr> </thead> <tbody> <tr> <td data-colwidth="142" width="142"> <section style="text-align: center;"> 分块方式 </section></td> <td data-colwidth="221" width="221"> <section style="text-align: center;"> 固定字符长度 </section></td> <td data-colwidth="204" width="204"> <section style="text-align: center;"> 基于文档结构 </section></td> </tr> <tr> <td data-colwidth="142" width="142"> <section style="text-align: center;"> 图文处理 </section></td> <td data-colwidth="221" width="221"> <section style="text-align: center;"> 分离处理 </section></td> <td data-colwidth="204" width="204"> <section style="text-align: center;"> 保持对应关系 </section></td> </tr> <tr> <td data-colwidth="142" width="142"> <section style="text-align: center;"> 表格处理 </section></td> <td data-colwidth="221" width="221"> <section style="text-align: center;"> 按行拆分 </section></td> <td data-colwidth="204" width="204"> <section style="text-align: center;"> 完整保留 </section></td> </tr> <tr> <td data-colwidth="142" width="142"> <section style="text-align: center;"> 上下文 </section></td> <td data-colwidth="221" width="221"> <section style="text-align: center;"> 固定重叠 </section></td> <td data-colwidth="204" width="204"> <section style="text-align: center;"> 动态重叠 </section></td> </tr> </tbody> </table> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">测试结果： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障类型召回率对比： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">机械故障：A 组→B 组提升明显 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">电气故障：A 组→B 组提升显著 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">参数类：A 组→B 组小幅提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">索引优化设计 <section style="text-align: center;" nodeleaf=""> <img src="/upload/06607b00a86c8c879e922d26effaa5de.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.6444444444444445" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125640"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: center;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span leaf="" style="max-width: 100%;color: rgb(62, 62, 62);line-height: 1.5;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 18px;font-family: PingFangSC-Semibold,sans-serif;">知识处理流程图 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">多级索引结构： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">基础索引层： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备编号索引：直接匹配设备信息 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障代码索引：精确匹配故障记录 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">文档 ID 索引：快速定位源文档 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">语义索引层： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备描述向量：相似设备匹配 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障现象向量：类似故障检索 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">解决方案向量：相关经验推荐 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">混合索引策略： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">精确匹配优先：设备号、故障码等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">语义匹配补充：故障描述、解决方案 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">关联信息扩展：配件、工具等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">查询优化方案 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">查询路由设计：</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">精确查询通道： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备编号直查 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障代码匹配 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">标准工艺参数查询 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">语义查询通道： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障现象描述匹配 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">解决方案相似推荐 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">经验案例关联 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">混合查询策略： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">先精确后模糊 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">结果交叉验证 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">相关性排序 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">查询增强机制：</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">专业术语处理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">术语标准化映射 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">同义词组扩展 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">车间俚语转换 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">上下文增强 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备信息补充 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">历史记录关联 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">操作环境考虑 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实际应用案例</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障诊断场景： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">问题：操作工反馈"机床主轴有异响" <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化前：简单关键词匹配，找不到类似案例 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化后： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备层：定位到具体机床型号 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障层：匹配"异响、振动、噪音"等相似描述 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">方案层：推荐相似故障的解决方案 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">效果：故障解决时间平均缩短 40% <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">工艺参数查询场景 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">问题：新员工查询"45 号钢齿轮轴粗加工参数" <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化前：需要翻阅多个文档才能找全参数 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化后： <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">材料编号直接匹配关联工艺参数表推荐类似零件的加工经验</pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">效果：参数查询时间从平均 15 分钟减少到 2 分钟 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.4 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">4. 嵌入模型选型 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">数据规模分析</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">知识库数据量： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">PDF 设备手册：50 份 × 约 5MB = 250MB <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">工艺文件：200 份 × 约 1MB = 200MB <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">维修记录：1000 条 × 约 50KB = 50MB <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备图纸：30 套 × 约 20MB = 600MB <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">总计约 1.1GB 的结构化和非结构化数据 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">数据特点： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">专业术语密集 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">图文混合 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">多格式文档 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">定期更新 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">评估维度： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">专业术语理解能力 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">上下文关联准确度 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">推理速度 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">资源占用 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">模型选型分析</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">可选模型对比 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">deepseek-1.5b：轻量但专业能力不足 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">deepseek-7b：基础场景可用，但专业能力有限 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">deepseek-14b：推荐方案，性能与资源均衡 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">deepseek-32b：高端方案，需要更强硬件支持 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">deepseek-70b：资源要求过高，不建议本地部署 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">推荐方案 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">首选：deepseek-14b <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">较好的性能/资源占用比优秀的工业领域理解能力推理速度快，适合实时交互硬件要求适中（有条件的使用Unsloth进行微调后效果更好）。</pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">可选升级：deepseek-32b <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> 更强的专业理解能力更准确的故障诊断  需要相应提升硬件配置</pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">模型对比： <table style="width:548px;"> <thead> <tr> <th data-colwidth="127" width="127"> <section style="text-align: center;"> 模型类型 </section></th> <th data-colwidth="108" width="108"> <section style="text-align: center;"> 术语识别 </section></th> <th data-colwidth="115" width="115"> <section style="text-align: center;"> 相关性 </section></th> <th data-colwidth="96" width="96"> <section style="text-align: center;"> 速度 </section></th> <th data-colwidth="102" width="102"> <section style="text-align: center;"> 成本 </section></th> </tr> </thead> <tbody> <tr> <td data-colwidth="127" width="127"> <section style="text-align: center;"> 基础模型 </section></td> <td data-colwidth="108" width="108"> <section style="text-align: center;"> 一般 </section></td> <td data-colwidth="115" width="115"> <section style="text-align: center;"> 中等 </section></td> <td data-colwidth="96" width="96"> <section style="text-align: center;"> 快 </section></td> <td data-colwidth="102" width="102"> <section style="text-align: center;"> 低 </section></td> </tr> <tr> <td data-colwidth="127" width="127"> <section style="text-align: center;"> 行业模型 </section></td> <td data-colwidth="108" width="108"> <section style="text-align: center;"> 较好 </section></td> <td data-colwidth="115" width="115"> <section style="text-align: center;"> 较高 </section></td> <td data-colwidth="96" width="96"> <section style="text-align: center;"> 中等 </section></td> <td data-colwidth="102" width="102"> <section style="text-align: center;"> 中 </section></td> </tr> <tr> <td data-colwidth="127" width="127"> <section style="text-align: center;"> 微调模型 </section></td> <td data-colwidth="108" width="108"> <section style="text-align: center;"> 优秀 </section></td> <td data-colwidth="115" width="115"> <section style="text-align: center;"> 高 </section></td> <td data-colwidth="96" width="96"> <section style="text-align: center;"> 较慢 </section></td> <td data-colwidth="102" width="102"> <section style="text-align: center;"> 高 </section></td> </tr> </tbody> </table> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">应用案例 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">专业术语理解： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">案例：车间常用术语识别 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"砂轮片起花"→"砂轮表面磨损" <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"丝杠吃刀"→"丝杠背隙过大" <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">效果：术语识别准确率提升 35% <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">上下文关联： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">案例：故障原因分析 <pre>    输入："主轴发热"</pre> <pre> </pre> <pre>   优化前：简单列举可能原因</pre> <pre> </pre> <pre>    优化后：结合转速、切削参数等上下文分析</pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">效果：原因定位准确率提升 45% <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.5 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">监控体系设计 <section style="text-align: center;" nodeleaf=""> <img class="rich_pages wxw-img js_insertlocalimg" data-imgfileid="502125641" data-ratio="0.32222222222222224" data-s="300,640" src="/upload/02d5e205835769ecee668e2ae4d97d65.png" data-type="png" data-w="1080" type="block"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: center;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span leaf="" style="max-width: 100%;color: rgb(62, 62, 62);line-height: 1.5;min-height: 1em;box-sizing: border-box !important;word-wrap: break-word !important;font-size: 18px;font-family: PingFangSC-Semibold,sans-serif;">知识处理流程图 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">三层监控框架： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">系统层： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">响应时间 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">并发处理能力 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">资源使用率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">质量层： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">答案准确率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">知识覆盖率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">用户满意度 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">业务层： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障处理时间 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备停机率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">培训效率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">关键指标看板 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">系统性能看板： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">响应时间趋势 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">资源使用率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">并发访问量 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">业务效果看板： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障处理时效 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">知识覆盖率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">用户满意度 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 80%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>投资回报分析 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4.1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实施成本明细 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">本地部署方案 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">服务器配置： <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">基础配置服务器（推荐配置）：     </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">CPU：32 核心以上     </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">内存：128GB     </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">GPU：单张 RTX 4090（24GB）或 A4000（48GB）     </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">可选配置（32b 版本）：</pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">双 GPU 并行或 A6000（48GB）  </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">存储设备（企业级 SSD）：2TB </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">终端设备： </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">车间防尘平板、工位显示屏</pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">预估总投入：15-25 万元 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">云服务方案（可选） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">云服务器租赁（按需配置） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">推荐配置： <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">14b 版本：16 核 128G + A10/A30（24GB）  </pre> <pre style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">32b 版本：32 核 256G + A40/A100（40/80GB）</pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">弹性存储空间 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">CDN 加速服务 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">预估年费： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">14b 方案：6-8 万元/年 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">32b 方案：12-15 万元/年 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4.2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">收益分析 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">直接效益 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备管理优化 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">故障处理效率提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">停机时间显著减少 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">预防性维护增强 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">生产效率提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">工艺参数优化 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">产品质量改善 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">生产节拍提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">间接效益 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">培训效率提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">新员工上手周期缩短 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">培训资源复用率提高 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">技术经验沉淀 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">关键经验数字化保存 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">技术传承体系完善 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">管理效能提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备管理数字化 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">维护计划标准化 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">技术支持效率提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4.3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">ROI 分析 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">预期收益 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">直接效益： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设备管理优化 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">生产效率提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">间接效益： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">培训效率提升 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">管理效能改善 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">投资回收 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">预期回收周期：6-12 个月 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">投资回报方式： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">减少设备停机损失 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">提升生产效率 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">降低运营成本 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">5 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 100%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>经验总结与建议 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">5.1 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">项目实施要点 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">先易后难，从核心痛点切入 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">重视数据质量和用户反馈 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">持续优化和迭代改进 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">5.2 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">注意事项 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">做好数据安全保护 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">建立长效维护机制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">加强用户培训引导 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">5.3 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">发展建议 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">建立数据更新机制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">完善反馈优化流程 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">扩展应用场景边界 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;"> <section> </section> <mp-style-type data-value="3"></mp-style-type>

