\n| \n Bash<\/span> # \u5207\u6362\u5230 D \u76d8 D: # \u521b\u5efa\u6587\u4ef6\u5939 md LangChain_Project # \u8fdb\u5165\u8be5\u6587\u4ef6\u5939 cd LangChain_Project<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u521b\u5efa\u865a\u62df\u73af\u5883（\u73af\u5883\u540d\u81ea\u5b9a\u4e49，\u8fd9\u91cc\u7528 langchain_env<\/span>）：<\/li>\n\n\n\n| \n Bash<\/span> python -m venv langchain_env<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u6fc0\u6d3b\u865a\u62df\u73af\u5883<\/span>：<\/li>\n\n\n\n| \n Bash<\/span> # Windows cmd \u4e2d\u6267\u884c（\u5982\u679c\u7528 PowerShell，\u547d\u4ee4\u7565\u6709\u4e0d\u540c，\u89c1\u4e0b\u65b9\u5907\u6ce8） langchain_env\\\\Scripts\\\\activate.bat<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n- \u6fc0\u6d3b\u6210\u529f\u540e，\u547d\u4ee4\u884c\u524d\u7f00\u4f1a\u51fa\u73b0 (langchain_env)<\/span>，\u8868\u793a\u5f53\u524d\u5904\u4e8e\u8be5\u865a\u62df\u73af\u5883\u4e2d\u3002<\/li>\n<\/ul>\n
\n- \u5907\u6ce8：Windows PowerShell \u4e2d\u6fc0\u6d3b\u547d\u4ee4\u4e3a .\\\\langchain_env\\\\Scripts\\\\Activate.ps1<\/span>，\u82e5\u51fa\u73b0\u6743\u9650\u62a5\u9519，\u9700\u4ee5\u7ba1\u7406\u5458\u8eab\u4efd\u8fd0\u884c PowerShell，\u6267\u884c Set-ExecutionPolicy RemoteSigned<\/span>，\u9009\u62e9 Y<\/span>\u00a0\u5373\u53ef\u89e3\u51b3\u3002<\/li>\n<\/ul>\n
- （\u540e\u7eed\u64cd\u4f5c）\u6240\u6709\u4f9d\u8d56\u5b89\u88c5\u90fd\u5728\u6fc0\u6d3b\u540e\u7684\u865a\u62df\u73af\u5883\u4e2d\u8fdb\u884c，\u9000\u51fa\u865a\u62df\u73af\u5883\u7684\u547d\u4ee4<\/span>\u4e3a deactivate<\/span>\u3002<\/li>\n
\u4e8c\u3001\u5b89\u88c5 LangChain \u6838\u5fc3\u5305<\/p>\n LangChain \u63d0\u4f9b\u4e86\u591a\u4e2a\u7248\u672c\u7684\u5305，\u6838\u5fc3\u5305\u6ee1\u8db3\u57fa\u7840\u529f\u80fd，\u5b8c\u6574\u5305\u5305\u542b\u6240\u6709\u6269\u5c55\u4f9d\u8d56，\u5206\u4e24\u79cd\u5b89\u88c5\u65b9\u5f0f：<\/p>\n 1. \u5b89\u88c5\u6838\u5fc3\u5305（\u4ec5\u6ee1\u8db3\u57fa\u7840\u529f\u80fd，\u4f53\u79ef\u5c0f）<\/p>\n \u5728\u6fc0\u6d3b\u7684\u865a\u62df\u73af\u5883\u4e2d\u6267\u884c\u547d\u4ee4：<\/p>\n \n\n\n| \n Bash<\/span> pip install langchain<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2. \u5b89\u88c5\u5b8c\u6574\u5305（\u5305\u542b\u6240\u6709\u6269\u5c55\u4f9d\u8d56，\u63a8\u8350，\u907f\u514d\u540e\u7eed\u7f3a\u5c11\u4f9d\u8d56）<\/p>\n \n\n\n| \n Bash<\/span> pip install