{"id":1599,"date":"2024-05-25T11:38:45","date_gmt":"2024-05-25T11:38:45","guid":{"rendered":"https:\/\/www.nicekj.com\/?p=1599"},"modified":"2024-05-25T11:39:09","modified_gmt":"2024-05-25T11:39:09","slug":"shiyong-langchain-he-openai-goujianzijideliaotianjiqiren","status":"publish","type":"post","link":"https:\/\/www.nicekj.com\/shiyong-langchain-he-openai-goujianzijideliaotianjiqiren.html","title":{"rendered":"\u4f7f\u7528 LangChain \u548c OpenAI \u6784\u5efa\u81ea\u5df1\u7684\u804a\u5929\u673a\u5668\u4eba"},"content":{"rendered":"

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 LangChain \u548c OpenAI \u521b\u5efa\u4e00\u4e2a\u9488\u5bf9\u7279\u5b9a\u6848\u4f8b\u6784\u5efa\u7684\u804a\u5929\u673a\u5668\u4eba\u3002\u5982\u679c\u60a8\u521a\u521a\u4e86\u89e3LLM\u6216\u5bf9\u5b83\u77e5\u4e4b\u751a\u5c11\uff0c\u90a3\u4e48\u60a8\u6765\u5bf9\u5730\u65b9\u4e86\u3002\u672c\u6587\u5bf9\u4e8e\u521d\u5b66\u8005\u4e5f\u662f\u6613\u4e8e\u4e86\u89e3\u3002<\/p>\n

\u672c\u5957\u7cfb\u5217\u662f\u7531\u4e09\u90e8\u5206\u7ec4\u6210\u7684\uff0c\u8fd9\u662f\u7b2c\u4e00\u90e8\u5206\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ece\u4e3a\u7279\u5b9a\u6848\u4f8b\u521b\u5efa\u804a\u5929\u673a\u5668\u4eba\u5f00\u59cb\uff0c\u7136\u540e\u5728\u7b2c\u4e8c\u4e2a\u6559\u7a0b\u4e2d\u7ee7\u7eed\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\uff0c\u6700\u540e\u5b66\u4e60\u5982\u4f55\u5c06\u5176\u4e0e\u5916\u90e8\u6570\u636e\u8fdb\u884c\u94fe\u63a5\u3002<\/p>\n

\n

\"image.png\"<\/figure>\n<\/p>\n

\u8bd5\u60f3\u4e00\u4e0b\uff0c\u5047\u5982\u60a8\u521a\u521a\u5f00\u59cb\u4ece\u4e8b\u9500\u552e\u51b0\u6dc7\u6dcb\u7684\u4e1a\u52a1\uff0c\u5e76\u60f3\u4e86\u89e3\u6709\u5173\u51b0\u6dc7\u6dcb\u7684\u76f8\u5173\u4fe1\u606f\uff08\u60a8\u7684\u7406\u60f3\u5ba2\u6237\u3001\u72ec\u7279\u7684\u53e3\u5473\u7ec4\u5408\u3001\u7b80\u5355\u7684\u51b0\u6dc7\u6dcb\u914d\u65b9\u7b49\uff09\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 LangChain \u548c OpenAI \u7684\u6587\u672c\u8865\u5168\u6a21\u578b\u5f00\u53d1\u6211\u4eec\u7684\u804a\u5929\u673a\u5668\u4eba\u3002\u4ec0\u4e48\u662fLangChain\uff1f\uff0cLangChain\u662f\u4e00\u4e2a\u6846\u67b6\uff0c\u901a\u8fc7\u63d0\u4f9b\u8db3\u591f\u7684\u62bd\u8c61\uff0c\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u4f7f\u7528\u5927\u578b\u8bed\u8a00\u6a21\u578b\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n

\u73af\u5883\u8bbe\u7f6e<\/h2>\n