将edge-tts部署到cloudflare，再也没了403错误，并搭建个自己的在线配音web

作者：微信小助手

MySQL Explain 全解析：小白也能看懂的数据库性能优化指南

作者：微信小助手

<section data-role="outer" label="edit by 135editor"> <section data-tools="135编辑器" data-id="125616" data-color="#0070c0"> <section> <section data-width="80%"> <section> <section> <section class="mp_profile_iframe_wrp"> <section data-tool="mdnice编辑器" data-website="https://www.mdnice.com" style="margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 10px;padding-right: 10px;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: linear-gradient(90deg, rgba(50, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0) 6.76%), linear-gradient(360deg, rgba(50, 0, 0, 0.05) 0%, rgba(249, 247, 252, 0) 9.46%);background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: repeat, repeat;background-repeat-y: repeat, repeat;background-size: 20px 20px, 20px 20px;width: auto;font-family: Optima, 'Microsoft YaHei', PingFangSC-regular, serif;font-size: 16px;color: rgb(0, 0, 0);line-height: 1.5em;word-spacing: 0em;letter-spacing: 0em;word-break: break-word;overflow-wrap: break-word;text-align: left;"> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">在数据库的世界里，MySQL 凭借其高性能、高可靠性和易用性，成为了众多开发者和企业的首选。而在 MySQL 的日常使用中，查询性能优化是提升应用响应速度、保障用户体验的关键环节。今天，就让我们一同走进 MySQL 的 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 命令，它就像一把神奇的钥匙，能帮我们打开数据库查询性能的大门，让我们看清查询背后的执行逻辑，找到优化的突破口。 <h2 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 18px;color: rgb(89, 89, 89);line-height: 1.8em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 10px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: solid;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 5px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(222, 198, 251);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;box-shadow: none;display: block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">一、初识 MySQL Explain</h2> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">当我们向 MySQL 数据库发出一个查询请求时，数据库内部会经历一系列复杂的操作来返回结果。<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 命令的作用，就是让我们能够看到这个查询在执行前，MySQL 是如何规划它的执行路径的，也就是所谓的执行计划。简单来说，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 就像是给数据库查询装上了一个 “透视镜”，让我们可以提前预知查询可能会遇到的问题，从而有针对性地进行优化。 <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">要使用 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code>，非常简单。只需要在你的 SQL 查询语句前加上 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 关键字，比如： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">EXPLAIN SELECT * FROM users WHERE age > 30; </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">执行这条语句后，MySQL 就不会真正去执行查询操作，而是返回关于这个查询的执行计划信息，以表格的形式呈现给我们。 <h2 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 18px;color: rgb(89, 89, 89);line-height: 1.8em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 10px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: solid;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 5px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(222, 198, 251);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;box-shadow: none;display: block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">二、解读 Explain 的核心信息</h2> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 返回的结果集包含了多个字段，每个字段都蕴含着重要的信息，下面我们就来逐一解读这些关键字段： <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">1. id</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">id</code> 是每个查询或子查询的唯一标识符。当查询比较简单时，可能只有一个 id 值；但如果查询涉及多个表的连接、子查询等情况，就会出现多个不同的 id。一般来说，id 值越大，表示该查询或子查询的执行优先级越高，先被执行。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">2. select_type</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">这个字段告诉我们查询的类型，常见的有： <ul style="list-style-type: circle;margin-top: 8px;margin-bottom: 8px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 25px;padding-right: 0px;color: rgb(0, 0, 0);" class="list-paddingleft-1"> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">SIMPLE</code>：简单的查询，不包含子查询和 UNION 操作。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">PRIMARY</code>：复杂查询中最外层的查询，如果查询中有子查询，这个值通常会出现在最外层查询中。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">SUBQUERY</code>：子查询，出现在 SELECT 或 WHERE 子句中的查询。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">DERIVED</code>：派生查询，也就是 FROM 子句中的子查询，MySQL 会将其结果作为一个临时表来处理。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">UNION</code> / <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">UNION RESULT</code>：用于 UNION 查询，<code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">UNION</code> 表示参与 UNION 的查询，<code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">UNION RESULT</code> 表示 UNION 查询的结果。 </section></li> </ul> <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">3. table</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">顾名思义，这个字段显示的是当前执行计划中正在访问的表名。如果查询涉及多个表的连接，这里就会依次列出每个表的信息。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">4. type</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">type</code> 是一个非常关键的字段，它表示 MySQL 访问表的方式，也就是连接类型。不同的连接类型对查询性能有着巨大的影响，常见的连接类型从好到差依次为： <ul style="list-style-type: circle;margin-top: 8px;margin-bottom: 8px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 25px;padding-right: 0px;color: rgb(0, 0, 0);" class="list-paddingleft-1"> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">SYSTEM</code>：系统表，非常快，因为数据量极少。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">CONST</code>：常量连接，查询条件是常量，可以直接定位到唯一一行数据。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EQ_REF</code>：使用等值连接，并且连接条件的列上有索引，通常能高效地获取数据。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">REF</code>：非等值连接，或者等值连接但索引不是唯一索引，性能次于 EQ_REF。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">RANGE</code>：范围查询，比如 <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">WHERE</code> 子句中使用了 <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">></code>、<code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;"><</code> 等条件，并且列上有索引，MySQL 会根据索引快速定位到一个数据范围。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">INDEX</code>：索引扫描，虽然使用了索引，但需要扫描整个索引树，性能不如上述几种连接类型。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">ALL</code>：全表扫描，性能最差，意味着 MySQL 要把表中的每一行数据都检查一遍，当数据量较大时，查询速度会非常慢。 </section></li> </ul> <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">5. possible_keys</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">这个字段显示的是查询中可能用到的索引。如果查询条件中涉及的列有索引，那么这些索引就会出现在这里。但需要注意的是，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">possible_keys</code> 只是表示可能用到的索引，并不一定就是实际用到的索引。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">6. key</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">key</code> 字段显示的是查询实际使用的索引。如果这个字段为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">NULL</code>，说明查询没有使用索引，这可能是导致查询性能不佳的原因之一，需要我们重点关注并考虑是否需要创建合适的索引。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">7. key_len</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">key_len</code> 表示查询实际使用的索引的长度。这个长度越短，通常意味着索引的选择性越好，查询性能也更优。通过这个字段，我们可以了解 MySQL 是如何使用索引的，以及索引的使用是否高效。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">8. ref</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">当查询使用了索引进行等值连接时，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">ref</code> 字段会显示与索引列进行等值比较的列或常量。这个字段可以帮助我们了解查询条件是如何与索引配合使用的。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">9. rows</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">rows</code> 字段估计了查询需要扫描的行数。这个估计值是 MySQL 根据统计信息和查询条件计算出来的，虽然不一定是精确值，但可以作为一个参考，帮助我们判断查询的大致性能。一般来说，扫描的行数越少，查询性能越好。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">10. filtered</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">filtered</code> 表示经过查询条件过滤后，剩余数据的百分比。它的值范围是 0 到 100，值越高，说明查询条件过滤效果越好，返回的结果集越小，查询性能也更优。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">11. Extra</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Extra</code> 字段包含了一些额外的信息，这些信息往往对查询性能有着重要的影响。常见的值有： <ul style="list-style-type: circle;margin-top: 8px;margin-bottom: 8px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 25px;padding-right: 0px;color: rgb(0, 0, 0);" class="list-paddingleft-1"> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Using index</code>：表示查询使用了覆盖索引，即查询所需的数据全部都在索引中，不需要再访问表数据，这种情况下查询性能通常较好。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Using where</code>：表示查询使用了 <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">WHERE</code> 子句进行过滤，这是正常的查询行为，但如果与其他信息结合分析，可以帮助我们了解查询的过滤效果。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Using join buffer</code>：表示查询使用了连接缓冲区，这通常出现在连接类型为 <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">REF</code> 或 <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EQ_REF</code> 的情况下，如果连接缓冲区使用较多，可能意味着连接操作比较复杂，需要关注查询性能。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Using filesort</code>：表示查询使用了文件排序，这通常出现在需要对查询结果进行排序但没有合适的索引支持排序的情况下，文件排序会消耗较多的系统资源，对查询性能影响较大，需要尽量避免。 </section></li> <li> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;text-align: left;font-weight: normal;"> <code style="background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Using temporary</code>：表示查询使用了临时表，这通常出现在复杂的查询中，如包含子查询、分组、排序等情况，使用临时表会增加查询的开销，需要关注查询性能。 </section></li> </ul> <h2 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 18px;color: rgb(89, 89, 89);line-height: 1.8em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 10px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: solid;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 5px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(222, 198, 251);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;box-shadow: none;display: block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">三、实战案例：通过 Explain 优化查询</h2> <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">案例一：全表扫描引发的性能危机</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">假设我们有一个名为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">orders</code> 的表，存储了订单信息，表中有数百万条数据。现在我们需要查询某个客户的订单数量，执行了以下 SQL 语句： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">SELECT COUNT(*) FROM orders WHERE customer_id = 12345; </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">执行 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 后，结果如下： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">+----+-------------+-------+------+---------------+------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key  | key_len | ref  | rows | Extra       | +----+-------------+-------+------+---------------+------+---------+------+------+-------------+ |  1 | SIMPLE      | orders| ALL  | NULL          | NULL | NULL    | NULL | 1000000 | Using where | +----+-------------+-------+-------+---------------+------+---------+------+------+-------------+ </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">从结果中可以看到，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">type</code> 为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">ALL</code>，说明这是一个全表扫描，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">possible_keys</code> 和 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">key</code> 都为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">NULL</code>，表示没有使用索引。<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">rows</code> 显示需要扫描 100 万行数据，这无疑会导致查询速度非常慢。 <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(145, 109, 213);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">优化方案：为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">customer_id</code> 列创建索引。 <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">CREATE INDEX idx_customer_id ON orders(customer_id); </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">创建索引后，再次执行 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code>，结果如下： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">+----+-------------+-------+------+---------------+---------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key     | key_len | ref  | rows | Extra       | +----+-------------+-------+------+---------------+---------+---------+------+------+-------------+ |  1 | SIMPLE      | orders| ref  | idx_customer_id| idx_customer_id| 4       | const| 100 | Using index | +----+-------------+-------+------+---------------+---------+---------+------+------+-------------+ </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">此时，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">type</code> 变为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">ref</code>，表示使用了索引进行等值连接，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">key</code> 显示实际使用了 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">idx_customer_id</code> 索引，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">rows</code> 显示只需要扫描 100 行数据，查询性能得到了显著提升。 <h3 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;flex-direction: unset;float: unset;height: auto;justify-content: center;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 17px;color: rgb(89, 89, 89);border-bottom-color: rgb(222, 198, 251);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 2px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">案例二：文件排序的困扰</h3> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">我们有一个名为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">employees</code> 的表，存储了员工信息，表中有几百万条数据。现在需要查询每个部门中工资最高的前 3 名员工，执行了以下 SQL 语句： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">SELECT department_id, employee_id, salary FROM employees WHERE department_id = 1 ORDER BY salary DESC LIMIT 3; </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">执行 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 后，结果如下： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">+----+-------------+-------------+------+---------------+---------+---------+------+------+-----------------------------+ | id | select_type | table       | type | possible_keys | key     | key_len | ref  | rows | Extra                       | +----+-------------+-------------+------+---------------+---------+---------+------+------+-----------------------------+ |  1 | SIMPLE      | employees   | ref  | idx_department_id | idx_department_id | 4       | const | 10000 | Using where; Using filesort | +----+-------------+-------------+------+---------------+---------+---------+------+------+-----------------------------+ </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">从结果中可以看到，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Extra</code> 字段出现了 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Using filesort</code>，说明查询使用了文件排序。