{"id":1230,"date":"2024-04-27T13:31:43","date_gmt":"2024-04-27T13:31:43","guid":{"rendered":"https:\/\/www.nicekj.com\/?p=1230"},"modified":"2024-04-27T13:33:05","modified_gmt":"2024-04-27T13:33:05","slug":"langchainxinshouwanquanzhinan","status":"publish","type":"post","link":"https:\/\/www.nicekj.com\/langchainxinshouwanquanzhinan.html","title":{"rendered":"Langchain \u65b0\u624b\u5b8c\u5168\u6307\u5357"},"content":{"rendered":"<p>Langchain \u53ef\u80fd\u662f\u76ee\u524d\u5728 AI \u9886\u57df\u4e2d\u6700\u70ed\u95e8\u7684\u4e8b\u7269\u4e4b\u4e00\uff0c\u4ec5\u6b21\u4e8e\u5411\u91cf\u6570\u636e\u5e93\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/b3a92768d613a4e57a84cbf5c4c68800.png\" alt=\"langchainwithhuggingface.png\" \/><\/figure>\n<\/p>\n<p>\u5b83\u662f\u4e00\u4e2a\u6846\u67b6\uff0c\u7528\u4e8e\u5728\u5927\u578b\u8bed\u8a00\u6a21\u578b\u4e0a\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982 GPT\u3001LLama\u3001Hugging Face \u6a21\u578b\u7b49\u3002<\/p>\n<p>\u5b83\u6700\u521d\u662f\u4e00\u4e2a Python \u5305\uff0c\u4f46\u73b0\u5728\u4e5f\u6709\u4e00\u4e2a TypeScript \u7248\u672c\uff0c\u5728\u529f\u80fd\u4e0a\u9010\u6e10\u8d76\u4e0a\uff0c\u5e76\u4e14\u8fd8\u6709\u4e00\u4e2a\u521a\u521a\u5f00\u59cb\u7684 Ruby \u7248\u672c\u3002<\/p>\n<h3 data-id=\"heading-0\">\u4e3a\u4ec0\u4e48\u9700\u8981 Langchain\uff1f<\/h3>\n<p>\u4f46\u662f\uff0c\u4e3a\u4ec0\u4e48\u9996\u5148\u9700\u8981\u5b83\u5462\uff1f\u6211\u4eec\u662f\u5426\u53ef\u4ee5\u7b80\u5355\u5730\u53d1\u9001\u4e00\u4e2a API \u8bf7\u6c42\u6216\u6a21\u578b\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u7ed3\u675f\u4e86\uff1f\u4f60\u662f\u5bf9\u7684\uff0c\u5bf9\u4e8e\u7b80\u5355\u7684\u5e94\u7528\u7a0b\u5e8f\u8fd9\u6837\u505a\u662f\u53ef\u884c\u7684\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u4e00\u65e6\u60a8\u5f00\u59cb\u589e\u52a0\u590d\u6742\u6027\uff0c\u6bd4\u5982\u5c06\u8bed\u8a00\u6a21\u578b\u4e0e\u60a8\u81ea\u5df1\u7684\u6570\u636e\uff08\u5982 Google Analytics\u3001Stripe\u3001SQL\u3001PDF\u3001CSV \u7b49\uff09\u8fde\u63a5\u8d77\u6765\uff0c\u6216\u8005\u4f7f\u8bed\u8a00\u6a21\u578b\u6267\u884c\u4e00\u4e9b\u64cd\u4f5c\uff0c\u6bd4\u5982\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u3001\u641c\u7d22\u7f51\u7edc\u6216\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c\u4ee3\u7801\uff0c\u4e8b\u60c5\u5c31\u4f1a\u53d8\u5f97\u6df7\u4e71\u548c\u91cd\u590d\u3002<\/p>\n<p><img decoding=\"async\" alt=\"\u8f6c\u5b58\u5931\u8d25\uff0c\u5efa\u8bae\u76f4\u63a5\u4e0a\u4f20\u56fe\u7247\u6587\u4ef6\" src=\"\" loading=\"lazy\" class=\"medium-zoom-image\"><\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/dfacb5876d8380bcf85cec2cfa35c1a7.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181142.png\" \/><\/figure>\n\nLangChain \u901a\u8fc7\u7ec4\u4ef6\u63d0\u4f9b\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u65b9\u6cd5\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6587\u6863\u52a0\u8f7d\u5668\u4ece PDF\u3001Stripe \u7b49\u6765\u6e90\u52a0\u8f7d\u6570\u636e\uff0c\u7136\u540e\u5728\u5b58\u50a8\u5728\u5411\u91cf\u6570\u636e\u5e93\u4e2d\u4e4b\u524d\uff0c\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u6587\u672c\u5206\u5272\u5668\u5c06\u5176\u5206\u5757\u3002\u5728\u8fd0\u884c\u65f6\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u6ce8\u5165\u5230\u63d0\u793a\u6a21\u677f\u4e2d\uff0c\u7136\u540e\u4f5c\u4e3a\u8f93\u5165\u53d1\u9001\u7ed9\u6a21\u578b\u3002\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u6267\u884c\u4e00\u4e9b\u64cd\u4f5c\uff0c\u4f8b\u5982\u4f7f\u7528\u8f93\u51fa\u5185\u5bb9\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u3002<\/p>\n<p><img decoding=\"async\" alt=\"\u8f6c\u5b58\u5931\u8d25\uff0c\u5efa\u8bae\u76f4\u63a5\u4e0a\u4f20\u56fe\u7247\u6587\u4ef6\" src=\"\" loading=\"lazy\" class=\"medium-zoom-image\"><\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/15e8533ed482d83a16d9dc419e67dd58.