\u6211\u66f4\u559c\u6b22\u4e3a\u6bcf\u4e2a\u9879\u76ee\u8bbe\u7f6e\u4e00\u4e2a\u65b0\u7684 Conda<\/a> \u73af\u5883\u3002\u5982\u679c\u60a8\u4e0d\u719f\u6089 Conda\uff0c\u8fd8\u53ef\u4ee5\u5728\u60a8\u9009\u62e9\u7684 IDE \u4e2d\u8bbe\u7f6e\u865a\u62df\u73af\u5883\u3002\u5728\u63a5\u4e0b\u6765\u7684\u6b65\u9aa4\u4e2d\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u521b\u5efa\u65b0\u7684 Conda \u73af\u5883\u3001\u6fc0\u6d3b\u5b83\u4ee5\u53ca\u5728\u73af\u5883\u4e2d\u5b89\u88c5\u6240\u6709\u5fc5\u8981\u7684\u5e93\u3002<\/p>\n

<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>conda create --name chatbot_langchain python=3.10<\/span><\/span>\n<\/code><\/pre>\n
\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u6765\u6fc0\u6d3b\u60a8\u7684\u73af\u5883<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>conda activate chatbot_langchain<\/span>\n<\/code><\/pre>\n
\u73b0\u5728\uff0c\u60a8\u5df2\u7ecf\u521b\u5efa\u4e86\u7279\u5b9a\u4e8e\u6b64\u9879\u76ee\u7684\u65b0 Conda \u73af\u5883\uff0c\u8bf7\u7ee7\u7eed\u5b89\u88c5\u6240\u6709\u5fc5\u9700\u7684\u4f9d\u8d56\u9879\u3002\u6fc0\u6d3b\u73af\u5883\u540e\uff0c\u53ef\u4ee5\u5728\u540c\u4e00\u7ec8\u7aef\u4e2d\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u6267\u884c\u6b64\u64cd\u4f5c\u3002<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>pip install -r requirements.txt<\/span>\n<\/code><\/pre>\n
\u8fd9\u662frequirements.txt\u6587\u4ef6\u7684\u5185\u5bb9<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>langchain==0.1<\/span>.1<\/span><\/span>\nopenai==1.9<\/span>.0<\/span><\/span>\nnbconvert<\/span>\npython-dotenv==1.0<\/span>.0<\/span><\/span>\nlangchain-openai<\/span>\nchainlit<\/span>\nuvicorn==0.25<\/span>.0<\/span><\/span>\nFlask==3.0<\/span>.1<\/span><\/span>\n<\/code><\/pre>\n
\u73b0\u5728\uff0c\u6211\u4eec\u5df2\u7ecf\u51c6\u5907\u597d\u5f00\u59cb\u4e3a\u804a\u5929\u673a\u5668\u4eba\u6765\u7f16\u5199\u4ee3\u7801\u4e86\u3002<\/p>\n
\u5f00\u59cb\u5b9e\u65bd<\/h2>\n
\u6b65\u9aa41\uff1a<\/h3>\n
\u9996\u5148\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u63d0\u793a\u6765\u67e5\u8be2\u6211\u4eec\u7684\u5927\u578b\u8bed\u8a00\u6a21\u578b\u3002\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 OpenAI \u7684\u6587\u672c\u8865\u5168\u6a21\u578b\uff0c\u7279\u522b\u662f gpt-3.5-turbo-instruct<\/em>\u3002\u5bf9\u4e8e\u8fd9\u4e2a\u9879\u76ee\uff0c\u6211\u4eec\u8981\u6784\u5efa\u4e00\u4e2a\u804a\u5929\u673a\u5668\u4eba\uff0c\u5b83\u5c06\u5e2e\u52a9\u7528\u6237\u56de\u7b54\u4efb\u4f55\u4e0e\u51b0\u6dc7\u6dcb\u76f8\u5173\u7684\u95ee\u9898\u3002\u7528\u6237\u53ef\u4ee5\u5411\u673a\u5668\u4eba\u8be2\u95ee\u4e0e\u51b0\u6dc7\u6dcb\u6709\u5173\u7684\u4efb\u4f55\u95ee\u9898\uff08\u51b0\u6dc7\u6dcb\u53e3\