虽然 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">type</code> 为 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">ref</code>，使用了 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">idx_department_id</code> 索引，但由于没有合适的索引支持排序，导致需要进行文件排序，这会消耗较多的系统资源，影响查询性能。 <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(145, 109, 213);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">优化方案：创建一个复合索引，包含 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">department_id</code> 和 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">salary</code> 列，以支持排序操作。 <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">CREATE INDEX idx_department_salary ON employees(department_id, salary DESC); </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">创建索引后，再次执行 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code>，结果如下： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg fwjhv9xmfttcqqmm52rdslianswurksshjpyh8nvib93o8hduqx6k248fjsy4mvkfko4a1ahnqr2dzckjilnflbf6x7150p2he 640?wx_fmt="svg&from=appmsg");""><code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">+----+-------------+-------------+------+---------------+---------------------+---------+------+------+-----------------------------+ | id | select_type | table       | type | possible_keys | key                 | key_len | ref  | rows | Extra                       | +----+-------------+-------------+------+---------------+---------------------+---------+------+------+-----------------------------+ |  1 | SIMPLE      | employees   | ref  | idx_department_salary | idx_department_salary | 8       | const | 3 | Using index                 | +----+-------------+-------------+------+---------------+---------------------+---------+------+------+-----------------------------+ </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">此时，<code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Extra</code> 字段变成了 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">Using index</code>，表示查询使用了覆盖索引，不需要再访问表数据，查询性能得到了极大的提升。 <h2 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span style="font-size: 18px;color: rgb(89, 89, 89);line-height: 1.8em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 10px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: solid;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 5px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(222, 198, 251);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;box-shadow: none;display: block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">四、总结</h2> <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">MySQL 的 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 命令是数据库查询性能优化的得力助手，通过解读 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 返回的执行计划信息，我们可以清晰地了解查询的执行路径、索引的使用情况以及可能存在的性能问题。在实际工作中，我们应该养成在编写 SQL 查询后，先使用 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 进行分析的习惯，及时发现并解决查询性能瓶颈，让我们的数据库应用更加高效、稳定。 <p data-tool="mdnice编辑器" style="color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">希望这篇文章能帮助你更好地理解和使用 MySQL 的 <code style="color: rgb(145, 109, 213);font-size: 14px;line-height: 1.8em;letter-spacing: 0em;background-attachment: scroll;background-clip: border-box;background-color: rgba(27, 31, 35, 0.05);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 2px;margin-right: 2px;padding-top: 2px;padding-bottom: 2px;padding-left: 4px;padding-right: 4px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 4px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;border-bottom-left-radius: 4px;overflow-wrap: break-word;font-family: 'Operator Mono', Consolas, Monaco, Menlo, monospace;word-break: break-all;">EXPLAIN</code> 命令，在数据库优化的道路上更进一步。如果你有任何疑问或实践经验，欢迎在评论区留言交流，让我们共同探索 MySQL 的奥秘！ </section> <section data-tool="mdnice编辑器" data-website="https://www.mdnice.com" style="margin: 0px;padding: 0px 10px;background: none 0% 0% / auto no-repeat scroll padding-box border-box rgba(0, 0, 0, 0);width: auto;font-family: PingFangSC-regular, sans-serif;font-size: 16px;color: rgb(0, 0, 0);line-height: 1.5em;word-spacing: 0em;letter-spacing: 0em;word-break: break-word;overflow-wrap: break-word;text-align: left;"> </section> <section data-tool="mdnice编辑器" data-website="https://www.mdnice.com" style="margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 10px;padding-right: 10px;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: linear-gradient(90deg, rgba(50, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0) 6.76%), linear-gradient(360deg, rgba(50, 0, 0, 0.05) 0%, rgba(249, 247, 252, 0) 9.46%);background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: repeat, repeat;background-repeat-y: repeat, repeat;background-size: 20px 20px, 20px 20px;width: auto;font-family: Optima, 'Microsoft YaHei', PingFangSC-regular, serif;font-size: 16px;color: rgb(0, 0, 0);line-height: 1.5em;word-spacing: 0em;letter-spacing: 0em;word-break: break-word;overflow-wrap: break-word;text-align: left;"> <h2 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: unset;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat-x: no-repeat;background-repeat-y: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"> </h2> </section> <section class="mp_profile_iframe_wrp" nodeleaf=""> <mp-common-profile class="js_uneditable custom_select_card mp_profile_iframe" data-pluginname="mpprofile" data-nickname="乐哥聊编程" data-alias="lglbc2022" data-from="0" data-headimg="http://mmbiz.qpic.cn/sz_mmbiz_png/L3TFosuayYqHqhI3kVX5yJNicB3gQYEUr07zpQuiajmfCYwlhM8lnDYeC9qqtBLiab2WmtQP0cbFqlKM6sZXp06ew/0?wx_fmt=png" data-signature="专注编程分享，聊程序人生" data-id="MzU2MzYwMDI0Ng==" data-is_biz_ban="0" data-service_type="1"></mp-common-profile> </section> </section> </section> </section> </section> </section> </section> </section> <mp-style-type data-value="3"></mp-style-type>

RAGFlow框架优化经验分享（附代码）：图文识别+动态分块、API调优+源码修改

作者：微信小助手

<section class="mp_profile_iframe_wrp" nodeleaf=""> <mp-common-profile class="js_uneditable custom_select_card mp_profile_iframe" data-pluginname="mpprofile" data-nickname="韦东东" data-alias="JIBAI_AIGC" data-from="0" data-headimg="http://mmbiz.qpic.cn/mmbiz_png/3OZeSOuRw3f0UfiboA2EooV6gxE23nUmwREHMHWnUmrtWcPHRe5CsMMQwa4c65tXKE39I0n2RKNkwgSZrICrnlg/0?wx_fmt=png" data-signature="这个公众号给大家分享我们团队日常大模型应用开发实践经验，其中涉及Lora微调、RAG、Text2SQL、Multi-Agent等方法，25年会着重关注有行业Know-how的垂直产业场景应用开发和咨询，欢迎大家交流。" data-id="MzI1ODIxNjk1OQ==" data-is_biz_ban="0" data-service_type="1"></mp-common-profile> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">过去一周，每天公众号和小红薯后台咨询RAG企业应用落地的私信又多了起来，目前已经从10+稳定在了 20+。承接了其中几个需求比较明确的项目，（目前3月底前排期已满），剩下的小部分接受了付费咨询。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">在这个过程中很高兴能了解到很多之前没涉猎过的行业和场景，其中经常被集中问到的问题大概有四个：中小企业做RAG知识库落地选择框架哪个比较好？如果选择 RAGFlow 如何进行定制化开发？如何对文档中的图片进行识别检索？如何对复杂文档进行动态分块等。 <section style="text-align: center;" nodeleaf=""> <img class="rich_pages wxw-img js_insertlocalimg" data-imgfileid="502125686" data-ratio="0.6212962962962963" data-s="300,640" src="/upload/4126427f2072f904be7c6452648e2669.png" data-type="png" data-w="1080" type="block"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">关于选择什么框架的问题，仁者见仁，需要综合对比的盆友可以参考我之前发的那篇文章<a style="" href="https://mp.weixin.qq.com/s?__biz=MzI1ODIxNjk1OQ==&mid=2649609230&idx=1&sn=6a5dbe073b88fd7ebc670bef39aff788&scene=21#wechat_redirect" textvalue="企业RAG落地避坑指南：自主开发 vs 三大框架，核心配置与选型全解析" data-itemshowtype="0" target="_blank" linktype="text" data-linktype="2">企业RAG落地避坑指南：自主开发 vs 三大框架，核心配置与选型全解析</a>。这篇以 RAGFlow 框架为例，针对上述后三个问题结合目前团队实践经验，给各位做个分享，大家辨证参考。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">毕竟，RAG并没有“一招鲜”的神奇魔法，传说那几个大厂手里掌握的RAG”核心技术“，私以为也是经过了必要且复杂的“策略优化-管道设计-训练-调优-发布”等专业开发流程，不过成熟的开源应用框架，无疑是更有想象空间的社会化大创新。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px 10px;max-width: 100%;min-height: 1em;color: rgb(43, 43, 43);text-align: justify;line-height: 28px;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(238, 253, 247);border-left: 10px solid #49c895;padding: 16px;border-right: 2px solid #6bdeb0;letter-spacing:1px;font-size:15px;font-family: PingfangSC-LIGHT,sans-serif;">注：本篇会比较偏开发导向，非技术向盆友选择性翻翻就好。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">以下，enjoy: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1 <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 25%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>优化实施路线图 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">以上篇介绍的机械加工行业的维保场景为例<a style="" href="https://mp.weixin.qq.com/s?__biz=MzI1ODIxNjk1OQ==&mid=2649609292&idx=1&sn=b0441f3eebf7bd234cf70385263e4ad5&scene=21#wechat_redirect" textvalue="RAGFlow+DeepSeek-R1:14b落地案例分享（足够详细）：机加工行业设备维保场景" data-itemshowtype="0" target="_blank" linktype="text" data-linktype="2">RAGFlow+DeepSeek-R1:14b落地案例分享（足够详细）：机加工行业设备维保场景</a>，推荐先采用官方的 Python API 进行合理的优化配置后，再修改项目源码，最后根据业务目标做必要的高级优化拓展。此处附上一张个人项目实施过程中积累的些优化要点，供各位参考： <section style="text-align: center;" nodeleaf=""> <img src="/upload/3ec7225f22a1fe695c2bebc8a1774bae.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.40925925925925927" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125684"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.1 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">阶段一：API 优化配置 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">配置不同文档类型的解析策略 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">调整检索参数优化语义搜索质量 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">定制大模型提示词以适应机械行业特点 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.2 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">阶段二：基础源码修改 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实现专业术语处理模块 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">开发查询路由机制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">增加上下文增强功能 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">1.3 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">阶段三：高级优化扩展 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实现多级索引结构 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">开发高性能缓存机制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">添加查询日志分析系统 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2 <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 50%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>6 个官方 Python API 优化全解析 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">根据 RAGFlow 官方 Python API 文档，为大家完整梳理了所有可进行 API 优化的模块和参数。这些 API 调优可以不修改源码，直接通过参数配置实现性能提升。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">建议在看完之后还是去官网看下原文，亲自动手试过一遍会有不一样的体感。原文出处： <section style="text-align: center;" nodeleaf=""> <img src="/upload/5358425bd5c2023ce2401551b7b48c31.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.5574074074074075" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125683"> </section> <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="ruby"><code>https://ragflow.io/docs/dev/python_api_reference</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.1 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">数据集管理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">创建数据集 create_dataset <pre class="code-snippet__js code-snippet code-snippet_nowrap" data-lang="javascript" style="background: rgba(0,0,0,0.03);border: 1px solid #f0f0f0;border-radius: 3px;color: #333;margin-bottom: 10px;padding: 10px;width:90%;"><code>RAGFlow.create_dataset(</code><code>    name: str,</code><code>    avatar: str = "",</code><code>    description: str = "",</code><code>    embedding_model: str = "BAAI/bge-large-zh-v1.5",</code><code>    language: str = "English",</code><code>    permission: str = "me", </code><code>    chunk_method: str = "naive",</code><code>    parser_config: DataSet.ParserConfig = None</code><code>)</code></pre> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数： <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">embedding_model: 选择合适的嵌入模型，影响检索质量</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">中文场景推荐: "BAAI/bge-large-zh-v1.5" <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">英文场景可选: "BAAI/bge-large-en-v1.5" <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">language: 选择与文档匹配的语言</li> </ul> <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">chunk_method: 关键参数，根据文档类型选择最佳分块策略</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"naive": 通用文档 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"paper": 论文/设备手册 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"book": 结构化书籍 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"table": 表格数据 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"qa": 问答格式文档 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"picture": 图片文档 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"one": 整个文档作为一个块 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">"knowledge_graph": 知识图谱 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">parser_config: 精细调整解析配置</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">chunk_token_num: 控制分块大小  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">delimiter: 自定义分隔符  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">layout_recognize: 是否启用布局识别  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">raptor: 高级解析选项 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">更新数据集 DataSet.update <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>DataSet.update(update_message : dict) </code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">embedding_model: 更换更适合的嵌入模型  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">chunk_method: 调整分块策略 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> meta_fields: 更新元数据字段 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.2 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">文件管理 (FILE MANAGEMENT) <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">上传文档 DataSet.upload_documents <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>DataSet.upload_documents(document_list : list[dict])  </code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">display_name: 文件显示名，方便检索与管理  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">blob: 文件内容 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">更新文档 Document.update <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>Document.update(update_message : dict) </code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">chunk_method: 文档分块方法 </li> </ul> <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">parser_config: 文档解析配置</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">对于图文文档，可设置: "layout_recognize": True <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">对于表格文档，可设置: "html4excel": True <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">解析文档  <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>DataSet.async_parse_documents(document_ids : list[str]) </code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">用于触发文档解析流程，支持批量处理。