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181307.png\" \/><\/figure>\n\n\u5b9e\u9645\u4e0a\uff0c\u8fd9\u4e9b <strong>\u62bd\u8c61<\/strong> \u610f\u5473\u7740\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5207\u6362\u5230\u53e6\u4e00\u4e2a\u8bed\u8a00\u6a21\u578b\uff0c\u4ee5\u8282\u7ea6\u6210\u672c\u6216\u4eab\u53d7\u5176\u4ed6\u529f\u80fd\uff0c\u6d4b\u8bd5\u53e6\u4e00\u4e2a\u5411\u91cf\u6570\u636e\u5e93\u7684\u529f\u80fd\uff0c\u6216\u8005\u6444\u53d6\u53e6\u4e00\u4e2a\u6570\u636e\u6e90\uff0c\u53ea\u9700\u51e0\u884c\u4ee3\u7801\u5373\u53ef\u5b9e\u73b0\u3002\u94fe\uff08chains\uff09\u662f\u5b9e\u73b0\u8fd9\u4e00\u9b54\u6cd5\u7684\u65b9\u5f0f\uff0c\u6211\u4eec\u5c06\u7ec4\u4ef6\u94fe\u63a5\u5728\u4e00\u8d77\uff0c\u4ee5\u5b8c\u6210\u7279\u5b9a\u4efb\u52a1\u3002\u800c\u4ee3\u7406\uff08agents\uff09\u5219\u66f4\u52a0\u62bd\u8c61\uff0c\u9996\u5148\u8003\u8651\u4f7f\u7528\u8bed\u8a00\u6a21\u578b\u6765\u601d\u8003\u5b83\u4eec\u9700\u8981\u505a\u4ec0\u4e48\uff0c\u7136\u540e\u4f7f\u7528\u5de5\u5177\u7b49\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5bf9\u5c06\u8bed\u8a00\u6a21\u578b\u4e0e\u81ea\u5df1\u7684\u6570\u636e\u548c\u5916\u90e8\u4e16\u754c\u8fde\u63a5\u7684\u5f3a\u5927\u4e4b\u5904\u611f\u5174\u8da3\uff0c\u53ef\u4ee5\u67e5\u770b\u4e0e LangChain \u53d1\u5e03\u65f6\u95f4\u76f8\u8fd1\u7684\u7814\u7a76\u8bba\u6587\uff0c\u4f8b\u5982 Self-Ask\u3001With Search \u548c ReAct\u3002<\/p>\n<h2 data-id=\"heading-1\">\u65b0\u624b\u5e94\u8be5\u4e86\u89e3\u54ea\u4e9b\u6a21\u5757\uff1f<\/h2>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u6765\u770b\u770b\u5e55\u540e\u7684\u771f\u5b9e\u60c5\u51b5\u3002\u76ee\u524d\u6709\u4e03\u4e2a\u6a21\u5757\u5728 LangChain \u4e2d\u63d0\u4f9b\uff0c\u65b0\u624b\u5e94\u8be5\u4e86\u89e3\u8fd9\u4e9b\u6a21\u5757\uff0c\u5305\u62ec\u6a21\u578b\uff08models\uff09\u3001\u63d0\u793a\uff08prompts\uff09\u3001\u7d22\u5f15\uff08indexes\uff09\u3001\u5185\u5b58\uff08memory\uff09\u3001\u94fe\uff08chains\uff09\u548c\u4ee3\u7406\uff08agents\uff09\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/40c07ef56d97f7e927abbec248dd3ba0.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181255.png\" \/><\/figure>\n<\/p>\n<h3 data-id=\"heading-2\">\u6838\u5fc3\u6a21\u5757\u7684\u6982\u8ff0<\/h3>\n<p>\u6a21\u578b\u5728\u9ad8\u5c42\u6b21\u4e0a\u6709\u4e24\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6a21\u578b\uff1a\u8bed\u8a00\u6a21\u578b\uff08language models\uff09\u548c\u6587\u672c\u5d4c\u5165\u6a21\u578b\uff08text embedding models\uff09\u3002\u5d4c\u5165\u6a21\u578b\u5c06\u6587\u672c\u8f6c\u6362\u4e3a\u6570\u5b57\u6570\u7ec4\uff0c\u7136\u540e\u6211\u4eec\u53ef\u4ee5\u5c06\u6587\u672c\u89c6\u4e3a\u5411\u91cf\u7a7a\u95f4\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/a188e3a268fbed390fee3de95a61b6b6.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181318.png\" \/><\/figure>\n\n\u5728\u8fd9\u4e2a\u56fe\u50cf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5728\u4e00\u4e2a\u4e8c\u7ef4\u7a7a\u95f4\u4e2d\uff0c\u201cman\u201d\u662f\u201cking\u201d\uff0c\u201cwoman\u201d\u662f\u201cqueen\u201d\uff0c\u5b83\u4eec\u4ee3\u8868\u4e0d\u540c\u7684\u4e8b\u7269\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u4e00\u79cd\u6a21\u5f0f\u3002\u8fd9\u4f7f\u5f97\u8bed\u4e49\u641c\u7d22\u6210\u4e3a\u53ef\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5411\u91cf\u7a7a\u95f4\u4e2d\u5bfb\u627e\u6700\u76f8\u4f3c\u7684\u6587\u672c\u7247\u6bb5\uff0c\u4ee5\u6ee1\u8db3\u7ed9\u5b9a\u7684\u8bba\u70b9\u3002\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/89c8cb6115c8b467bf0006d8bc317b51.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181333.png\" \/><\/figure>\n<\/p>\n<p>\u4f8b\u5982\uff0cOpenAI \u7684\u6587\u672c\u5d4c\u5165\u6a21\u578b\u53ef\u4ee5\u7cbe\u786e\u5730\u5d4c\u5165\u5927\u6bb5\u6587\u672c\uff0c\u5177\u4f53\u800c\u8a00\uff0c8100 \u4e2a\u6807\u8bb0\uff0c\u6839\u636e\u5b83\u4eec\u7684\u8bcd\u5bf9\u6807\u8bb0\u6bd4\u4f8b 0.75\uff0c\u5927\u7ea6\u53ef\u4ee5\u5904\u7406 6143 \u4e2a\u5355\u8bcd\u3002\u5b83\u8f93\u51fa 1536 \u7ef4\u7684\u5411\u91cf\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/9a103ea1574590b13a6b2bdd86f9a0cd.