u5473\u7ec4\u5408\u3001\u98df\u8c31\uff0c\u751a\u81f3\u51b0\u6dc7\u6dcb\u7b11\u8bdd\uff09\u3002\u4f46\u662f\uff0c\u6211\u4eec\u4e0d\u5e0c\u671b\u6211\u4eec\u7684\u804a\u5929\u673a\u5668\u4eba\u56de\u7b54\u4e0e\u51b0\u6dc7\u6dcb\u65e0\u5173\u7684\u95ee\u9898\u3002\u6240\u4ee5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6240\u6709\u8fd9\u4e9b\u6307\u4ee4\u7f16\u5199\u5230\u6211\u4eec\u7684\u63d0\u793a\u4e2d\u3002<\/p>\n
\u4e3a\u4e86\u4fdd\u6301\u4ee3\u7801\u5e93\u7684\u6a21\u5757\u5316\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 python \u811a\u672c prompts.py<\/em> \u6765\u5b58\u653e\u6211\u4eec\u6240\u6709\u7684\u63d0\u793a\u3002\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u5c06\u63d0\u793a\u4f20\u9012\u7ed9 LangChain \u4e2d\u7684\u63d0\u793a\u6a21\u677f\uff0c\u5e76\u5c06\u5176\u5bfc\u5165\u5230\u60a8\u7684\u4e3b\u811a\u672c\u4e2d\u3002\u53ef\u4ee5\u5c06 PromptTemplate<\/em> \u89c6\u4e3a\u63d0\u793a\u7684\u5305\u88c5\u5668\uff0c\u60a8\u53ef\u4ee5\u5728\u5176\u4e2d\u6307\u5b9a\u8f93\u5165\u53d8\u91cf\u4ee5\u53ca\u4efb\u4f55\u5176\u4ed6\u5173\u952e\u7684\u4fe1\u606f\u3002<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from<\/span> langchain.prompts import<\/span> PromptTemplate<\/span>\n<\/code><\/pre>\n
\u4e0b\u9762\u662f\u6211\u4eec\u7684\u63d0\u793a\u6307\u4ee4\uff0c\u6765\u544a\u8bc9\u804a\u5929\u673a\u5668\u4eba\u5b83\u5e94\u8be5\u505a\u4ec0\u4e48\u3002<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>ice_cream_assistant_template = \"\"\"  <\/span><\/span>\nYou are an ice cream assistant chatbot named \"Scoopsie\". Your expertise is  <\/span>\nexclusively in providing information and advice about anything related to ice creams. This includes flavor combinations, ice cream recipes, and general  <\/span>\nice cream-related queries. You do not provide information outside of this  <\/span>\nscope. If a question is not about ice cream, respond with, \"I specialize only in ice cream related queries.\"  <\/span>\nQuestion: {question}  <\/span>\nAnswer:\"\"\"  <\/span>\n  <\/span>\nice_cream_assistant_prompt_template = PromptTemplate(  <\/span>\ninput_variables=[\"question\"<\/span>],  <\/span>\ntemplate=ice_cream_assistant_template  <\/span>\n)<\/span>\n<\/code><\/pre>\n