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.3 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">分块管理 (CHUNK MANAGEMENT) <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">添加分块 Document.add_chunk <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="php"><code>Document.add_chunk(content: str, important_keywords: list[str] = [])</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">important_keywords: 关键词标注，增强检索相关性 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">更新分块 Chunk.update <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>Chunk.update(update_message : dict) </code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">content: 更新分块内容  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">important_keywords: 更新关键词 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> available: 控制分块可用性 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">检索 RAGFlow.retrieve(关键API) <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="php"><code>RAGFlow.retrieve(</code><code>    question: str = "",</code><code>    dataset_ids: list[str] = None,</code><code>    document_ids: list[str] = None,</code><code>    page: int = 1,</code><code>    page_size: int = 30,</code><code>    similarity_threshold: float = 0.2,</code><code>    vector_similarity_weight: float = 0.3,</code><code>    top_k: int = 1024,</code><code>    rerank_id: str = None,</code><code>    keyword: bool = False,</code><code>    highlight: bool = False</code><code>)</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数 (最重要的检索相关参数): <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">similarity_threshold: 相似度阈值，影响召回范围</li> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;"> vector_similarity_weight: 向量相似度权重与关键词匹配权重的比例</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">设置为 0-1 之间，值越大向量权重越高 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">工业领域建议参考0.3-0.5，平衡专业术语与语义理解 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">top_k: 参与向量检索的 chunk 数量，影响检索范围 </li> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">rerank_id: 重排序模型 ID，提升检索精度 </li> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">keyword: 开启关键词匹配，对专业领域极其有用 </li> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">highlight: 高亮匹配内容，帮助理解匹配原因</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.4 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">聊天助手管理  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">创建聊天助手 RAGFlow.create_chat <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="php"><code>RAGFlow.create_chat(</code><code>    name: str, </code><code>    avatar: str = "", </code><code>    dataset_ids: list[str] = [], </code><code>    llm: Chat.LLM = None, </code><code>    prompt: Chat.Prompt = None</code><code>)</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">llm: LLM 模型配置</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">model_name: 模型名称  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">temperature: 温度，影响创造性  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">top_p: 词汇采样范围  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">presence_penalty: 重复惩罚  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">frequency_penalty: 频率惩罚  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">max_token: 最大输出 token 数 <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">prompt: 提示词配置</li> </ul> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">similarity_threshold: 相似度阈值  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">keywords_similarity_weight: 关键词相似度权重  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">top_n: 提供给 LLM 的 chunk 数量  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">rerank_model: 重排序模型  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">top_k: 重排序参与的候选数量 empty_response: 无匹配时的回复  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">show_quote: 是否显示引用来源  <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">prompt: 系统提示词内容 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">更新聊天助手 Chat.update <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>Chat.update(update_message : dict) </code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: 同 create_chat 中的参数 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.5 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">会话管理 (SESSION MANAGEMENT) <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">创建会话 Chat.create_session <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="php"><code>Chat.create_session(name: str = "New session")</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">提问 Session.ask <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="php"><code>Session.ask(question: str = "", stream: bool = False, **kwargs)</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">优化参数: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">stream: 流式输出，提升用户体验 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">**kwargs: 可传递给 prompt 中定义的变量 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">2.6 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">代理管理 (AGENT MANAGEMENT) <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">创建代理会话 Agent.create_session <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="bash"><code>Agent.create_session(id, rag, **kwargs)</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">代理提问 Session.ask <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="php"><code>Session.ask(question: str = "", stream: bool = False)</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">与普通会话的ask方法类似。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3 <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 75%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>调整项目源码思路参考 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.1 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">专业术语处理 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">需要在检索引擎层面添加工业领域同义词和术语映射： <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="ruby"><code># 需要修改源码的示例逻辑</code><code>class CustomTerminologyProcessor:</code><code>    def __init__(self, terminology_mapping):</code><code>        self.terminology_mapping = terminology_mapping  # 同义词映射表</code><code> </code><code>    def process_query(self, query):</code><code>        # 专业术语标准化</code><code>        # 车间俚语转换为标准术语</code><code>        processed_query = query</code><code>        for slang, standard_term in self.terminology_mapping.items():</code><code>            processed_query = processed_query.replace(slang, standard_term)</code><code>        return processed_query</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改点： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">在查询预处理阶段添加定制的术语处理模块 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">需要在 RAGFlow 的查询管道中修改源码添加此功能 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.2 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">多级索引结构实现 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">需要定制 Milvus 索引策略，实现基础索引层和语义索引层的混合索引： <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="ruby"><code># 这部分需要修改源码，以下是概念性代码</code><code>class CustomHybridIndexBuilder:</code><code>    def __init__(self, vector_db_client):</code><code>        self.client = vector_db_client</code><code> </code><code>    def create_scalar_indices(self, collection_name, fields):</code><code>        # 创建设备编号、故障代码等标量索引</code><code>        for field in fields:</code><code>            self.client.create_index(collection_name, field, "scalar")</code><code> </code><code>    def create_vector_indices(self, collection_name, fields):</code><code>        # 创建向量索引</code><code>        for field in fields:</code><code>            self.client.create_index(collection_name, field, {"index_type": "HNSW", "params": {"M": 16, "efConstruction": 200}})</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改点： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改 RAGFlow 的索引构建模块扩展 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> Milvus 客户端接口以支持多索引策略 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.3 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">查询路由设计 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">需要实现定制化的查询路由逻辑，识别不同类型的查询并路由到最合适的检索通道： <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code># 查询路由器 - 需要源码修改实现</code><code>class QueryRouter:</code><code>    def route_query(self, query_text):</code><code>        if self._is_equipment_code(query_text):</code><code>            return "exact_match", {"field": "equipment_code"}</code><code>        elif self._is_fault_code(query_text):</code><code>            return "exact_match", {"field": "fault_code"}</code><code>        elif self._is_parameter_query(query_text):</code><code>            return "parameter_lookup", {"field": "parameter_name"}</code><code>        else:</code><code>            return "semantic_search", {"model": "embedding_model"}</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改点： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">在 RAGFlow 的查询处理流程中添加查询分类和路由机制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实现针对不同查询类型的专用处理通道 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">3.4 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">上下文增强机制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">增加查询上下文增强，融入设备信息、历史记录等： <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code># 上下文增强器 - 需要修改源码实现</code><code>class ContextEnhancer:</code><code>    def enhance_query(self, query, session_history, equipment_metadata=None):</code><code>        # 添加设备上下文信息</code><code>        if equipment_metadata:</code><code>            query_context = f"设备型号: {equipment_metadata['model']}, 生产年份: {equipment_metadata['year']}\n"</code><code>            query_context += query</code><code> </code><code>        # 添加历史查询信息</code><code>        if session_history:</code><code>            relevant_history = self._extract_relevant_history(session_history, query)</code><code>            query_context = f"参考历史信息: {relevant_history}\n" + query_context</code><code> </code><code>        return query_context</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改点： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改会话管理模块，实现会话状态跟踪 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">增加设备元数据关联机制 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">在查询处理流程中加入上下文增强步骤 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4 <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 100%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>图文结合文档处理方案 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">依然是两种方案，直接使用RAGFlow API方案优势是更简单，使用现有功能，无需额外的模型调用，也能够直接显示原始图片，视觉效果更好，处理速度更快，不依赖外部 API，当然成本也无疑更低。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">但使用一个多模态模型进行预处理的方案优势也很明显，图片内容被转换为文本，便于向量化和语义搜索，也可以依托多模态模型的能力，提供更丰富的图片内容解释。 <section style="text-align: center;" nodeleaf=""> <img src="/upload/c46be8fd9c2ca955e636ab9ace25de34.jpg" class="rich_pages wxw-img js_insertlocalimg" data-ratio="1.2309058614564832" data-s="300,640" data-type="jpeg" data-w="563" type="block" data-imgfileid="502125687"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">目前实际测试下来，采用两种方案的组合，效果更加稳定。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4.1 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">使用多模态预处理生成图片描述 <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="bash"><code># 使用多模态模型生成图片描述</code><code>processor = MultimodalDocumentProcessor(api_key="YOUR_API_KEY")</code><code>enhanced_docs = processor.process_pdf("设备手册.pdf")</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4.2 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">使用 RAGFlow 处理和存储原始图片 <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code># 配置保留图片的数据集</code><code>dataset = rag_object.create_dataset(</code><code>    name="图文设备手册",</code><code>    chunk_method="paper",</code><code>    parser_config={"layout_recognize": True}</code><code>)</code><code> </code><code># 上传原始PDF文档</code><code>with open("设备手册.pdf", "rb") as f:</code><code>    dataset.upload_documents([{"display_name": "设备手册.pdf", "blob": f.read()}])</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4.3 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">创建能够提供文本描述和图片引用的助手 <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>assistant = rag_object.create_chat(</code><code>    name="图文设备专家",</code><code>    dataset_ids=[dataset.id],</code><code>    prompt=Chat.Prompt(</code><code>        prompt="""你是设备维修专家。回答时，请同时提供:</code><code>        1. 文字描述解释故障和解决方案</code><code>        2. 引用相关图片，包括图片描述</code><code>        3. 告诉用户可以参考哪些图片获取更多信息</code><code>        {knowledge}"""</code><code>    )</code><code>)</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">4.4 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">源码修改的一些建议 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">增强图片提取和处理： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改 PDF 解析器，更准确地绑定文本和相关图片 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">增加图片内容分析功能，自动标注图片类型（如"故障图"、"结构图"等） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">实现图文混合索引： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">为图片创建特殊索引，支持通过图片内容或相关文本检索图片 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">在检索结果中包含图片 URL 或直接嵌入图片 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">改进响应生成： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改聊天助手的响应生成逻辑，自动识别图片引用 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">在生成的回答中包含相关图片或图片链接 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">5 <h2 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;font-family: PingfangSC-LIGHT,sans-serif;line-height: 9px;color: white;border-radius: 10px;background:linear-gradient(to right,rgb(41, 148, 128) 100%,rgb(73, 200, 149) 10%);">   </h2> <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <jncounttag></jncounttag>动态分块策略参考 <p style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">RAGFlow的chunk_method参数是在数据集级别或文档级别设置的，不支持在单个文档内部动态切换不同的分块策略。但实际情况是，同一文档中的不同部分可能需要不同的处理方式，比如针对段落、图片、表格、图表等，使用单一的分块策略很难同时兼顾所有这些内容类型的特点。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">5.1 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">4种分块策略对比 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">源码修改方案： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">修改 RAGFlow 的文档解析器，使其能够识别文档中的不同部分并应用不同的分块策略，但这需要深入修改 RAGFlow 的核心处理逻辑，如果没有深入理解RAGFlow的全局代码，建议不要这么做。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">文档预处理方案： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">在上传到 RAGFlow 前预处理文档，将其拆分成不同类型的子文档。例如，将设备手册拆分为纯文本部分、表格部分、图文部分等然后分别上传到不同的数据集，每个数据集使用适合的分块策略。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">这个方案优点是，可以充分利用RAGFlow针对不同内容类型的专门分块策略，但问题也很明显，就是文档上下文被拆分，可能影响整体理解。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">自定义分块方案： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: left;line-height: 1.5;box-sizing: border-box !important;overflow-wrap: break-word !important;">不使用RAGFlow 的自动分块，而是手动控制分块，使用chunk_method="one"将整个文档作为一个块导入，然后使用自定义逻辑创建更细粒度的分块。这种做法无疑可以实现最精细的控制、保留文档完整性，当然缺点就是实现上会相对麻烦。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">混合模型方案： <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">创建多个使用不同分块策略的数据集，将同一文档上传到所有这些数据集，在检索时查询所有数据集并合并结果。这种方法保持文档完整性，但创建多个使用不同分块策略的副本，会造成存储冗余，检索时需要合并多个结果集。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="line-height: 25.6px;min-height: 1em;max-width: 100%;white-space: pre-wrap;color: rgb(62, 62, 62);box-sizing: border-box !important;word-wrap: break-word !important;">5.2 <h3 label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin-top: -10px;line-height: 5px;background:linear-gradient(to right,rgb(26, 149, 165) ,rgb(38, 198, 218));">   </h3> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">推荐自定义方案 <section style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> 这种方法使用RAGFlow的API但完全控制分块过程，最灵活且无需修改源码。 </section> <section style="text-align: center;" nodeleaf=""> <img src="/upload/54f88a45f8bd25540e3457016b3170ac.png" class="rich_pages wxw-img js_insertlocalimg" data-ratio="0.9055555555555556" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="502125690"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">完整保留原始文档: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">使用 chunk_method="one"将文档整体上传保留文档的完整性和上下文关系 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">自定义内容识别: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">使用 PyMuPDF 识别文档中的不同内容类型: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">文本、段落、表格内容图片及其相关描述、章节标题和结构 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">动态创建精细分块: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">文本块: 基于段落和语义分界 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">表格块: 保留表格结构和行列关系 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">图文块: 关联图片和周围的描述文本 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">添加分块类型标记: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">每个分块添加类型标识符[text], [table], [image]等 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">方便检索时区分不同类型的内容 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(137, 137, 137);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">丰富关键词提取: <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">为每个分块提取相关关键词 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">保留章节上下文信息 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <hr style="border-style: solid;border-width: 1px 0 0;border-color: rgba(0,0,0,0.1);-webkit-transform-origin: 0 0;-webkit-transform: scale(1, 0.5);transform-origin: 0 0;transform: scale(1, 0.5);"> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">回顾23年和24年国内大部分中小企业对大模型应用落地的态度，大抵是23年在观望，24年上半年利润和数字化底座都不错企业开始内部小范围试错，发现效果不达预期后，要么放弃，要么就试图寻找一些外部解决方案。