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181406.png\" \/><\/figure>\n<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 LangChain \u4e0e\u591a\u4e2a\u5d4c\u5165\u63d0\u4f9b\u8005\u8fdb\u884c\u63a5\u53e3\u4ea4\u4e92\uff0c\u4f8b\u5982 OpenAI \u548c Cohere \u7684 API\uff0c\u4f46\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 Hugging Faces \u7684\u5f00\u6e90\u5d4c\u5165\u5728\u672c\u5730\u8fd0\u884c\uff0c\u4ee5\u8fbe\u5230 <strong>\u514d\u8d39\u548c\u6570\u636e\u9690\u79c1<\/strong> \u7684\u76ee\u7684\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/aaa1c5f1fdc1483ececede2a2c79d7c1.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181431.png\" \/><\/figure>\n\n\u73b0\u5728\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ec5\u56db\u884c\u4ee3\u7801\u5728\u81ea\u5df1\u7684\u8ba1\u7b97\u673a\u4e0a\u521b\u5efa\u81ea\u5df1\u7684\u5d4c\u5165\u3002\u4f46\u662f\uff0c\u7ef4\u5ea6\u6570\u91cf\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\uff0c\u5d4c\u5165\u7684\u8d28\u91cf\u53ef\u80fd\u4f1a\u8f83\u4f4e\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u68c0\u7d22\u4e0d\u592a\u51c6\u786e\u3002<\/p>\n<h2 data-id=\"heading-3\">LLMs \u548c Chat Models<\/h2>\n<p>\u63a5\u4e0b\u6765\u662f\u8bed\u8a00\u6a21\u578b\uff0c\u5b83\u6709\u4e24\u79cd\u4e0d\u540c\u7684\u5b50\u7c7b\u578b\uff1aLLMs \u548c Chat Models\u3002LLMs \u5c01\u88c5\u4e86\u63a5\u53d7\u6587\u672c\u8f93\u5165\u5e76\u8fd4\u56de\u6587\u672c\u8f93\u51fa\u7684 API\uff0c\u800c Chat Models \u5c01\u88c5\u4e86\u63a5\u53d7\u804a\u5929\u6d88\u606f\u8f93\u5165\u5e76\u8fd4\u56de\u804a\u5929\u6d88\u606f\u8f93\u51fa\u7684\u6a21\u578b\u3002\u5c3d\u7ba1\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7ec6\u5fae\u5dee\u522b\uff0c\u4f46\u4f7f\u7528\u5b83\u4eec\u7684\u63a5\u53e3\u662f\u76f8\u540c\u7684\u3002\u6211\u4eec\u53ef\u4ee5\u5bfc\u5165\u8fd9\u4e24\u4e2a\u7c7b\uff0c\u5b9e\u4f8b\u5316\u5b83\u4eec\uff0c\u7136\u540e\u5728\u8fd9\u4e24\u4e2a\u7c7b\u4e0a\u4f7f\u7528 predict \u51fd\u6570\u5e76\u89c2\u5bdf\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u3002\u4f46\u662f\uff0c\u60a8\u53ef\u80fd\u4e0d\u4f1a\u76f4\u63a5\u5c06\u6587\u672c\u4f20\u9012\u7ed9\u6a21\u578b\uff0c\u800c\u662f\u4f7f\u7528\u63d0\u793a\uff08prompts\uff09\u3002<\/p>\n<h2 data-id=\"heading-4\">\u63d0\u793a\uff08prompts\uff09<\/h2>\n<p>\u63d0\u793a\uff08prompts\uff09\u662f\u6307\u6a21\u578b\u7684\u8f93\u5165\u3002\u6211\u4eec\u901a\u5e38\u5e0c\u671b\u5177\u6709\u6bd4\u786c\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u66f4\u7075\u6d3b\u7684\u65b9\u5f0f\uff0cLangChain \u63d0\u4f9b\u4e86 Prompt Template \u7c7b\u6765\u6784\u5efa\u4f7f\u7528\u591a\u4e2a\u503c\u7684\u63d0\u793a\u3002\u63d0\u793a\u7684\u91cd\u8981\u6982\u5ff5\u5305\u62ec\u63d0\u793a\u6a21\u677f\u3001\u8f93\u51fa\u89e3\u6790\u5668\u3001\u793a\u4f8b\u9009\u62e9\u5668\u548c\u804a\u5929\u63d0\u793a\u6a21\u677f\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/9276b7ce264f99e11d23518a44c694dd.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181517.png\" \/><\/figure>\n<\/p>\n<h3 data-id=\"heading-5\">\u63d0\u793a\u6a21\u677f\uff08PromptTemplate\uff09<\/h3>\n<p>\u63d0\u793a\u6a21\u677f\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u9996\u5148\u9700\u8981\u521b\u5efa\u4e00\u4e2a Prompt Template \u5bf9\u8c61\u3002\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u4e00\u79cd\u662f\u5bfc\u5165 Prompt