\u6211\u628a\u6211\u4eec\u7684\u51b0\u6dc7\u6dcb\u52a9\u624b\u547d\u540d\u4e3aScoopsie\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u559c\u597d\u4efb\u4f55\u540d\u79f0\u6216\u4e0d\u547d\u540d\u4efb\u4f55\u540d\u79f0\u3002\u81ea\u5b9a\u4e49\u804a\u5929\u673a\u5668\u4eba\u901a\u5e38\u4f1a\u88ab\u8d4b\u4e88\u4e00\u4e2a\u540d\u79f0\uff0c\u8fd9\u4e5f\u6709\u52a9\u4e8e\u6211\u4eec\u5728\u67e5\u8be2\u6a21\u578b\u65f6\u9a8c\u8bc1\u63d0\u793a\u3002\u5f53\u60a8\u67e5\u8be2\u804a\u5929\u673a\u5668\u4eba\u8be2\u95ee\u5b83\u7684\u540d\u5b57\u65f6\uff0c\u5b83\u5e94\u8be5\u8bf4\u5b83\u662f Scoopsie\u3002\u540c\u6837\uff0c\u5982\u679c\u4f60\u95ee\u5b83\u4e00\u4e9b\u4e0e\u51b0\u6dc7\u6dcb\u65e0\u5173\u7684\u4e8b\u60c5\uff0c\u5b83\u5e94\u8be5\u8bf4\u5b83\u4e0d\u77e5\u9053\u7b54\u6848\u3002<\/p>\n
\u6b65\u9aa42\uff1a<\/h3>\n
\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 OpenAI \u7684 gpt 3.5 \u6a21\u578b\u3002\u60a8\u53ef\u4ee5\u5728 OpenAI<\/a> \u4e0a\u6ce8\u518c\u5e76\u83b7\u53d6\u81ea\u5df1\u7684\u5bc6\u94a5\u6765\u5f00\u59cb\u8c03\u7528 gpt \u6a21\u578b\u3002\u83b7\u5f97\u5bc6\u94a5\u540e\uff0c\u5728\u9879\u76ee\u4e2d\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5e76\u5b58\u50a8 OpenAI \u5bc6\u94a5\u3002.env<\/code><\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>OPENAI_API_KEY=\"your_unique_key_goes_here\"<\/span><\/span>\n<\/code><\/pre>\n
\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 python-dotenv \u5e93\u6765\u8bbf\u95ee\u6b64\u5bc6\u94a5\u3002Python-dotenv \u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u952e\u503c\u5bf9\uff0c\u5e76\u53ef\u4ee5\u5c06\u5b83\u4eec\u8bbe\u7f6e\u4e3a\u73af\u5883\u53d8\u91cf\u3002\u8be5\u5e93\u5df2\u4ece\u73af\u5883\u8bbe\u7f6e\u4e2d\u5b89\u88c5\u5728 conda \u6216 virtualenv \u4e2d\u3002\u5728\u4e3b python \u811a\u672c\u4e2d\uff0c\u60a8\u9700\u8981\u4ece\u5e93\u4e2d\u8c03\u7528\u4ee5\u4e0b\u51fd\u6570\uff1a<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from<\/span> dotenv import<\/span> load_dotenv<\/span>\nload_dotenv()<\/span>\n<\/code><\/pre>\n
\u6b65\u9aa43\uff1a<\/h3>\n
\u4e0b\u4e00\u7ec4\u4ee3\u7801\u5c06\u7ec4\u88c5\u5728\u4e00\u4e2a\u540d\u4e3a chatbot.py<\/em> \u7684\u65b0 python \u811a\u672c\u4e2d\u3002\u8fd9\u662f\u6211\u4eec\u7684\u4e3b\u8981\u811a\u672c\uff0c\u7528\u4e8e\u4e0e\u6a21\u578b\u8fdb\u884c\u4ea4\u4e92\u3002\u4f46\u662f\uff0c\u4e3a\u4e86\u4fbf\u4e8e\u7406\u89e3\uff0c\u6211\u5df2\u5c06\u5176\u5206\u89e3\u4e3a\u66f4\u5c0f\u7684\u7ec4\u4ef6\uff0c\u6211\u5c06\u5728\u63a5\u4e0b\u6765\u7684\u51e0\u4e2a\u6b65\u9aa4\u4e2d\u89e3\u91ca\u8fd9\u4e9b\u7ec4\u4ef6\u3002\u9996\u5148\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a OpenAI \u7c7b\u7684\u5b9e\u4f8b\uff0c\u8be5\u5b9e\u4f8b\u914d\u7f6e\u4e3a\u4f7f\u7528\u5177\u6709\u7279\u5b9a\u6e29\u5ea6\u503c\u7684\u7279\u5b9a\u6a21\u578b\u3002<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from<\/span> langchain_openai import<\/span> OpenAI  <\/span>\nllm = OpenAI(model='gpt-3.5-turbo-instruct'<\/span>, temperature=0.7<\/span>)<\/span>\n<\/code><\/pre>\n