但对于大部分公司而言，大模型在企业应用落地受限于比较贵的部署成本和复杂的技术门槛迟迟没有提上日程，DeepSeek的1/20开源之后，正在改变这一局面，此刻我们或许也正处于一个关键的转折点之上。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">RAG的落地优化需要群策群力先前试着建了微信群和小红书的群，活跃度比较差，本想搜个知识星球加入交流下，一时也没搜到，于是我就建了个，希望能吸引到一线的从业人员或者其他的积极行动者们充分交流。年费499，限时3天免费体验，有点小贵，新手慎入。 <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">明天起正式发帖（卖个期货），内容方向如下： <ul style="list-style-type: disc;" class="list-paddingleft-1"> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">已落地项目（目前有3个）中的技术方案及部分源码；</li> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">多个细分场景知识库应用的调研情况；</li> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">RAG相关系列论文和框架解读；</li> <li><p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">其他</li> </ul> <section style="text-align: center;" nodeleaf=""> <img src="/upload/23e872597b8a95b39cd0d2bbaea9aa66.jpg" class="rich_pages wxw-img" data-ratio="1.6092436974789917" data-s="300,640" data-type="jpeg" data-w="714" type="block" data-imgfileid="502125693"> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <section class="code-snippet__fix code-snippet__js"> <ul class="code-snippet__line-index code-snippet__js"> </ul> <pre class="code-snippet__js" data-lang="python"><code>from ragflow_sdk import RAGFlow</code><code>import fitz  # PyMuPDF</code><code>import re</code><code>import pandas as pd</code><code>import io</code><code>import logging</code><code>from typing import List, Dict, Any, Tuple</code><code> </code><code>logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')</code><code>logger = logging.getLogger(__name__)</code><code> </code><code>class DynamicChunker:</code><code>    """针对混合格式文档的自定义分块器"""</code><code> </code><code>    def __init__(self, api_key: str, base_url: str):</code><code>        self.rag_object = RAGFlow(api_key=api_key, base_url=base_url)</code><code> </code><code>    def process_document(self, pdf_path: str, dataset_name: str = None) -> str:</code><code>        """处理PDF文档并实现自定义分块"""</code><code>        # 1. 创建或获取数据集</code><code>        if dataset_name:</code><code>            datasets = self.rag_object.list_datasets(name=dataset_name)</code><code>            if datasets:</code><code>                dataset = datasets[0]</code><code>                logger.info(f"使用现有数据集: {dataset.name}, ID: {dataset.id}")</code><code>            else:</code><code>                dataset = self.rag_object.create_dataset(</code><code>                    name=dataset_name,</code><code>                    embedding_model="BAAI/bge-large-zh-v1.5",</code><code>                    language="Chinese",</code><code>                    chunk_method="one"  # 使用"one"方式，保持文档完整性</code><code>                )</code><code>                logger.info(f"创建新数据集: {dataset.name}, ID: {dataset.id}")</code><code>        else:</code><code>            dataset = self.rag_object.create_dataset(</code><code>                name="混合文档库",</code><code>                embedding_model="BAAI/bge-large-zh-v1.5",</code><code>                language="Chinese",</code><code>                chunk_method="one"</code><code>            )</code><code>            logger.info(f"创建新数据集: {dataset.name}, ID: {dataset.id}")</code><code> </code><code>        # 2. 上传文档</code><code>        with open(pdf_path, "rb") as f:</code><code>            document_blob = f.read()</code><code> </code><code>        docs = dataset.upload_documents([{</code><code>            "display_name": pdf_path.split("/")[-1],</code><code>            "blob": document_blob</code><code>        }])</code><code> </code><code>        if not docs:</code><code>            logger.error("文档上传失败")</code><code>            return None</code><code> </code><code>        doc = docs[0]</code><code>        logger.info(f"文档上传成功, ID: {doc.id}")</code><code> </code><code>        # 3. 分析文档结构并创建自定义分块</code><code>        chunks = self._create_custom_chunks(pdf_path)</code><code>        logger.info(f"创建了 {len(chunks)} 个自定义分块")</code><code> </code><code>        # 4. 手动添加分块到文档</code><code>        chunk_ids = []</code><code>        for chunk in chunks:</code><code>            content = chunk["content"]</code><code>            keywords = chunk["keywords"]</code><code>            chunk_type = chunk["type"]</code><code> </code><code>            # 添加分块类型标记以便未来检索</code><code>            content_with_marker = f"[{chunk_type}]\n{content}"</code><code> </code><code>            # 添加分块</code><code>            new_chunk = doc.add_chunk(</code><code>                content=content_with_marker,</code><code>                important_keywords=keywords</code><code>            )</code><code> </code><code>            chunk_ids.append(new_chunk.id)</code><code>            logger.info(f"添加分块: 类型={chunk_type}, ID={new_chunk.id}, 关键词数量={len(keywords)}")</code><code> </code><code>        return doc.id</code><code> </code><code>    def _create_custom_chunks(self, pdf_path: str) -> List[Dict[str, Any]]:</code><code>        """分析PDF并创建自定义分块"""</code><code>        pdf_doc = fitz.open(pdf_path)</code><code>        chunks = []</code><code> </code><code>        # 用于存储当前上下文</code><code>        current_section = ""</code><code>        current_text_chunk = ""</code><code>        current_table_data = []</code><code>        current_keywords = []</code><code> </code><code>        for page_idx, page in enumerate(pdf_doc):</code><code>            # 提取页面文本</code><code>            text = page.get_text()</code><code> </code><code>            # 检测章节标题</code><code>            section_headers = self._detect_section_headers(text)</code><code>            if section_headers:</code><code>                # 如果有积累的文本块，先保存</code><code>                if current_text_chunk:</code><code>                    chunks.append({</code><code>                        "content": current_text_chunk,</code><code>                        "keywords": list(set(current_keywords)),</code><code>                        "type": "text",</code><code>                        "section": current_section</code><code>                    })</code><code>                    current_text_chunk = ""</code><code>                    current_keywords = []</code><code> </code><code>                # 更新当前章节</code><code>                current_section = section_headers[0]</code><code>                current_keywords.append(current_section)</code><code> </code><code>            # 检测表格</code><code>            tables = self._detect_tables(page)</code><code>            if tables:</code><code>                # 如果有积累的文本块，先保存</code><code>                if current_text_chunk:</code><code>                    chunks.append({</code><code>                        "content": current_text_chunk,</code><code>                        "keywords": list(set(current_keywords)),</code><code>                        "type": "text",</code><code>                        "section": current_section</code><code>                    })</code><code>                    current_text_chunk = ""</code><code>                    current_keywords = []</code><code> </code><code>                # 处理表格</code><code>                for table in tables:</code><code>                    table_content = self._format_table(table)</code><code>                    table_keywords = self._extract_keywords_from_table(table)</code><code> </code><code>                    chunks.append({</code><code>                        "content": table_content,</code><code>                        "keywords": list(set(table_keywords + current_keywords)),</code><code>                        "type": "table",</code><code>                        "section": current_section</code><code>                    })</code><code> </code><code>            # 检测图片</code><code>            images = self._detect_images(page)</code><code>            for img_idx, img in enumerate(images):</code><code>                # 提取图片周围的文本作为上下文</code><code>                img_context = self._extract_image_context(text, img["bbox"])</code><code> </code><code>                # 如果找到图片相关文本</code><code>                if img_context:</code><code>                    # 如果有积累的文本块，先保存</code><code>                    if current_text_chunk:</code><code>                        chunks.append({</code><code>                            "content": current_text_chunk,</code><code>                            "keywords": list(set(current_keywords)),</code><code>                            "type": "text",</code><code>                            "section": current_section</code><code>                        })</code><code>                        current_text_chunk = ""</code><code>                        current_keywords = []</code><code> </code><code>                    # 创建图文块</code><code>                    image_text_content = f"图片描述: {img_context}\n图片位置: 第{page_idx+1}页"</code><code>                    image_keywords = self._extract_keywords(img_context)</code><code> </code><code>                    chunks.append({</code><code>                        "content": image_text_content,</code><code>                        "keywords": list(set(image_keywords + current_keywords)),</code><code>                        "type": "image",</code><code>                        "section": current_section</code><code>                    })</code><code> </code><code>                    # 防止重复处理同一段文本</code><code>                    text = text.replace(img_context, "", 1)</code><code> </code><code>            # 处理剩余文本</code><code>            if text.strip():</code><code>                # 按段落拆分</code><code>                paragraphs = self._split_into_paragraphs(text)</code><code> </code><code>                for para in paragraphs:</code><code>                    if len(para.strip()) < 10:  # 忽略太短的段落</code><code>                        continue</code><code> </code><code>                    # 累积文本直到达到合适的大小</code><code>                    current_text_chunk += para + "\n\n"</code><code>                    current_keywords.extend(self._extract_keywords(para))</code><code> </code><code>                    # 检查是否应该创建新的文本块</code><code>                    if len(current_text_chunk) > 1500:  # 大约300-500个词</code><code>                        chunks.append({</code><code>                            "content": current_text_chunk,</code><code>                            "keywords": list(set(current_keywords)),</code><code>                            "type": "text",</code><code>                            "section": current_section</code><code>                        })</code><code>                        current_text_chunk = ""</code><code>                        current_keywords = []</code><code> </code><code>        # 处理最后一个文本块</code><code>        if current_text_chunk:</code><code>            chunks.append({</code><code>                "content": current_text_chunk,</code><code>                "keywords": list(set(current_keywords)),</code><code>                "type": "text",</code><code>                "section": current_section</code><code>            })</code><code> </code><code>        return chunks</code><code> </code><code>    def _detect_section_headers(self, text: str) -> List[str]:</code><code>        """检测章节标题"""</code><code>        # 这是一个简化的实现，可以根据实际文档格式调整</code><code>        header_patterns = [</code><code>            r"^第[一二三四五六七八九十\d]+章\s*(.+)$",</code><code>            r"^\d+\.\d*\s+(.+)$",</code><code>            r"^[一二三四五六七八九十]+[、.．]\s*(.+)$"</code><code>        ]</code><code> </code><code>        headers = []</code><code>        for line in text.split("\n"):</code><code>            line = line.strip()</code><code>            for pattern in header_patterns:</code><code>                match = re.match(pattern, line)</code><code>                if match:</code><code>                    headers.append(line)</code><code>                    break</code><code> </code><code>        return headers</code><code> </code><code>    def _detect_tables(self, page) -> List[Any]:</code><code>        """检测页面中的表格"""</code><code>        # 这里使用简化的检测逻辑，实际应用中可能需要更复杂的表格检测算法</code><code>        # 例如，可以寻找包含多个垂直和水平线的区域</code><code>        tables = []</code><code> </code><code>        # 简单表格检测：查找水平线和垂直线的集中区域</code><code>        # 这里仅作为占位示例，实际实现会更复杂</code><code>        horizontal_lines = []</code><code>        vertical_lines = []</code><code> </code><code>        for drawing in page.get_drawings():</code><code>            for item in drawing["items"]:</code><code>                if item["type"] == "l":  # 线段</code><code>                    x0, y0, x1, y1 = item["rect"]</code><code>                    if abs(y1 - y0) < 2:  # 水平线</code><code>                        horizontal_lines.append((x0, y0, x1, y1))</code><code>                    elif abs(x1 - x0) < 2:  # 垂直线</code><code>                        vertical_lines.append((x0, y0, x1, y1))</code><code> </code><code>        # 简单的表格判定：有足够多的水平线和垂直线</code><code>        if len(horizontal_lines) >= 3 and len(vertical_lines) >= 2:</code><code>            # 找出所有线的边界，作为表格边界</code><code>            min_x = min([min(l[0], l[2]) for l in horizontal_lines + vertical_lines])</code><code>            max_x = max([max(l[0], l[2]) for l in horizontal_lines + vertical_lines])</code><code>            min_y = min([min(l[1], l[3]) for l in horizontal_lines + vertical_lines])</code><code>            max_y = max([max(l[1], l[3]) for l in horizontal_lines + vertical_lines])</code><code> </code><code>            # 提取表格区域的文本</code><code>            table_rect = fitz.Rect(min_x, min_y, max_x, max_y)</code><code>            table_text = page.get_text("text", clip=table_rect)</code><code> </code><code>            # 简化的表格结构化（实际应用中需要更复杂的逻辑）</code><code>            table_rows = table_text.split("\n")</code><code>            table = []</code><code>            for row in table_rows:</code><code>                if row.strip():</code><code>                    cells = row.split()</code><code>                    if len(cells) >= 2:  # 至少有2个单元格才视为有效行</code><code>                        table.append(cells)</code><code> </code><code>            if table:</code><code>                tables.append(table)</code><code> </code><code>        return tables</code><code> </code><code>    def _detect_images(self, page) -> List[Dict[str, Any]]:</code><code>        """检测页面中的图片"""</code><code>        images = []</code><code> </code><code>        # 获取页面上的图片对象</code><code>        img_list = page.get_images(full=True)</code><code> </code><code>        for img_idx, img_info in enumerate(img_list):</code><code>            xref = img_info[0]</code><code>            base_image = page.parent.extract_image(xref)</code><code> </code><code>            if base_image:</code><code>                # 寻找图片在页面上的位置</code><code>                img_rects = []</code><code>                for rect in page.get_image_rects(xref):</code><code>                    img_rects.append(rect)</code><code> </code><code>                if img_rects:</code><code>                    # 使用第一个找到的位置</code><code>                    bbox = img_rects[0]</code><code> </code><code>                    images.append({</code><code>                        "bbox": [bbox.x0, bbox.y0, bbox.x1, bbox.y1]</code><code>                    })</code><code> </code><code>        return images</code><code> </code><code>    def _extract_image_context(self, text: str, bbox: List[float], context_size: int = 200) -> str:</code><code>        """提取图片周围的文本作为上下文"""</code><code>        # 在文本中查找可能的图片标题，如"图1"，"Figure 1"等</code><code>        caption_patterns = [</code><code>            r"图\s*\d+[\.．