langchain[all]<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n3. \u52a0\u901f\u5b89\u88c5（\u89e3\u51b3\u56fd\u5185\u4e0b\u8f7d\u6162\u3001\u8d85\u65f6\u95ee\u9898）<\/p>\n \u4f7f\u7528\u56fd\u5185\u955c\u50cf\u6e90（\u963f\u91cc\u4e91\/\u6e05\u534e\u6e90）\u52a0\u901f，\u547d\u4ee4\u683c\u5f0f\u5982\u4e0b（\u4ee5\u5b8c\u6574\u5305\u4e3a\u4f8b，\u6838\u5fc3\u5305\u540c\u7406）：<\/p>\n \n\n\n| \n Bash<\/span> # \u963f\u91cc\u4e91\u955c\u50cf（\u63a8\u8350，\u901f\u5ea6\u7a33\u5b9a） pip install langchain[all] -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/ # \u6e05\u534e\u955c\u50cf pip install langchain[all] -i https:\/\/pypi.tuna.tsinghua.edu.cn\/simple\/<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u4e09\u3001\u5b89\u88c5\u989d\u5916\u4f9d\u8d56（\u6309\u9700\u9009\u62e9）<\/p>\n LangChain \u672c\u8eab\u662f\u4e00\u4e2a\u6846\u67b6，\u5f88\u591a\u529f\u80fd（\u5982\u8fde\u63a5\u5927\u6a21\u578b\u3001\u5411\u91cf\u6570\u636e\u5e93\u3001\u6587\u6863\u89e3\u6790）\u9700\u8981\u4f9d\u8d56\u989d\u5916\u7684\u7b2c\u4e09\u65b9\u5305，\u4ee5\u4e0b\u662f\u5e38\u7528\u4f9d\u8d56\u7684\u5b89\u88c5：<\/p>\n 1. \u5927\u6a21\u578b\u76f8\u5173\u4f9d\u8d56（\u6838\u5fc3\u5e38\u7528）<\/p>\n \n- \u5bf9\u63a5 OpenAI \u7cfb\u5217\u6a21\u578b（GPT-3.5\/4 \u7b49）：<\/li>\n<\/ul>\n
\n \n\n\n| \n Bash<\/span> pip install openai -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n- \u5bf9\u63a5\u56fd\u5185\u6a21\u578b（\u5982\u901a\u4e49\u5343\u95ee\u3001\u6587\u5fc3\u4e00\u8a00）：<\/li>\n<\/ul>\n
\n\n\n| \n Bash<\/span> # \u901a\u4e49\u5343\u95ee pip install dashscope -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/ # \u6587\u5fc3\u4e00\u8a00 pip install qianfan -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2. \u5411\u91cf\u6570\u636e\u5e93\u76f8\u5173\u4f9d\u8d56（\u7528\u4e8e\u77e5\u8bc6\u5e93\u3001RAG \u573a\u666f）<\/p>\n \n\n\n| \n Bash<\/span> # \u8f7b\u91cf\u7ea7\u5411\u91cf\u6570\u636e\u5e93（\u65b0\u624b\u5165\u95e8\u9996\u9009） pip install chromadb -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/ # \u5176\u4ed6\u5e38\u7528\u5411\u91cf\u6570\u636e\u5e93（\u6309\u9700\u5b89\u88c5） pip install pinecone-client faiss-cpu -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n3. \u6587\u6863\u89e3\u6790\u76f8\u5173\u4f9d\u8d56（\u7528\u4e8e\u89e3\u6790 PDF\u3001Word \u7b49\u6587\u6863）<\/p>\n \n\n\n| \n Bash<\/span> pip install pypdf python-docx -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u56db\u3001\u9a8c\u8bc1 LangChain \u90e8\u7f72\u6210\u529f<\/p>\n \u901a\u8fc7\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684 Python \u811a\u672c，\u9a8c\u8bc1 LangChain \u80fd\u5426\u6b63\u5e38\u8fd0\u884c，\u8fd9\u91cc\u4ee5\u57fa\u7840\u7684 LLMChain<\/span>\u00a0\u4e3a\u4f8b（\u82e5\u672a\u5b89\u88c5 OpenAI，\u53ef\u8df3\u8fc7\u8be5\u793a\u4f8b，\u4f7f\u7528 LangChain \u5185\u7f6e\u7684\u7b80\u6613\u6a21\u578b\u9a8c\u8bc1）\u3002<\/p>\n\u793a\u4f8b 1：\u4f7f\u7528\u5185\u7f6e\u7b80\u6613\u6a21\u578b\u9a8c\u8bc1（\u65e0\u9700 API \u5bc6\u94a5，\u96f6\u914d\u7f6e）<\/p>\n - \u5728 D:\\\\LangChain_Project<\/span>\u00a0\u6587\u4ef6\u5939\u4e2d，\u521b\u5efa\u4e00\u4e2a test_langchain.py<\/span>\u00a0\u6587\u4ef6，\u5199\u5165\u4ee5\u4e0b\u4ee3\u7801：<\/li>\n
\n\n\n| \n # \u5bfc\u5165 LangChain 1.2.7 \u9002\u914d\u6a21\u5757（\u96f6\u914d\u7f6e，\u65e0\u9700 API \u5bc6\u94a5）<\/span><\/p>\nfrom langchain_core.prompts import PromptTemplate<\/span><\/p>\nfrom langchain_community.llms.fake import FakeListLLM \u00a0# \u7eaf\u6a21\u62df\u6a21\u578b，\u65e0\u5916\u90e8\u4f9d\u8d56<\/span><\/p>\nfrom langchain_core.runnables import RunnableSequence<\/span><\/p>\n\n # 1. \u521d\u59cb\u5316\u6a21\u62df LLM \u6a21\u578b（\u9884\u8bbe\u8fd4\u56de\u7ed3\u679c，\u9002\u914d\u6a21\u677f\u4e2d\u7684 topic \u53d8\u91cf）<\/span><\/p>\n# \u8fd9\u91cc\u9884\u8bbe\u4e00\u6bb5\u5173\u4e8e LangChain \u7684\u4ecb\u7ecd，\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u591a\u6761\u7ed3\u679c\u8f6e\u8be2\u8fd4\u56de<\/span><\/p>\nllm = FakeListLLM(<\/span><\/p>\n\u00a0\u00a0\u00a0\u00a0responses=[<\/span><\/p>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0"LangChain \u662f\u4e00\u6b3e\u5f00\u6e90\u5927\u8bed\u8a00\u6a21\u578b\u5e94\u7528\u5f00\u53d1\u6846\u67b6，\u652f\u6301\u96c6\u6210\u5916\u90e8\u6570\u636e\u3001\u7b2c\u4e09\u65b9\u5de5\u5177，\u80fd\u5feb\u901f\u642d\u5efa\u77e5\u8bc6\u5e93\u3001\u5bf9\u8bdd\u673a\u5668\u4eba\u7b49\u590d\u6742 LLM \u5e94\u7528，\u64cd\u4f5c\u7b80\u6d01\u4e14\u6269\u5c55\u6027\u5f3a\u3002"<\/span><\/p>\n\u00a0\u00a0\u00a0\u00a0]<\/span><\/p>\n)<\/span><\/p>\n\n # 2. \u5b9a\u4e49\u63d0\u793a\u8bcd\u6a21\u677f<\/span><\/p>\nprompt_template = PromptTemplate(<\/span><\/p>\n\u00a0\u00a0\u00a0\u00a0input_variables=["topic"],<\/span><\/p>\n\u00a0\u00a0\u00a0\u00a0template="\u8bf7\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b {topic}，\u5b57\u6570\u63a7\u5236\u5728100\u5b57\u4ee5\u5185\u3002"<\/span><\/p>\n)<\/span><\/p>\n\n # 3. \u6784\u5efa\u65b0\u7248\u94fe\u5f0f\u8c03\u7528（\u7ba1\u9053\u7b26 | \u662f 1.0+ \u63a8\u8350\u5199\u6cd5）<\/span><\/p>\nllm_chain = prompt_template | llm<\/span><\/p>\n\n # 4. \u8fd0\u884c\u5e76\u8f93\u51fa\u7ed3\u679c<\/span><\/p>\nresult = llm_chain.invoke({"topic": "LangChain"})<\/span><\/p>\n\n # 5. \u8f93\u51fa\u6700\u7ec8\u7ed3\u679c<\/span><\/p>\nprint("\u8f93\u51fa\u7ed3\u679c：")<\/span><\/p>\nprint(result)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n- \u5728 cmd \u4e2d（\u4fdd\u6301\u865a\u62df\u73af\u5883\u6fc0\u6d3b），\u5207\u6362\u5230 D:\\\\LangChain_Project<\/span>\u00a0\u6587\u4ef6\u5939，\u6267\u884c\u811a\u672c：<\/li>\n
\n\n\n| \n Bash<\/span> python test_langchain.py<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n- \u82e5\u80fd\u6b63\u5e38\u8f93\u51fa\u5173\u4e8e LangChain \u7684\u7b80\u5355\u4ecb\u7ecd，\u8bf4\u660e LangChain \u6838\u5fc3\u73af\u5883\u90e8\u7f72\u6210\u529f\u3002<\/li>\n
\u793a\u4f8b 2：\u4f7f\u7528 OpenAI \u6a21\u578b\u9a8c\u8bc1（\u9700\u81ea\u5907 OpenAI API \u5bc6\u94a5）<\/p>\n - \u4fee\u6539 test_langchain.py<\/span>\u00a0\u4ee3\u7801：<\/li>\n
\n\n\n| \n # \u5bfc\u5165\u5fc5\u8981\u6a21\u5757<\/span><\/p>\nimport os<\/span><\/p>\nfrom langchain_core.prompts import PromptTemplate<\/span><\/p>\nfrom langchain_openai import OpenAI \u00a0# \u65b0\u7248\u4e13\u7528 OpenAI \u5ba2\u6237\u7aef<\/span><\/p>\nfrom langchain_core.runnables import RunnableSequence<\/span><\/p>\n\n # 1. \u914d\u7f6e OpenAI API \u5bc6\u94a5（\u4e24\u79cd\u65b9\u5f0f\u4e8c\u9009\u4e00）<\/span><\/p>\n# \u65b9\u5f0f 1：\u76f4\u63a5\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf<\/span><\/p>\nos.environ["OPENAI_API_KEY"] = "\u4f60\u7684 OpenAI API \u5bc6\u94a5" \u00a0# \u66ff\u6362\u4e3a\u771f\u5b9e\u5bc6\u94a5<\/span><\/p>\n\n # \u65b9\u5f0f 2：\u521d\u59cb\u5316\u6a21\u578b\u65f6\u76f4\u63a5\u4f20\u5165（\u4f18\u5148\u7ea7\u66f4\u9ad8）<\/span><\/p>\n# llm = OpenAI(openai_api_key="\u4f60\u7684 OpenAI API \u5bc6\u94a5", temperature=0.7)<\/span><\/p>\n\n # 2. \u521d\u59cb\u5316 OpenAI \u6a21\u578b<\/span><\/p>\nllm = OpenAI(temperature=0.7)<\/span><\/p>\n\n # 3. \u5b9a\u4e49\u63d0\u793a\u8bcd\u6a21\u677f<\/span><\/p>\nprompt_template = PromptTemplate(<\/span><\/p>\n\u00a0\u00a0\u00a0\u00a0input_variables=["topic"],<\/span><\/p>\n\u00a0\u00a0\u00a0\u00a0template="\u8bf7\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b {topic}，\u5b57\u6570\u63a7\u5236\u5728100\u5b57\u4ee5\u5185\u3002"<\/span><\/p>\n)<\/span><\/p>\n\n # 4. \u6784\u5efa\u94fe\u5f0f\u8c03\u7528<\/span><\/p>\nllm_chain = prompt_template | llm<\/span><\/p>\n\n # 5. \u8fd0\u884c\u5e76\u8f93\u51fa\u7ed3\u679c<\/span><\/p>\nresult = llm_chain.invoke({"topic": "LangChain"})<\/span><\/p>\n\n # 6. \u8f93\u51fa\u7ed3\u679c<\/span><\/p>\nprint("\u8f93\u51fa\u7ed3\u679c：")<\/span><\/p>\nprint(result)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n- \u6267\u884c\u811a\u672c，\u82e5\u80fd\u6b63\u5e38\u8fd4\u56de GPT-3.5 \u751f\u6210\u7684\u7ed3\u679c，\u8bf4\u660e LangChain \u4e0e OpenAI \u6a21\u578b\u7684\u5bf9\u63a5\u4e5f\u6b63\u5e38\u3002<\/li>\n
\u4e94\u3001\u5e38\u89c1\u95ee\u9898\u6392\u67e5<\/p>\n - \u62a5\u9519 ModuleNotFoundError: No module named 'langchain'<\/span>：\u8bf4\u660e LangChain \u672a\u5b89\u88c5\u6210\u529f，\u6216\u672a\u5728\u6fc0\u6d3b\u865a\u62df\u73af\u5883\u7684\u7ec8\u7aef\u4e2d\u6267\u884c\u811a\u672c，\u91cd\u65b0\u5b89\u88c5\u5e76\u786e\u8ba4\u865a\u62df\u73af\u5883\u6fc0\u6d3b\u72b6\u6001\u3002<\/li>\n
- \u4e0b\u8f7d\u8d85\u65f6\u3001\u62a5\u9519 ReadTimeoutError<\/span>：\u4f7f\u7528\u56fd\u5185\u955c\u50cf\u6e90\u91cd\u65b0\u5b89\u88c5，\u6216\u68c0\u67e5\u7f51\u7edc\u8fde\u63a5\u3002<\/li>\n
- PowerShell \u6fc0\u6d3b\u865a\u62df\u73af\u5883\u6743\u9650\u62a5\u9519：\u4ee5\u7ba1\u7406\u5458\u8eab\u4efd\u8fd0\u884c PowerShell，\u6267\u884c Set-ExecutionPolicy RemoteSigned<\/span>\u00a0\u89e3\u51b3\u3002<\/li>\n
- \u4f9d\u8d56\u7248\u672c\u51b2\u7a81：\u5efa\u8bae\u4f7f\u7528\u5168\u65b0\u7684\u865a\u62df\u73af\u5883，\u907f\u514d\u4e0e\u5176\u4ed6\u9879\u76ee\u4f9d\u8d56\u51b2\u7a81，\u82e5\u4ecd\u6709\u51b2\u7a81，\u53ef\u6307\u5b9a\u5177\u4f53\u7248\u672c\u5b89\u88c5（\u5982 pip install langchain==0.1.0<\/span>）\u3002<\/li>\n
- \u5b89\u88c5\u7684LangChain \u5305\u4e0d\u5b8c\u6574，\u5bfc\u81f4\u8fd0\u884c\u65f6\u7f3a\u5c11\u76f8\u5173\u7ec4\u4ef6，\u53ef\u4ee5\u91cd\u65b0\u5378\u8f7d\u5f53\u524d\u6b8b\u7f3a\u7684langChain，\u91cd\u65b0\u5b89\u88c5\u5b8c\u6574\u5305\u3002<\/li>\n