\u5728 2024 \u5e74 1 \u6708 4 \u65e5\u7684\u66f4\u65b0\u4e4b\u540e\uff0cOpenAI \u5f03\u7528\u4e86\u8bb8\u591a\u6a21\u578b\uff0c\u5e76\u7528\u65b0\u6a21\u578b\u53d6\u800c\u4ee3\u4e4b\u3002\u5373\u4f7f\u60a8\u4f7f\u7528\u7684\u662f\u65e7\u7248\u672c\u7684 LangChain \u5e93\uff0c\u4e5f\u8981\u786e\u4fdd\u4f7f\u7528\u51fd\u6570\u6a21\u578b\u3002\u5728\u5b9e\u4f8b\u5316\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u6a21\u578b\u540d\u79f0\uff0c\u5e76\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u6e29\u5ea6\u503c\u3002\u5728\u50cfOpenAI\u8fd9\u6837\u7684\u5927\u578b\u8bed\u8a00\u6a21\u578b\u4e2d\uff0c\u201c\u6e29\u5ea6\u201d\u63a7\u5236\u7740\u6587\u672c\u751f\u6210\u7684\u968f\u673a\u6027\u3002\u4f4e\u6e29\uff080 \u5230 0.5\uff09\u4f1a\u4ea7\u751f\u53ef\u9884\u6d4b\u7684\u786e\u5b9a\u6027\u6587\u672c\uff0c\u800c\u9ad8\u6e29\uff08\u9ad8\u4e8e 1.0\uff09\u4f1a\u589e\u52a0\u521b\u9020\u529b\u548c\u4e0d\u53ef\u9884\u6d4b\u6027\u3002\u4ecb\u4e8e 0.5 \u548c 1.0 \u4e4b\u95f4\u7684\u503c\u662f\u968f\u673a\u6027\u548c\u53ef\u9884\u6d4b\u6027\u4e4b\u95f4\u7684\u826f\u597d\u5e73\u8861\u3002<\/p>\n
\u6b65\u9aa44\uff1a<\/h3>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a LLM \u94fe\u3002\u5728LangChain\u4e2d\uff0cLLM\u94fe\u4ee3\u8868\u4e86\u4e0e\u8bed\u8a00\u6a21\u578b\u4ea4\u4e92\u7684\u66f4\u9ad8\u5c42\u6b21\u7684\u62bd\u8c61\u3002\u867d\u7136\u6211\u4eec\u53ef\u4ee5\u5728\u7b80\u5355\u7684\u804a\u5929\u673a\u5668\u4eba\u4e2d\u4f7f\u7528\u76f4\u63a5\u7684 LLM \u754c\u9762\uff0c\u4f46 LLMChain<\/em> \u754c\u9762\u5305\u88c5\u4e86 LLM \u4ee5\u6dfb\u52a0\u5176\u4ed6\u529f\u80fd\u3002\u6709\u4e86\u94fe\uff0c\u6211\u4eec\u53ef\u4ee5\u8fdb\u884c\u63d0\u793a\u683c\u5f0f\u5316\u548c\u8f93\u5165\/\u8f93\u51fa\u89e3\u6790\uff0c\u5e76\u4e14\u5b83\u4eec\u88ab\u66f4\u9ad8\u7ea7\u522b\u7684 LangChain \u5de5\u5177\u5e7f\u6cdb\u4f7f\u7528\u3002\u5bf9\u4e8e\u6211\u4eec\u7684\u7b80\u5355\u804a\u5929\u673a\u5668\u4eba\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 LLMChain<\/em>\uff0c\u5e76\u5c06\u6211\u4eec\u521b\u5efa\u7684\u6a21\u578b\u5bf9\u8c61\u4e0e\u6211\u4eec\u7684\u51b0\u6dc7\u6dcb\u52a9\u624b\u63d0\u793a\u6a21\u677f\u4e00\u8d77\u4f20\u9012\u7ed9\u5b83\u3002<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from<\/span> langchain.chains import<\/span> LLMChain  <\/span>\nllm_chain = LLMChain(llm=llm, prompt=ice_cream_assistant_prompt_template)<\/span>\n<\/code><\/pre>\n