:]?\s*(.+?)(?:\n|$)",</code><code>            r"Figure\s*\d+[\.:]?\s*(.+?)(?:\n|$)",</code><code>            r"图表\s*\d+[\.．:]?\s*(.+?)(?:\n|$)"</code><code>        ]</code><code> </code><code>        for pattern in caption_patterns:</code><code>            matches = re.finditer(pattern, text, re.IGNORECASE)</code><code>            for match in matches:</code><code>                return match.group(0)</code><code> </code><code>        # 如果找不到明确的图片标题，则尝试提取图片周围的文本</code><code>        # 这是一个简化实现，实际应用中可能需要更复杂的逻辑</code><code>        lines = text.split("\n")</code><code>        total_length = 0</code><code>        start_line = 0</code><code> </code><code>        # 估计图片在文本中的位置</code><code>        # 这是一个非常粗略的估计，实际应用中需要更精确的方法</code><code>        relative_position = bbox[1] / 1000  # 假设页面高度为1000</code><code>        target_position = int(len(text) * relative_position)</code><code> </code><code>        # 找到大致对应的行</code><code>        for i, line in enumerate(lines):</code><code>            total_length += len(line) + 1  # +1 for newline</code><code>            if total_length > target_position:</code><code>                start_line = max(0, i - 2)  # 从前两行开始</code><code>                break</code><code> </code><code>        # 提取上下文（当前行及其前后几行）</code><code>        context_lines = lines[max(0, start_line):min(len(lines), start_line + 5)]</code><code>        return "\n".join(line for line in context_lines if len(line.strip()) > 5)</code><code> </code><code>    def _format_table(self, table: List[List[str]]) -> str:</code><code>        """格式化表格为文本格式"""</code><code>        if not table:</code><code>            return ""</code><code> </code><code>        # 创建pandas DataFrame</code><code>        df = pd.DataFrame(table[1:], columns=table[0] if len(table) > 1 else None)</code><code> </code><code>        # 转换为字符串形式</code><code>        result = io.StringIO()</code><code>        df.to_csv(result, sep="|", index=False)</code><code>        return result.getvalue()</code><code> </code><code>    def _extract_keywords_from_table(self, table: List[List[str]]) -> List[str]:</code><code>        """从表格中提取关键词"""</code><code>        keywords = []</code><code> </code><code>        # 表头作为关键词</code><code>        if table and len(table) > 0:</code><code>            keywords.extend(table[0])</code><code> </code><code>        # 第一列可能是行标题，也加入关键词</code><code>        for row in table[1:] if len(table) > 1 else []:</code><code>            if row and len(row) > 0:</code><code>                keywords.append(row[0])</code><code> </code><code>        return keywords</code><code> </code><code>    def _split_into_paragraphs(self, text: str) -> List[str]:</code><code>        """将文本拆分为段落"""</code><code>        # 按照多个换行符拆分</code><code>        paragraphs = re.split(r"\n\s*\n", text)</code><code>        return [p.strip() for p in paragraphs if p.strip()]</code><code> </code><code>    def _extract_keywords(self, text: str) -> List[str]:</code><code>        """从文本中提取关键词"""</code><code>        # 这是一个简化的关键词提取方法</code><code>        # 实际应用中可以使用更复杂的NLP技术，如TF-IDF、TextRank等</code><code> </code><code>        # 1. 移除停用词和标点</code><code>        stop_words = {"的", "了", "和", "与", "或", "在", "是", "有", "被", "将", "把"}</code><code>        cleaned_text = re.sub(r'[^\w\s]', ' ', text)</code><code>        words = cleaned_text.split()</code><code>        filtered_words = [w for w in words if w not in stop_words and len(w) > 1]</code><code> </code><code>        # 2. 简单词频统计</code><code>        word_count = {}</code><code>        for word in filtered_words:</code><code>            if word in word_count:</code><code>                word_count[word] += 1</code><code>            else:</code><code>                word_count[word] = 1</code><code> </code><code>        # 3. 选择频率最高的几个词作为关键词</code><code>        sorted_words = sorted(word_count.items(), key=lambda x: x[1], reverse=True)</code><code>        return [word for word, count in sorted_words[:10] if count > 1]</code><code> </code><code># 使用示例</code><code>if __name__ == "__main__":</code><code>    chunker = DynamicChunker(</code><code>        api_key="YOUR_API_KEY",</code><code>        base_url="http://YOUR_BASE_URL:9380"</code><code>    )</code><code> </code><code>    doc_id = chunker.process_document("设备维修手册.pdf", "动态分块测试")</code><code>    print(f"处理完成，文档ID: {doc_id}")</code></pre> </section> <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;">（完） <p label="Converted by KNB Formatter from Jason Ng https://knb.im/mp" style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> <section style="margin: 20px;max-width: 100%;min-height: 1em;white-space: pre-wrap;color: rgb(43, 43, 43);text-align: justify;line-height: 1.5;box-sizing: border-box !important;word-wrap: break-word !important;"> </section> <mp-style-type data-value="3"></mp-style-type>

3分钟！教会你用Doris+DeepSeek搭建RAG知识库（喂饭级教程）

作者：微信小助手

<section data-tool="mdnice编辑器" data-website="https://www.mdnice.com" style="margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 10px;padding-right: 10px;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: linear-gradient(90deg, rgba(50, 0, 0, 0.03) 0%, rgba(255, 255, 255, 0) 11.49%), linear-gradient(360deg, rgba(50, 0, 0, 0.04) 0%, rgba(255, 255, 255, 0) 12.16%);background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: repeat, repeat;background-size: 20px 20px, 20px 20px;width: auto;font-family: Optima, PingFangSC-light, serif;font-size: 16px;color: rgb(0, 0, 0);line-height: 1.5em;word-spacing: 0em;letter-spacing: 0em;word-break: break-word;overflow-wrap: break-word;text-align: left;"> <blockquote style="margin-top: 20px;margin-bottom: 20px;margin-left: 0px;margin-right: 0px;padding-top: 10px;padding-bottom: 10px;padding-left: 20px;padding-right: 10px;border-top-style: solid;border-bottom-style: solid;border-left-style: solid;border-right-style: solid;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgba(64, 184, 255, 0.4);border-bottom-color: rgba(64, 184, 255, 0.4);border-left-color: rgba(64, 184, 255, 0.4);border-right-color: rgba(64, 184, 255, 0.4);border-top-left-radius: 8px;border-top-right-radius: 8px;border-bottom-right-radius: 8px;border-bottom-left-radius: 8px;background-attachment: scroll;background-clip: border-box;background-color: rgba(64, 184, 250, 0.1);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;box-shadow: rgba(0, 0, 0, 0) 0px 0px 0px 0px;display: block;overflow-x: auto;overflow-y: auto;"> <p style="text-indent: 0em;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;color: rgb(59, 59, 59);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;margin-top: 0px;margin-right: 0px;margin-bottom: 0px;margin-left: 0px;">清晨，我泡上一杯98年的咖啡，打开电脑，收到一条来自Doris用户的消息：  <p style="text-indent: 0em;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;color: rgb(59, 59, 59);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;margin-top: 0px;margin-right: 0px;margin-bottom: 0px;margin-left: 0px;">"请问有将doris数据库数据作为deepseek大模型的知识库的方法吗"  <p style="text-indent: 0em;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;color: rgb(59, 59, 59);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;margin-top: 0px;margin-right: 0px;margin-bottom: 0px;margin-left: 0px;">"好滴，安排！"  <p style="text-indent: 0em;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;color: rgb(59, 59, 59);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;margin-top: 0px;margin-right: 0px;margin-bottom: 0px;margin-left: 0px;">于是，和这位Doris用户聊了聊，发现这类需求随着DeepSeek的爆火被无限放大了，但也确实是一个‌引申的<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">机遇与挑战。  <p style="text-indent: 0em;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;color: rgb(59, 59, 59);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;margin-top: 0px;margin-right: 0px;margin-bottom: 0px;margin-left: 0px;">也罢，今天就来一探究竟，一起学习学习如何基于<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">Doris+DeepSeek打造你的专属AI助手！ </blockquote> <section style="text-align: center;" nodeleaf=""> <img src="/upload/4b8d355c96f8991678f07238350977c0.png" class="rich_pages wxw-img" data-ratio="0.6018957345971564" data-s="300,640" data-type="png" data-w="844" style="width:100%;" type="block" data-backw="549" data-backh="330" data-imgfileid="503003868"> </section> <h2 data-tool="mdnice编辑器" style="border-bottom-color: rgb(64, 184, 250);margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 4px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 20px 20px;width: 20px;height: 20px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -25px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsqnj5xwicjricawate7kicmzdria8lyice261phiavu1wfztvvwx9i9vcaew 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 20px;color: rgb(64, 184, 250);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 25px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">术语名词<span style="background-color: rgba(64, 184, 250, 0.5);align-items: unset;background-attachment: scroll;background-clip: border-box;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 20px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: right;height: 10px;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: -10px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: 200px;-webkit-box-reflect: unset;"> </h2> 在开始之前，先用大白话，介绍下几个术语名词： <section style="text-align: center;margin-bottom: 16px;" nodeleaf=""> <img src="/upload/431ea0a1801fc25d1f60817ab5dc92e4.png" class="rich_pages wxw-img" data-ratio="0.7666666666666667" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="503003880"> </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">1️⃣ AGI：通用人工智能，AI界的"<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">全能学霸"。致力于像人类一样能学数学、写诗、看病，甚至自己发明工具，目前还是科幻级存在。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">2️⃣ AIGC：人工智能生成，AI的"<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">创作工厂"。输入一句话，自动生成文章/插画/音乐。DeepSeek写情书，Midjourney画星空，都是它的拿手好戏。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">3️⃣ LLM：大语言模型，AI专属"<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">语言魔术师"。吃下全网文本，练就聊天/编程/翻译神技。DeepSeek、ChatGPT、Grok都是这类超级话痨。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">3️⃣ LangChain：AI基础平台，AI应用的"<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">乐高积木"。把聊天机器人、文档分析、LLM、Doris等功能模块化，开发者像搭积木一样快速拼出智能应用。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">4️⃣ RAG：检索增强生成，AI的"<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">外接大脑"。给模型配个随身百科，回答前先翻书查资料。比如让<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">Doris+DeepSeek用你公司的产品手册回答问题。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">5️⃣ Fine-tuning：微调，AI的"<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">私人教练"。用行业秘籍给通用模型开小灶。比如用Doris最佳实践集训练，让DeepSeek秒变Doris专家。这块需要注意：越是微调，专用性越强，通用性越弱。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">小贴士： <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">Fine-tuning 微调如同给DeepSeek做<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">定制手术——通过专业训练让模型精通某个领域，但越专精就越难跨界（比如医疗AI看不懂法律条文）。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">RAG则是给DeepSeek装智能U盘（<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">外挂）——不修改模型本身，回答时自动调取知识库内容（好比律师查法典办案），通用性无损还能随时更新知识。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">Doris+DeepSeek的结合，其实就是<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">RAG应用了。 <h2 data-tool="mdnice编辑器" style="border-bottom-color: rgb(64, 184, 250);margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 4px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 20px 20px;width: 20px;height: 20px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -25px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsqnj5xwicjricawate7kicmzdria8lyice261phiavu1wfztvvwx9i9vcaew 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 20px;color: rgb(64, 184, 250);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 25px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">一分钟定方案<span style="background-color: rgba(64, 184, 250, 0.5);align-items: unset;background-attachment: scroll;background-clip: border-box;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 20px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: right;height: 10px;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: -10px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: 200px;-webkit-box-reflect: unset;"> </h2> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">Apache Doris作为一款基于 MPP 架构的高性能、实时分析型<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">开源数据库，具备优秀的计算检索能力。既能支持<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">高并发的点查询场景，也能支持<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">高吞吐的复杂分析场景，还能进行<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">PB级日志检索，并完美融合<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">湖仓一体。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">DeepSeek则是新一代的开源大语言模型，具有强大的语义理解和推理能力，以高性价比和<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">开源著称。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">两者结合，如何解决个人和企业知识库的难题？ <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">正当我思考时，灵光一闪： <section style="text-align: center;" nodeleaf=""> <img src="/upload/d7a0a49a0c0688f817739c54bbf06687.png" class="rich_pages wxw-img" data-ratio="0.7509259259259259" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="503003869"> </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">方案主要分为<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">4个模块： <h4 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 15px 15px;width: 15px;height: 15px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: inline-block;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -2px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsg09t8gria4mgd85qcfic4lm0idrokhgjbm6cbxichpt3pgmmxdshxhqyq 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 16px;color: rgb(43, 43, 43);line-height: 1.5em;letter-spacing: 0em;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline-block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 8px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">1. 数据源端（Sources） </h4> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">接入本地知识库的文件数据，做<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">加载、清洗和分割处理。 <h4 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 15px 15px;width: 15px;height: 15px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: inline-block;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -2px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsg09t8gria4mgd85qcfic4lm0idrokhgjbm6cbxichpt3pgmmxdshxhqyq 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 16px;color: rgb(43, 43, 43);line-height: 1.5em;letter-spacing: 0em;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline-block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 8px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">2. 数据导入端（Embedding） </h4> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">Vector Embedding（向量嵌入）是将文本、图像等数据转换为<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">数值向量的机器学习技术，其核心是通过高维空间中的向量位置来捕捉数据的语义信息。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">实现向量化的就是Embedding，一段文本向量化会转化为<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">一堆浮点数，这些浮点数排列在一起就像一个数组，例如某段话向量化： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg ufvmvgcvafkp2bijpvoesbpoubffmnn4e5bcpnpzuapfr0kw7nqtmiaic9afznuicamjbgk8nsc7w3yvcymxqdugqoxgrxoax6e 640?wx_fmt="svg&from=appmsg");""> <code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">[0.30633423, 0.32576653, -1.4459475, 0.8461606, 0.015846528...] </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">这一步主要是基于这类技术将数据源进行向量化存到Doris。 <h4 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 15px 15px;width: 15px;height: 15px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: inline-block;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -2px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsg09t8gria4mgd85qcfic4lm0idrokhgjbm6cbxichpt3pgmmxdshxhqyq 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 16px;color: rgb(43, 43, 43);line-height: 1.5em;letter-spacing: 0em;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline-block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 8px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">3. 数据融合端（LLM） </h4> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">大模型的知识库存在两大局限：<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">时效性天花板（如deepseek-r1:14b的知识截至2024年7月）和个人/企业<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">知识盲区（无法获取内部资料）。 <section data-formula="\text{AI智能升级公式} = \frac{\text{DeepSeek 大模型通用能力} \times \text{Doris知识库}}{\text{传统人工培训}} " 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312T157 287Q175 282 201 278T245 269T277 256Q294 248 310 236T342 195T359 133Q359 71 321 31T198 -10H190Q138 -10 94 26L86 19L77 10Q71 4 65 -1L54 -11H46H42Q39 -11 33 -5V74V132Q33 153 35 157T45 162H54Q66 162 70 158T75 146T82 119T101 77Q136 26 198 26Q295 26 295 104Q295 133 277 151Q257 175 194 187T111 210Q75 227 54 256T33 318Q33 357 50 384T93 424T143 442T187 447H198Q238 447 268 432L283 424L292 431Q302 440 314 448H322H326Q329 448 335 442V310L329 304H301Q295 310 295 316Z" transform="translate(1934, 0)"></path> <text data-variant="normal" transform="translate(2328, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 知 </tspan> </text> <text data-variant="normal" transform="translate(3262.6, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 识 </tspan> </text> <text data-variant="normal" transform="translate(4197.1, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 库 </tspan> </text> </g> </g> <g data-mml-node="mtext" transform="translate(6079.3, -710)"> <text data-variant="normal" transform="matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 传 </tspan> </text> <text data-variant="normal" transform="translate(934.6, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 统 </tspan> </text> <text data-variant="normal" transform="translate(1869.1, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 人 </tspan> </text> <text data-variant="normal" transform="translate(2803.7, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 工 </tspan> </text> <text data-variant="normal" transform="translate(3738.2, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 培 </tspan> </text> <text data-variant="normal" transform="translate(4672.8, 0) matrix(1 0 0 -1 0 0)" font-size="934.6px" font-family="serif"> <tspan leaf=""> 训 </tspan> </text> </g> <rect width="17526" height="60" x="120" y="220"></rect> </g> </g> </g><g></g> </svg> </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">要让AI真正掌握业务精髓，还需： <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <p style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">知识注入：将个人/企业专属的《XXX》存入Doris数据库，相当于给AI装上"行业大脑" </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <p style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">智能关联：遇到复杂问题时，DeepSeek AI会自动关联多个知识库的章节内容，像资深专家般综合分析，妥妥的AI助手 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <p style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">精准应答：基于实时更新的个人/企业知识库，DeepSeek AI能给出贴合业务场景的解决方案 </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">简单而已一句话：<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">将自己的知识内容喂给LLM，让LLM结合我们给出的知识去回答问题。 <h4 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 15px 15px;width: 15px;height: 15px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: inline-block;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -2px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsg09t8gria4mgd85qcfic4lm0idrokhgjbm6cbxichpt3pgmmxdshxhqyq 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 16px;color: rgb(43, 43, 43);line-height: 1.5em;letter-spacing: 0em;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline-block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 8px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">4. 数据客户端（Processing） </h4> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">进行常规QA，<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">提问入口。 <h2 data-tool="mdnice编辑器" style="border-bottom-color: rgb(64, 184, 250);margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 4px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 20px 20px;width: 20px;height: 20px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -25px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsqnj5xwicjricawate7kicmzdria8lyice261phiavu1wfztvvwx9i9vcaew 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 20px;color: rgb(64, 184, 250);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 25px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">一分钟撕代码<span style="background-color: rgba(64, 184, 250, 0.5);align-items: unset;background-attachment: scroll;background-clip: border-box;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 20px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: right;height: 10px;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: -10px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: 200px;-webkit-box-reflect: unset;"> </h2> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">确定好方案后，即刻开撕代码。 <h4 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 15px 15px;width: 15px;height: 15px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: inline-block;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -2px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsg09t8gria4mgd85qcfic4lm0idrokhgjbm6cbxichpt3pgmmxdshxhqyq 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 16px;color: rgb(43, 43, 43);line-height: 1.5em;letter-spacing: 0em;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline-block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 8px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">环境准备 </h4> <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> Doris环境 </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">🔗 Doris部署：https://doris.apache.org/zh-CN/docs/dev/gettingStarted/quick-start <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">如果已经有Doris集群，直接用即可。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">若当前还没Doris环境，可以参考Doris官方文档，基于Docker或本地化快速部署搭建一套Doris集群： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg ufvmvgcvafkp2bijpvoesbpoubffmnn4e5bcpnpzuapfr0kw7nqtmiaic9afznuicamjbgk8nsc7w3yvcymxqdugqoxgrxoax6e 640?wx_fmt="svg&from=appmsg");""> <code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;"># Docker为例 # 1. 创建 docker-compose.yaml 文件 # 复制以下内容到 docker-compose.yaml 文件中，并将 DORIS_QUICK_START_VERSION 替换为指定的 Doris 版本，例如 2.1.8。 version: "3" services:   fe:     image: apache/doris.fe-ubuntu:${DORIS_QUICK_START_VERSION}     hostname: fe     environment:      - FE_SERVERS=fe1:127.0.0.1:9010      - FE_ID=1     network_mode: host   be:     image: apache/doris.be-ubuntu:${DORIS_QUICK_START_VERSION}     hostname: be     environment:      - FE_SERVERS=fe1:127.0.0.1:9010      - BE_ADDR=127.0.0.1:9050     depends_on:       - fe     network_mode: host # 2. 启动Doris集群 docker-compose -f ./docker-compose.yaml up -d </code></pre> <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> DeepSeeek环境 </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">本地部署的Ollama+DeepSeek，网上教程非常多，本文还是就不单独介绍了。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">简而言之，参考一臻整理的如下简图（两步完成不带WebUI）： <section style="text-align: center;" nodeleaf=""> <img src="/upload/051fe237c5c66cd08288b99bc6370738.png" class="rich_pages wxw-img" data-ratio="0.5935185185185186" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="503003870"> </section> <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> Python环境 </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">本次使用的Python版本是<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">3.8.17，相关的包都可以畅通无阻的install（建议用<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">conda管理py环境）： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg ufvmvgcvafkp2bijpvoesbpoubffmnn4e5bcpnpzuapfr0kw7nqtmiaic9afznuicamjbgk8nsc7w3yvcymxqdugqoxgrxoax6e 640?wx_fmt="svg&from=appmsg");""> <code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">pip install langchain pip install langchain-community pip install -qU langchain-community pip install  sqlalchemy pip install --upgrade --quiet  pymysql pip install markdown </code></pre> <h4 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 15px 15px;width: 15px;height: 15px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: inline-block;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -2px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsg09t8gria4mgd85qcfic4lm0idrokhgjbm6cbxichpt3pgmmxdshxhqyq 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 16px;color: rgb(43, 43, 43);line-height: 1.5em;letter-spacing: 0em;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline-block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 8px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">代码实现 </h4> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">经过一臻<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">七七四十九秒的编写调试，完整代码如下： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg ufvmvgcvafkp2bijpvoesbpoubffmnn4e5bcpnpzuapfr0kw7nqtmiaic9afznuicamjbgk8nsc7w3yvcymxqdugqoxgrxoax6e 640?wx_fmt="svg&from=appmsg");""> <code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">from dataclasses import dataclass from contextlib import contextmanager from langchain_community.llms.ollama import Ollama from langchain_community.embeddings.ollama import OllamaEmbeddings from langchain_community.document_loaders import DirectoryLoader, UnstructuredMarkdownLoader from langchain_core.output_parsers import StrOutputParser from langchain_core.prompts import ChatPromptTemplate from langchain_core.runnables import RunnablePassthrough, RunnableLambda from langchain_text_splitters import TokenTextSplitter from langchain_community.vectorstores.apache_doris import ApacheDorisSettings, ApacheDoris from pymysql import connect from pymysql.connections import Connection @dataclass class DorisConfig:     """Apache Doris configuration"""     host: str     port: int     username: str     password: str     database: str     table: str     def to_settings(self) -> ApacheDorisSettings:         """Convert config to ApacheDorisSettings"""         settings = ApacheDorisSettings()         settings.host = self.host         settings.port = self.port         settings.username = self.username         settings.password = self.password         settings.database = self.database         settings.table = self.table         return settings class DocumentLoader:     """Document loading and processing"""     def __init__(self, docs_dir: str, chunk_size: int = 400, chunk_overlap: int = 50):         self.docs_dir = docs_dir         self.chunk_size = chunk_size         self.chunk_overlap = chunk_overlap     def load_and_split(self):         """Load and split documents into chunks"""         loader = DirectoryLoader(             self.docs_dir,             glob="**/*.md",             loader_cls=UnstructuredMarkdownLoader         )         docs = loader.load()         splitter = TokenTextSplitter(             chunk_size=self.chunk_size,             chunk_overlap=self.chunk_overlap         )         return splitter.split_documents(docs) class Doris:     """Apache Doris database operations"""     def __init__(self, config: DorisConfig):         self.config = config     @contextmanager     def get_connection(self) -> Connection:         """Get database connection with context management"""         conn = connect(             host=self.config.host,             port=self.config.port,             user=self.config.username,             password=self.config.password,             database=self.config.database         )         try:             yield conn         finally:             conn.close()     def get_context(self) -> str:         """Get context from database"""         with self.get_connection() as conn:             cursor = conn.cursor()             cursor.execute(f"SELECT document FROM `{self.config.table}`")             rows = cursor.fetchall()             return"\n".join(row[0] for row in rows) class QASystem:     """Question Answering System"""     def __init__(             self,             config: DorisConfig,             docs_dir: str = "./docs",             embedding_model: str = "bge-m3",             llm_model: str = "deepseek-r1"     ):         self.config = config         self.docs_dir = docs_dir         self.embedding_model = embedding_model         self.llm_model = llm_model         self.db = Doris(config)     def initialize_vectorstore(self):         """Initialize vector store with documents"""         loader = DocumentLoader(self.docs_dir)         docs = loader.load_and_split()         embeddings = OllamaEmbeddings(model=self.embedding_model)         ApacheDoris.from_documents(             docs,             embeddings,             config=self.config.to_settings()         )     def get_qa_chain(self, context: str):         """Create QA chain"""         template = """         Answer the question based only on the following context:{context}         Question: 请严格结合{context}的内容回答{question}的问题，别发散，说人话。         """         prompt = ChatPromptTemplate.from_template(template)         llm = Ollama(model=self.llm_model)         return (                 {                     "context": RunnableLambda(lambda d: context),                     "question": RunnablePassthrough()                 }                 | prompt                 | llm                 | StrOutputParser()         )     def query(self, question: str) -> str:         """Query the QA system"""         context = self.db.get_context()         qa_chain = self.get_qa_chain(context)         return qa_chain.invoke(question) def main():     # Configuration     config = DorisConfig(         host="{按需补齐}",         port=9030,         username="{按需补齐}",         password="{按需补齐}",         database="{按需补齐}",         table="{按需补齐，默认langchain}"     )     # Initialize QA system     qa_system = QASystem(config)     # Initialize vector store (only needed once)     qa_system.initialize_vectorstore()     # Query example     question = "请介绍下Apache Doris,以及当前最新的Release版本是多少"     response = qa_system.query(question)     print("----- Response -----")     print(response) if __name__ == "__main__":     main() </code></pre> <h4 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 15px 15px;width: 15px;height: 15px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: inline-block;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -2px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsg09t8gria4mgd85qcfic4lm0idrokhgjbm6cbxichpt3pgmmxdshxhqyq 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 16px;color: rgb(43, 43, 43);line-height: 1.5em;letter-spacing: 0em;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: inline-block;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 8px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">代码解析 </h4> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">代码经过精简，很多block没有进行过多地细化深入。主要是为了让大家能够快速熟悉Doris+DeepSeek的完整流程，后续可以结合自己需求，按模块进行调整应用。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">代码主流程如下： <section style="text-align: center;" nodeleaf=""> <img src="/upload/a0641287cca0deeee1a3722aa60e45da.png" class="rich_pages wxw-img" data-ratio="1.1675925925925925" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="503003871"> </section> 从里到外，每一层的解析： <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> DorisConfig </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">主要功能分为2个方面： <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">1️⃣ 配置集中管理 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">封装 Doris 数据库连接所需的 6 个关键参数。