Template\uff0c\u7136\u540e\u4f7f\u7528\u6784\u9020\u51fd\u6570\u6307\u5b9a\u4e00\u4e2a\u5305\u542b\u8f93\u5165\u53d8\u91cf\u7684\u6570\u7ec4\uff0c\u5e76\u5c06\u5b83\u4eec\u653e\u5728\u82b1\u62ec\u53f7\u4e2d\u7684\u6a21\u677f\u5b57\u7b26\u4e32\u4e2d\u3002\u5982\u679c\u60a8\u611f\u5230\u9ebb\u70e6\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u6a21\u677f\u7684\u8f85\u52a9\u65b9\u6cd5\uff0c\u4ee5\u4fbf\u4e0d\u5fc5\u663e\u5f0f\u6307\u5b9a\u8f93\u5165\u53d8\u91cf\u3002<\/p>\n<p>\u65e0\u8bba\u54ea\u79cd\u60c5\u51b5\uff0c\u60a8\u90fd\u53ef\u4ee5\u901a\u8fc7\u544a\u8bc9\u5b83\u8981\u66ff\u6362\u5360\u4f4d\u7b26\u7684\u503c\u6765\u683c\u5f0f\u5316\u63d0\u793a\u3002<\/p>\n<p>\u5728\u5185\u90e8\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5b83\u4f7f\u7528 F \u5b57\u7b26\u4e32\u6765\u683c\u5f0f\u5316\u63d0\u793a\uff0c\u4f46\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528 Ginger 2\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u4f7f\u7528 F \u5b57\u7b26\u4e32\u5462\uff1f\u63d0\u793a\u63d0\u9ad8\u4e86\u53ef\u8bfb\u6027\uff0c\u4e0e\u5176\u4f59\u751f\u6001\u7cfb\u7edf\u5f88\u597d\u5730\u914d\u5408\uff0c\u5e76\u652f\u6301\u5e38\u89c1\u7528\u4f8b\uff0c\u5982 Few Shot Learning \u6216\u8f93\u51fa\u89e3\u6790\u3002<\/p>\n<p>Few Shot Learning \u610f\u5473\u7740\u6211\u4eec\u7ed9\u63d0\u793a\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u6765\u6307\u5bfc\u5176\u8f93\u51fa\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/90c002bbbb81d1d55c441adb8398ce9b.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181613.png\" \/><\/figure>\n<\/p>\n<p>\u8ba9\u6211\u4eec\u770b\u770b\u5982\u4f55\u505a\u5230\u8fd9\u4e00\u70b9?\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u51e0\u4e2a\u793a\u4f8b\u7684\u5217\u8868\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain <span class=\"hljs-keyword\">import<\/span> PromptTemplate, FewShotPromptTemplate<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">examples = [<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">    {<span class=\"hljs-string\">\"word\"<\/span>: <span class=\"hljs-string\">\"happy\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>: <span class=\"hljs-string\">\"sad\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">    {<span class=\"hljs-string\">\"word\"<\/span>: <span class=\"hljs-string\">\"tall\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>: <span class=\"hljs-string\">\"short\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><\/span>\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u6211\u4eec\u6307\u5b9a\u7528\u4e8e\u683c\u5f0f\u5316\u63d0\u4f9b\u7684\u6bcf\u4e2a\u793a\u4f8b\u7684\u6a21\u677f\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">example_formatter_template = <span class=\"hljs-string\">\"\"\"Word: {word}<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">Antonym: {antonym}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">\"\"\"<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">example_prompt = PromptTemplate(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">    input_variables=[<span class=\"hljs-string\">\"word\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>],<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">    template=example_formatter_template,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"><span class=\"hljs-string\">\"\"\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><\/span>\n<\/code><\/pre>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u521b\u5efa Few Shot Prompt Template \u5bf9\u8c61\uff0c\u4f20\u5165\u793a\u4f8b\u3001\u793a\u4f8b\u683c\u5f0f\u5316\u5668\u3001\u524d\u7f00\u3001\u547d\u4ee4\u548c\u540e\u7f00\uff0c\u8fd9\u4e9b\u90fd\u65e8\u5728\u6307\u5bfc LLM \u7684\u8f93\u51fa\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u63d0\u4f9b\u8f93\u5165\u53d8\u91cf <code>examples<\/code>, <code>example_prompt<\/code> \u548c\u5206\u9694\u7b26 <code>example_separator=\"n\"<\/code>\uff0c\u7528\u4e8e\u5c06\u793a\u4f8b\u4e0e\u524d\u7f00 <code>prefix<\/code> \u548c\u540e\u7f00 <code>suffix<\/code> \u5206\u5f00\u3002\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u751f\u6210\u4e00\u4e2a\u63d0\u793a\uff0c\u5b83\u770b\u8d77\u6765\u50cf\u8fd9\u6837\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">few_shot_prompt = FewShotPromptTemplate(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">    examples=examples,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">    example_prompt=example_prompt,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">    prefix=<span class=\"hljs-string\">\"Give the antonym of every inputn\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">    suffix=<span class=\"hljs-string\">\"Word: {input}nAntonym: \"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">    input_variables=[<span class=\"hljs-string\">\"input\"<\/span>],<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">    example_separator=<span class=\"hljs-string\">\"n\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><span class=\"hljs-built_in\">print<\/span>(few_shot_prompt.<span class=\"hljs-built_in\">format<\/span>(<span class=\"hljs-built_in\">input<\/span>=<span class=\"hljs-string\">\"big\"<\/span>))<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u662f\u4e00\u79cd\u975e\u5e38\u6709\u7528\u7684\u8303\u4f8b\uff0c\u53ef\u4ee5\u63a7\u5236 LLM \u7684\u8f93\u51fa\u5e76\u5f15\u5bfc\u5176\u54cd\u5e94\u3002<\/p>\n<h3 data-id=\"heading-6\">\u8f93\u51fa\u89e3\u6790\u5668\uff08output_parsers\uff09<\/h3>\n<p>\u7c7b\u4f3c\u5730\uff0c\u6211\u4eec\u53ef\u80fd\u60f3\u8981\u4f7f\u7528\u8f93\u51fa\u89e3\u6790\u5668\uff0c\u5b83\u4f1a\u81ea\u52a8\u5c06\u8bed\u8a00\u6a21\u578b\u7684\u8f93\u51fa\u89e3\u6790\u4e3a\u5bf9\u8c61\u3002\u8fd9\u9700\u8981\u66f4\u590d\u6742\u4e00\u4e9b\uff0c\u4f46\u975e\u5e38\u6709\u7528\uff0c\u53ef\u4ee5\u5c06 LLM \u7684\u968f\u673a\u8f93\u51fa\u7ed3\u6784\u5316\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/9edc9a83a70200b8dbc1381625c63f4d.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181657.png\" \/><\/figure>\n<\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u4f7f\u7528 OpenAI \u521b\u5efa\u7b11\u8bdd\u5bf9\u8c61\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u6211\u4eec\u7684 Joke \u7c7b\u4ee5\u66f4\u5177\u4f53\u5730\u8bf4\u660e\u7b11\u8bdd\u7684\u8bbe\u7f6e\u548c\u7ed3\u5c3e\u3002\u6211\u4eec\u6dfb\u52a0\u63cf\u8ff0\u4ee5\u5e2e\u52a9\u8bed\u8a00\u6a21\u578b\u7406\u89e3\u5b83\u4eec\u7684\u542b\u4e49\uff0c\u7136\u540e\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e2a\u89e3\u6790\u5668\uff0c\u544a\u8bc9\u5b83\u4f7f\u7528\u6211\u4eec\u7684 Joke \u7c7b\u8fdb\u884c\u89e3\u6790\u3002<\/p>\n<p>\u6211\u4eec\u4f7f\u7528\u6700\u5f3a\u5927\u4e14\u63a8\u8350\u7684 Pydantic \u8f93\u51fa\u89e3\u6790\u5668\uff0c\u7136\u540e\u521b\u5efa\u6211\u4eec\u7684\u63d0\u793a\u6a21\u677f\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain.prompts <span class=\"hljs-keyword\">import<\/span> PromptTemplate<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> langchain.output_parsers <span class=\"hljs-keyword\">import<\/span> PydanticOutputParser<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-keyword\">from<\/span> pydantic <span class=\"hljs-keyword\">import<\/span> BaseModel, Field<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Joke<\/span>(<span class=\"hljs-title class_ inherited__\">BaseModel<\/span>):<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">    setup: <span class=\"hljs-built_in\">str<\/span> = Field(description=<span class=\"hljs-string\">\"question to set up a joke\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">    punchline: <span class=\"hljs-built_in\">str<\/span> = Field(description=<span class=\"hljs-string\">\"answer to resolve the joke\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">parser = PydanticOutputParser(pydantic_object=Joke)<\/span>\n<\/code><\/pre>\n<p>\u8ba9\u6211\u4eec\u4f20\u9012\u6a21\u677f\u5b57\u7b26\u4e32\u548c\u8f93\u5165\u53d8\u91cf\uff0c\u5e76\u4f7f\u7528\u90e8\u5206\u53d8\u91cf\u5b57\u6bb5\u5c06\u89e3\u6790\u6307\u4ee4\u6ce8\u5165\u5230\u63d0\u793a\u6a21\u677f\u4e2d\u3002\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u8981\u6c42 