\u6b65\u9aa45\uff1a<\/h3>\n
\u6b64\u65f6\uff0c\u6211\u4eec\u7684\u7b80\u5355\u804a\u5929\u673a\u5668\u4eba\u7684\u4ee3\u7801\u57fa\u672c\u5b8c\u6574\u3002\u6211\u4eec\u53ea\u9700\u8981\u4e3a\u6211\u4eec\u7684\u811a\u672c\uff08\u4e5f\u79f0\u4e3a main \u51fd\u6570\uff09\u521b\u5efa\u4e00\u4e2a\u5165\u53e3\u70b9\u3002\u6211\u4eec\u8fd8\u9700\u8981\u80fd\u591f\u67e5\u8be2\u6211\u4eec\u7684\u6a21\u578b\u3002\u8fd9\u662f\u4f7f\u7528\u5e26\u6709 llm_chain<\/em> \u5bf9\u8c61\u7684 invoke \u51fd\u6570\u5b8c\u6210\u7684\u3002\u5c06\u6211\u4eec\u5230\u76ee\u524d\u4e3a\u6b62\u6240\u505a\u7684\u4e00\u5207\u653e\u5728\u6211\u4eec\u7684 chatbot.py<\/em> \u811a\u672c\u4e2d\uff0c\u4f60\u4f1a\u5f97\u5230\u5982\u4e0b\u6240\u793a\u7684\u5185\u5bb9\uff1a<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>from<\/span> langchain_openai import<\/span> OpenAI  <\/span>\nfrom<\/span> langchain.chains import<\/span> LLMChain  <\/span>\nfrom<\/span> prompts import<\/span> ice_cream_assistant_prompt_template  <\/span>\nfrom<\/span> dotenv import<\/span> load_dotenv  <\/span>\n  <\/span>\nload_dotenv()  <\/span>\n  <\/span>\nllm = OpenAI(model='gpt-3.5-turbo-instruct'<\/span>, temperature=0.7<\/span>)  <\/span>\n  <\/span>\nllm_chain = LLMChain(llm=llm, prompt=ice_cream_assistant_prompt_template)  <\/span>\n  <\/span>\ndef<\/span> query_llm<\/span>(question<\/span>):  <\/span>\n\tprint<\/span>(llm_chain.invoke({'question'<\/span>: question})['text'<\/span>])  <\/span>\n  <\/span>\nif<\/span> __name__ == '__main__'<\/span>:  <\/span>\n\tquery_llm(\"Who are you?\"<\/span>)<\/span>\n<\/code><\/pre>\n
\u6d4b\u8bd5\u548c\u9a8c\u8bc1<\/h2>\n
\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u6765\u6d4b\u8bd5\u673a\u5668\u4eba\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u8fd8\u6ca1\u6709\u5c06\u4efb\u4f55\u5185\u5b58\u96c6\u6210\u5230\u6211\u4eec\u7684\u673a\u5668\u4eba\u4e2d\uff0c\u56e0\u6b64\u6bcf\u4e2a\u67e5\u8be2\u90fd\u5fc5\u987b\u662f\u5b83\u81ea\u5df1\u7684\u51fd\u6570\u8c03\u7528\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5728\u6d4b\u8bd5\u4efb\u4f55 llm \u5e94\u7528\u7a0b\u5e8f\/\u673a\u5668\u4eba\u65f6\uff0c\u6211\u559c\u6b22\u4ece\u51e0\u4e2a\u57fa\u672c\u95ee\u9898\u5f00\u59cb\u3002<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>if<\/span> __name__ == '__main__'<\/span>:  <\/span>\n\tquestion = \"Who are you?\"<\/span>  <\/span>\n\tquery_llm(question)<\/span>\n<\/code><\/pre>\n
\n
\"image.png\"<\/figure>\n<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>if<\/span> __name__ == '__main__'<\/span>:  <\/span>\n\tquestion = \"What is 2+2?\"<\/span>  <\/span>\n\tquery_llm(question)<\/span>\n<\/code><\/pre>\n