\n\n\n| \n # \u5148\u5378\u8f7d\u5f53\u524d\u6b8b\u7f3a\u7684 LangChain<\/span><\/p>\npip uninstall langchain -y<\/span><\/p>\n\n # \u5b89\u88c5 LangChain \u5b8c\u6574\u5305（1.2.7 \u7248\u672c，\u5305\u542b\u6240\u6709\u7ec4\u4ef6，\u5305\u62ec chains）<\/span><\/p>\npip install langchain[all]==1.2.7 -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n \n \u603b\u7ed3<\/p>\n - \u6838\u5fc3\u524d\u7f6e\u6761\u4ef6\u662f\u5b89\u88c5 Python 3.8+\u00a0\u5e76\u52fe\u9009 Add Python to PATH<\/span>，\u63a8\u8350\u4f7f\u7528\u865a\u62df\u73af\u5883\u9694\u79bb\u4f9d\u8d56\u3002<\/li>\n
- LangChain \u5b89\u88c5\u4f18\u5148\u9009\u62e9\u5b8c\u6574\u5305 langchain[all]<\/span>，\u642d\u914d\u56fd\u5185\u955c\u50cf\u6e90\u52a0\u901f\u4e0b\u8f7d，\u907f\u514d\u4f9d\u8d56\u7f3a\u5931\u3002<\/li>\n
- \u90e8\u7f72\u6210\u529f\u7684\u9a8c\u8bc1\u53ef\u901a\u8fc7\u5185\u7f6e\u7b80\u6613\u6a21\u578b\u5feb\u901f\u5b8c\u6210（\u65e0\u9700 API \u5bc6\u94a5），\u590d\u6742\u529f\u80fd\u9700\u989d\u5916\u5b89\u88c5\u5bf9\u5e94\u7b2c\u4e09\u65b9\u4f9d\u8d56（\u5982 OpenAI\u3001Chromadb）\u3002<\/li>\n
- \u6240\u6709\u64cd\u4f5c\u5efa\u8bae\u5728\u6fc0\u6d3b\u540e\u7684\u865a\u62df\u73af\u5883\u4e2d\u8fdb\u884c，\u907f\u514d\u6c61\u67d3\u5168\u5c40 Python \u73af\u5883\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"
\u60f3\u4e86\u89e3 LangChain \u5728 Windows \u7cfb\u7edf\u4e0a\u7684\u5b8c\u6574\u90e8\u7f72\u6b65\u9aa4，\u63a5\u4e0b\u6765\u5e2e\u4f60\u68b3\u7406\u4ece\u73af\u5883\u51c6\u5907\u5230\u9a8c\u8bc1\u6210\u529f\u7684\u5168\u5957\u6d41\u7a0b，\u5168\u7a0b\u517c\u987e\u65b0\u624b\u53cb\u597d\u6027，\u6b65\u9aa4\u6e05\u6670\u53ef\u843d\u5730\u3002
\n\u4e00\u3001\u524d\u7f6e\u51c6\u5907（\u6838\u5fc3\u4f9d\u8d56）
\nLangChain \u57fa\u4e8e Python \u5f00\u53d1，\u9996\u5148\u9700\u8981\u642d\u5efa\u5b8c\u6574\u7684 Python \u73af\u5883，\u63a8\u8350\u4f7f\u7528 Python 3.8 \u53ca\u4ee5\u4e0a\u7248\u672c（\u517c\u5bb9 LangChain \u6240\u6709\u6838\u5fc3\u529f\u80fd，<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[997],"topic":[],"class_list":["post-70002","post","type-post","status-publish","format-standard","hentry","category-server","tag-langchain"],"yoast_head":"\n Window\u4e0a\u5b89\u88c5langChain\uff08\u9002\u7528\u4e8e\u5c0f\u767d\u7528\u6237\uff0c\u4eb2\u6d4b\u6709\u6548\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/70002.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Window\u4e0a\u5b89\u88c5langChain\uff08\u9002\u7528\u4e8e\u5c0f\u767d\u7528\u6237\uff0c\u4eb2\u6d4b\u6709\u6548\uff09 - 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