LLM \u7ed9\u6211\u4eec\u8bb2\u4e00\u4e2a\u7b11\u8bdd\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u5df2\u7ecf\u51c6\u5907\u597d\u53d1\u9001\u5b83\u7ed9 OpenAI \u7684\u64cd\u4f5c\u662f\u8fd9\u6837\u7684\uff1a\u9996\u5148\u4ece\u6211\u4eec\u7684.env \u6587\u4ef6\u4e2d\u52a0\u8f7d OpenAI \u7684 API \u5bc6\u94a5\uff0c\u7136\u540e\u5b9e\u4f8b\u5316\u6a21\u578b\uff0c\u8c03\u7528\u5176\u8c03\u7528\u65b9\u6cd5\uff0c\u5e76\u4f7f\u7528\u6211\u4eec\u5b9e\u4f8b\u5316\u7684\u89e3\u6790\u5668\u89e3\u6790\u6a21\u578b\u7684\u8f93\u51fa\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain.llms <span class=\"hljs-keyword\">import<\/span> OpenAI<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> dotenv <span class=\"hljs-keyword\">import<\/span> load_dotenv<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">load_dotenv()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">model = OpenAI(model_name=<span class=\"hljs-string\">\"text-davinci-003\"<\/span>, temperature=<span class=\"hljs-number\">0.0<\/span>)<\/span>\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u6211\u4eec\u5c31\u62e5\u6709\u4e86\u6211\u4eec\u5b9a\u4e49\u4e86\u8bbe\u7f6e\u548c\u7ed3\u5c3e\u7684\u7b11\u8bdd\u5bf9\u8c61\u3002\u751f\u6210\u7684\u63d0\u793a\u975e\u5e38\u590d\u6742\uff0c\u5efa\u8bae\u67e5\u770b GitHub \u4ee5\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">prompt = PromptTemplate(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">    template=<span class=\"hljs-string\">\"Answer the user query.n{format_instructions}n{query}n\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">    input_variables=[<span class=\"hljs-string\">\"query\"<\/span>],<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">    partial_variables={<span class=\"hljs-string\">\"format_instructions\"<\/span>: parser.get_format_instructions()},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">joke_query = <span class=\"hljs-string\">\"Tell me a joke.\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">formatted_prompt = prompt.format_prompt(query=joke_query)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><span class=\"hljs-built_in\">print<\/span>(formatted_prompt.to_string())<\/span>\n<\/code><\/pre>\n<p>\u6253\u5370\u7684\u7ed3\u679c\u662f\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">text<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-text code-block-extension-codeShowNum\" lang=\"text\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">Answer the user query.<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">The output should be formatted as a JSON instance <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">that conforms to the JSON schema below.<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">As an example, for the schema<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">{<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">    \"properties\": {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">        \"foo\": {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">            \"title\": \"Foo\",<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">            \"description\": \"a list of strings\",<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">            \"type\": \"array\",<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">            \"items\": {<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">                \"type\": \"string\"<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">            }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">        }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">    },<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\">    \"required\": [<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">        \"foo\"<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">    ]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">} <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\">the object {\"foo\": [\"bar\", \"baz\"]} is a well-formatted <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">instance of the schema. <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\">The object {\"properties\": {\"foo\": [\"bar\", \"baz\"]}} is <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">not well-formatted.