\n
\"image.png\"<\/figure>\n<\/p>\n
<\/div>
python<\/span>
\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div>question = \"I need chocolate ice-cream recipe\"<\/span>  <\/span>\nprint<\/span>(llm_chain.invoke({'question'<\/span>: question})['text'<\/span>])<\/span>\n<\/code><\/pre>\n
\n
\"image.png\"<\/figure>\n<\/p>\n
\u540e\u7eed\u6b65\u9aa4<\/h2>\n
\u6211\u4eec\u9488\u5bf9\u7279\u5b9a\u6848\u4f8b\u7684\u7b80\u5355\u804a\u5929\u673a\u5668\u4eba\u73b0\u5df2\u51c6\u5907\u5c31\u7eea\u3002\u5728\u4e0b\u4e00\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u91cd\u70b9\u4ecb\u7ecd\u5982\u4f55\u5c06\u5386\u53f2\u8bb0\u5f55\u7ec4\u4ef6\u96c6\u6210\u5230\u673a\u5668\u4eba\u4e2d\uff0c\u4ee5\u4fbf\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u7c7b\u4f3c\u4e8e\u5bf9\u8bdd\u6d41\uff0c\u800c\u4e0d\u662f\u72ec\u7acb\u7684\u67e5\u8be2\uff0c\u4ee5\u53ca\u521b\u5efa\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>","protected":false},"excerpt":{"rendered":"
\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 LangChain \u548c OpenAI \u521b\u5efa\u4e00\u4e2a\u9488\u5bf9\u7279\u5b9a\u6848\u4f8b\u6784\u5efa\u7684\u804a\u5929\u673a\u5668\u4eba\u3002\u5982\u679c\u60a8\u521a\u521a\u4e86\u89e3LLM\u6216\u5bf9\u5b83\u77e5\u4e4b\u751a\u5c11\uff0c\u90a3\u4e48\u60a8\u6765\u5bf9\u5730\u65b9\u4e86\u3002\u672c\u6587\u5bf9\u4e8e\u521d\u5b66\u8005\u4e5f\u662f\u6613\u4e8e\u4e86\u89e3\u3002<\/p>\n","protected":false},"author":1,"featured_media":11375,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_title":"","rank_math_description":"","rank_math_focus_keyword":"","views":"3","footnotes":""},"categories":[3],"tags":[126,127,128,129,136],"collection":[],"class_list":["post-1599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fenlei2","tag-gpt","tag-ai","tag-128","tag-129","tag-136"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1599","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/comments?post=1599"}],"version-history":[{"count":0,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1599\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media\/11375"}],"wp:attachment":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media?parent=1599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/categories?post=1599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/tags?post=1599"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/collection?post=1599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}