使用类型注解确保配置数据的正确性。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">2️⃣ 配置格式转换 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">to_settings() 方法将配置转换为 LangChain 官方库 ApacheDoris 模块需要的参数格式，方便与 LangChain 的 Apache Doris进行集成。 <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> Doris </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">主要职责分为三个层次： <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">1️⃣ 连接管理 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 基于 DorisConfig 配置创建数据库连接 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 使用 @contextmanager 实现安全的连接上下文管理 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 自动处理连接异常和资源释放 </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">2️⃣ 数据操作 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 执行指定 SQL 查询（当前实现为获取全部 document 字段，即直接获取全部内容喂给DeepSeek；暂时没用到<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">embedding值，后续可以结合起来用，效果更佳） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 将查询结果拼接为字符串返回 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 为上层 QASystem 提供原始数据输入 </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">3️⃣ 资源隔离 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 封装所有数据库相关操作细节 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 隔离 SQL 语法与业务逻辑 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 为后续扩展更多数据库操作提供统一入口 </section> <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> DocumentLoader </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">主要实现三个关键功能： <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">1️⃣ 文件加载 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 自动扫描指定目录下的 Markdown 文件（**/*.md） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 使用 UnstructuredMarkdownLoader 解析文件内容 </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">2️⃣ 文本分割 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 基于 token 数量进行智能分割 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 通过重叠 token 保持上下文连贯性 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 输出格式化的 Document 对象列表 </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">3️⃣ 参数化配置 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 允许灵活调整块大小（默认 400 tokens） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 可设置块间重叠量（默认 50 tokens） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 为后续向量化存储提供标准化输入 </section> <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> QASystem </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">主要承担三个层面的职责： <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">1️⃣ 系统整合 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 协调 Doris 数据库操作 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 管理文档向量化存储 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 桥接大语言模型（<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">deepseek-r1） </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">2️⃣ 处理流程 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 知识库初始化（文档向量化存储到Doris） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 问答处理链构建（LangChain 流水线） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 用户查询执行（端到端响应生成） </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">3️⃣ 参数管理 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 集中管理嵌入模型（embedding_model本次选用的是<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">bge-m3）和 LLM 选择（llm本次选用的是<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">deepseek-r1） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 控制知识库文件存储路径 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 维护数据库连接配置 </section> <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> Client </h5> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">主要作为入口交互： <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">1️⃣ 系统配置 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 定义 Doris 数据库连接参数 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 指定文档存储表名（langchain） </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 设置认证信息（用户名/密码） </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">2️⃣ 初始化流程 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 创建问答系统实例 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 加载文档生成向量数据库（仅首次需要） </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">3️⃣ 演示流程 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 预定义测试问题 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 执行端到端问答 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 格式化输出结果 </section> <h5 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> 其它说明 </h5> <h6 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> 1. 测试文件 </h6> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">主要导入了3个md文件，分别是： <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">🔗 Doris README：https://github.com/apache/doris/edit/master/README.md <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">🔗 Doris简介文档：https://github.com/apache/doris-website/blob/master/i18n/zh-CN/docusaurus-plugin-content-docs/current/gettingStarted/what-is-apache-doris.md <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">🔗 Doris版本最新发布文档：https://github.com/apache/doris-website/blob/master/i18n/zh-CN/docusaurus-plugin-content-docs/current/releasenotes/all-release.md <h6 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> 2. Doris表 </h6> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">在进行ApacheDoris.from_documents时，Doris会自动建如下表： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg ufvmvgcvafkp2bijpvoesbpoubffmnn4e5bcpnpzuapfr0kw7nqtmiaic9afznuicamjbgk8nsc7w3yvcymxqdugqoxgrxoax6e 640?wx_fmt="svg&from=appmsg");""> <code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">CREATE TABLE`langchain` ( `id`varchar(50) NULL, `document`textNULL, `embedding`array<float> NULL, `metadata`textNULL ) ENGINE=OLAP UNIQUEKEY(`id`) </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">主要存储文档切割后的原文、embedding值和文件元数据： <section style="text-align: center;" nodeleaf=""> <img src="/upload/bf7d53e782edeba9759f863b9a1b7bf4.png" class="rich_pages wxw-img" data-ratio="0.4666666666666667" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="503003872"> </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">由于Doris当前还没支持vector类型，所以还没法直接转为Retriever检索器，否则会报如下异常： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg ufvmvgcvafkp2bijpvoesbpoubffmnn4e5bcpnpzuapfr0kw7nqtmiaic9afznuicamjbgk8nsc7w3yvcymxqdugqoxgrxoax6e 640?wx_fmt="svg&from=appmsg");""> <code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">Syntax error in line 4:\n...    cosine_distance(array<float> </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">因此这块的流程改为将向量化后的Doris数据，直接读取（可以结合Doris<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">倒排索引加速）外挂为上下文context。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">预计7月将完成Doris向量化能力大统一，敬请期待！ <h6 data-tool="mdnice编辑器" style="margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;display: block;"> 3. 提示词 </h6> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">构建QA chain时，prompt提示词这块值得一提。大家结合应用时可以个性化调整： <pre data-tool="mdnice编辑器" style="border-radius: 5px;box-shadow: rgba(0, 0, 0, 0.55) 0px 2px 10px;text-align: left;margin-top: 10px;margin-bottom: 10px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;"><span data-cacheurl="" data-remoteid="" style="display: block;background: none;height: 30px;width: 100%;background-size: 40px;background-repeat: no-repeat;background-color: #282c34;margin-bottom: -7px;border-radius: 5px;background-position: 10px 10px;background-image: url(" https: mmbiz.qpic.cn mmbiz_svg ufvmvgcvafkp2bijpvoesbpoubffmnn4e5bcpnpzuapfr0kw7nqtmiaic9afznuicamjbgk8nsc7w3yvcymxqdugqoxgrxoax6e 640?wx_fmt="svg&from=appmsg");""> <code style="overflow-x: auto;padding: 16px;color: #abb2bf;padding-top: 15px;background: #282c34;border-radius: 5px;display: -webkit-box;font-family: Consolas, Monaco, Menlo, monospace;font-size: 12px;">template = """         Answer the question based only on the following context:{context}         Question: 请严格结合{context}的内容回答{question}的问题，别发散，说人话。         """ prompt = ChatPromptTemplate.from_template(template) </code></pre> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">在langchain中，ChatPromptTemplate是一个定义提问模版的方法，主要有两个功能：from_messages 和 from_template。 <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <p style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">1. from_messages：把系统指令、用户提问等不同角色的对话片段，像搭积木一样组合，3秒构建多轮对话模板。 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <p style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;"><strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">2. from_template：一键复制现有模板，好比PS图层编辑般自由修改，快速生成变体对话方案。本次选用的是from_template。 </section> <h2 data-tool="mdnice编辑器" style="border-bottom-color: rgb(64, 184, 250);margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 4px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 20px 20px;width: 20px;height: 20px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -25px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsqnj5xwicjricawate7kicmzdria8lyice261phiavu1wfztvvwx9i9vcaew 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 20px;color: rgb(64, 184, 250);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 25px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">一分钟看结果<span style="background-color: rgba(64, 184, 250, 0.5);align-items: unset;background-attachment: scroll;background-clip: border-box;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 20px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: right;height: 10px;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: -10px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: 200px;-webkit-box-reflect: unset;"> </h2> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">代码编写调试完后，来对比下结果。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">首先，本地部署的是ollama+deepseek r1:14b，直接问相同的问题，回答： <section style="text-align: center;" nodeleaf=""> <img src="/upload/02d22a4d6fa749914b95cd146d089b20.png" class="rich_pages wxw-img" data-ratio="0.8898148148148148" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="503003873"> </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">结果有几个明显的错误点，比如Doris是2017年正式在GitHub上开源，最新发布的 release 版本是 v2.1.8（仅按发布时间排）。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">再基于Doris+DeepSeek，问相同的问题，回答： <section style="text-align: center;" nodeleaf=""> <img src="/upload/27f8b5a39d70e19540abac2fe821c397.png" class="rich_pages wxw-img" data-ratio="0.5925925925925926" data-s="300,640" data-type="png" data-w="1080" type="block" data-imgfileid="503003874"> </section> 结果准确率明显上升，且完美结合了prompt和Doris知识数据进行回答。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">通过DeepSeek 结合 Doris 打造的 RAG 知识库，既发挥了 DeepSeek 强大的模型推理能力，又利用了 Doris 高效的存储与检索优势，大幅提升回答准确度，有效避免AI幻觉，为个人/企业带来高质量的本地知识库。 <h2 data-tool="mdnice编辑器" style="border-bottom-color: rgb(64, 184, 250);margin-top: 30px;margin-bottom: 15px;margin-left: 0px;margin-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: solid;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 4px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: block;flex-direction: unset;float: unset;height: auto;justify-content: unset;line-height: 1.5em;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;"><span data-cacheurl="" data-remoteid="" style="background-attachment: scroll;background-clip: border-box;background-color: transparent;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: 20px 20px;width: 20px;height: 20px;align-items: unset;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: unset;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: 0px;margin-bottom: -25px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;-webkit-box-reflect: unset;background-image: url(" https: mmbiz.qpic.cn sz_mmbiz_png fibmic00uxz23nxhmkeehcyaoicimygardsqnj5xwicjricawate7kicmzdria8lyice261phiavu1wfztvvwx9i9vcaew 640?wx_fmt="png&from=appmsg");""> <span style="font-size: 20px;color: rgb(64, 184, 250);line-height: 1.5em;letter-spacing: 0em;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;align-items: unset;background-attachment: scroll;background-clip: border-box;background-color: transparent;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;display: flex;font-weight: bold;flex-direction: unset;float: unset;height: auto;justify-content: unset;margin-top: 0px;margin-bottom: 0px;margin-left: 25px;margin-right: 0px;overflow-x: unset;overflow-y: unset;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: auto;-webkit-box-reflect: unset;">结语<span style="background-color: rgba(64, 184, 250, 0.5);align-items: unset;background-attachment: scroll;background-clip: border-box;background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-right-width: 1px;border-top-color: rgb(0, 0, 0);border-bottom-color: rgb(0, 0, 0);border-left-color: rgb(0, 0, 0);border-right-color: rgb(0, 0, 0);border-top-left-radius: 20px;border-top-right-radius: 0px;border-bottom-left-radius: 0px;border-bottom-right-radius: 0px;box-shadow: none;color: rgb(0, 0, 0);display: flex;font-size: 22px;font-weight: bold;flex-direction: unset;float: right;height: 10px;justify-content: unset;letter-spacing: 0px;line-height: 1.5em;margin-top: -10px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;overflow-x: unset;overflow-y: unset;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;text-align: left;text-indent: 0em;text-shadow: none;transform: none;width: 200px;-webkit-box-reflect: unset;"> </h2> <section style="text-align: center;" nodeleaf=""> <img class="rich_pages wxw-img" data-imgfileid="503003877" data-ratio="0.5425925925925926" data-s="300,640" src="/upload/5c7b3c1a255b9f32cc538b2c9e11e864.png" data-type="png" data-w="1080" type="block"> </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">知识库AI智能化是一个永无止境的进化过程。随着大模型技术的发展，未来可以探索更多优化方向： <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 实时更新：支持增量同步，保持知识时效性 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 知识推理：引入知识图谱，提升问答准确性 </section> <section style="margin-top: 5px;margin-bottom: 5px;color: rgb(89, 89, 89);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;font-weight: normal;"> <span style="color: rgb(51, 51, 51);font-family: Arial, sans-serif;font-size: 13px;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;background-color: rgb(255, 255, 255);text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;display: inline !important;float: none;">• 多模态支持：除文本外，支持图片、音视频等富媒体内容 </section> <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">技术在飞速发展，但打造一个好的知识库系统不仅仅是技术问题。建议从小规模试点开始，在实践中不断优化，让系统真正服务于业务需求。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">最后，近期看到很多小伙伴因为AI而感到危机。 <p data-tool="mdnice编辑器" style="color: rgb(43, 43, 43);font-size: 14px;line-height: 1.8em;letter-spacing: 0.02em;text-align: left;text-indent: 0em;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 8px;padding-bottom: 8px;padding-left: 0px;padding-right: 0px;">一臻表示：<strong style="color: rgb(53, 148, 247);font-weight: bold;background-attachment: scroll;background-clip: border-box;background-color: rgba(0, 0, 0, 0);background-image: none;background-origin: padding-box;background-position-x: 0%;background-position-y: 0%;background-repeat: no-repeat;background-size: auto;width: auto;height: auto;margin-top: 0px;margin-bottom: 0px;margin-left: 0px;margin-right: 0px;padding-top: 0px;padding-bottom: 0px;padding-left: 0px;padding-right: 0px;border-top-style: none;border-bottom-style: none;border-left-style: none;border-right-style: none;border-top-width: 3px;border-bottom-width: 3px;border-left-width: 3px;border-right-width: 3px;border-top-color: rgba(0, 0, 0, 0.4);border-bottom-color: rgba(0, 0, 0, 0.4);border-left-color: rgba(0, 0, 0, 0.4);border-right-color: rgba(0, 0, 0, 0.4);border-top-left-radius: 0px;border-top-right-radius: 0px;border-bottom-right-radius: 0px;border-bottom-left-radius: 0px;">AI不会替代人，但会用AI的人大概率会替代不会用AI的人。好比‌工业时代到互联网时代的转折期，会上网的人，替换了很多不会上网的人。互联网会把工业时代的产业重写一遍，AI也可以重写以往的产业模式。共勉！ </section>

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