<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\">Here is the output schema:<\/span>\n<\/code><\/pre>\n<p>{\n&#8220;properties&#8221;: {\n&#8220;setup&#8221;: {\n&#8220;title&#8221;: &#8220;Setup&#8221;,\n&#8220;description&#8221;: &#8220;question to set up a joke&#8221;,\n&#8220;type&#8221;: &#8220;string&#8221;\n},\n&#8220;punchline&#8221;: {\n&#8220;title&#8221;: &#8220;Punchline&#8221;,\n&#8220;description&#8221;: &#8220;answer to resolve the joke&#8221;,\n&#8220;type&#8221;: &#8220;string&#8221;\n}\n},\n&#8220;required&#8221;: [\n&#8220;setup&#8221;,\n&#8220;punchline&#8221;\n]\n}<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">vbnet<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-vbnet code-block-extension-codeShowNum\" lang=\"vbnet\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">Tell <span class=\"hljs-keyword\">me<\/span> a joke.<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-string\">\"\"\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><\/span>\n<\/code><\/pre>\n<p>\u6211\u4eec\u7ed9 model \u4f20\u5165 prompt \u6a21\u677f\uff0c\u5e76\u4e14\u7528\u8f93\u51fa\u89e3\u6790\u5668\u89e3\u6790\u7ed3\u679c\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">output = model(formatted_prompt.to_string())<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">parsed_joke = parser.parse(output)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-built_in\">print<\/span>(parsed_joke)<\/span>\n<\/code><\/pre>\n<p>\u6211\u4eec\u4e4b\u524d\u8bb2\u8fc7 Few Shot Prompt \u5b66\u4e60\uff0c\u6211\u4eec\u4f20\u9012\u4e00\u4e9b\u793a\u4f8b\u6765\u663e\u793a\u6a21\u578b\u5bf9\u67d0\u79cd\u7c7b\u578b\u7684\u67e5\u8be2\u7684\u9884\u671f\u7b54\u6848\u3002\u6211\u4eec\u53ef\u80fd\u6709\u8bb8\u591a\u8fd9\u6837\u7684\u793a\u4f8b\uff0c\u6211\u4eec\u4e0d\u53ef\u80fd\u5168\u90e8\u9002\u5e94\u5b83\u4eec\u3002\u800c\u4e14\uff0c\u8fd9\u53ef\u80fd\u5f88\u5feb\u5c31\u4f1a\u53d8\u5f97\u975e\u5e38\u6602\u8d35\u3002\u8fd9\u5c31\u662f\u793a\u4f8b\u9009\u62e9\u5668\u53d1\u6325\u4f5c\u7528\u7684\u5730\u65b9\u3002<\/p>\n<h3 data-id=\"heading-7\">\u793a\u4f8b\u9009\u62e9\u5668\uff08example_selector\uff09<\/h3>\n<p>\u4e3a\u4e86\u4fdd\u6301\u63d0\u793a\u7684\u6210\u672c\u76f8\u5bf9\u6052\u5b9a\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u57fa\u4e8e\u957f\u5ea6\u7684\u793a\u4f8b\u9009\u62e9\u5668 <code>LengthBasedExampleSelector<\/code>\u3002\u5c31\u50cf\u4ee5\u524d\u4e00\u6837\uff0c\u6211\u4eec\u6307\u5b9a\u4e00\u4e2a\u793a\u4f8b\u63d0\u793a\u3002\u8fd9\u5b9a\u4e49\u4e86\u6bcf\u4e2a\u793a\u4f8b\u5c06\u5982\u4f55\u683c\u5f0f\u5316\u3002\u6211\u4eec\u7b56\u5c55\u4e00\u4e2a\u9009\u62e9\u5668\uff0c\u4f20\u5165\u793a\u4f8b\uff0c\u7136\u540e\u662f\u6700\u5927\u957f\u5ea6\u3002<\/p>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u957f\u5ea6\u6307\u7684\u662f\u683c\u5f0f\u5316\u5668\u793a\u4f8b\u90e8\u5206\u7684\u63d0\u793a\u4f7f\u7528\u7684\u5355\u8bcd\u548c\u65b0\u884c\u7684\u6570\u91cf <code>max_length<\/code>\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain.prompts <span class=\"hljs-keyword\">import<\/span> PromptTemplate<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> langchain.prompts <span class=\"hljs-keyword\">import<\/span> FewShotPromptTemplate<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-keyword\">from<\/span> langchain.prompts.example_selector <span class=\"hljs-keyword\">import<\/span> LengthBasedExampleSelector<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">examples = [<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">    {<span class=\"hljs-string\">\"word\"<\/span>: <span class=\"hljs-string\">\"happy\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>: <span class=\"hljs-string\">\"sad\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">    {<span class=\"hljs-string\">\"word\"<\/span>: <span class=\"hljs-string\">\"tall\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>: <span class=\"hljs-string\">\"short\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">    {<span class=\"hljs-string\">\"word\"<\/span>: <span class=\"hljs-string\">\"energetic\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>: <span class=\"hljs-string\">\"lethargic\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">    {<span class=\"hljs-string\">\"word\"<\/span>: <span class=\"hljs-string\">\"sunny\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>: <span class=\"hljs-string\">\"gloomy\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">    {<span class=\"hljs-string\">\"word\"<\/span>: <span class=\"hljs-string\">\"windy\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>: <span class=\"hljs-string\">\"calm\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">example_prompt = PromptTemplate(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">    input_variables=[<span class=\"hljs-string\">\"word\"<\/span>, <span class=\"hljs-string\">\"antonym\"<\/span>],<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">    template=<span class=\"hljs-string\">\"Word: {word}nAntonym: {antonym}\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">example_selector = LengthBasedExampleSelector(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">    examples=examples, <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\">    example_prompt=example_prompt, <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\">    max_length=<span class=\"hljs-number\">25<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\">dynamic_prompt = FewShotPromptTemplate(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\">    example_selector=example_selector,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\">    example_prompt=example_prompt,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"27\">    prefix=<span class=\"hljs-string\">\"Give the antonym of every input\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"28\">    suffix=<span class=\"hljs-string\">\"Word: {adjective}nAntonym:\"<\/span>, <\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"29\">    input_variables=[<span class=\"hljs-string\">\"adjective\"<\/span>],<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"30\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"31\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"32\"><span class=\"hljs-built_in\">print<\/span>(dynamic_prompt.<span class=\"hljs-built_in\">format<\/span>(adjective=<span class=\"hljs-string\">\"big\"<\/span>))<\/span>\n<\/code><\/pre>\n<p>\u90a3\u4e48\uff0c\u4e0e\u804a\u5929\u6a21\u578b\u4e92\u52a8\u5982\u4f55\u5462\uff1f\u8fd9\u5c31\u5f15\u51fa\u4e86\u6211\u4eec\u4e4b\u524d\u63d0\u5230\u7684\u804a\u5929\u63d0\u793a\u6a21\u677f\u3002\u804a\u5929\u6a21\u578b\u4ee5\u804a\u5929\u6d88\u606f\u5217\u8868\u4e3a\u8f93\u5165\u3002\u8fd9\u4e2a\u5217\u8868\u88ab\u79f0\u4e3a\u63d0\u793a\u3002<\/p>\n<p>\u5b83\u4eec\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\uff0c\u6bcf\u6761\u6d88\u606f\u90fd\u88ab\u9884\u5148\u9644\u52a0\u4e86\u4e00\u4e2a\u89d2\u8272\uff0c\u8981\u4e48\u662f AI\uff0c\u8981\u4e48\u662f\u4eba\u7c7b\uff0c\u8981\u4e48\u662f\u7cfb\u7edf\u3002\u6a21\u578b\u5e94\u7d27\u5bc6\u9075\u5faa\u7cfb\u7edf\u6d88\u606f\u7684\u6307\u793a\u3002\u4e00\u5f00\u59cb\u53ea\u6709\u4e00\u4e2a\u7cfb\u7edf\u6d88\u606f\uff0c\u6709\u65f6\u5b83\u53ef\u80fd\u542c\u8d77\u6765\u76f8\u5f53\u50ac\u7720\u3002<\/p>\n<p>\u201c\u4f60\u662f\u4e00\u4e2a\u5584\u826f\u7684\u5ba2\u670d\u4ee3\u7406\u4eba\uff0c\u5bf9\u5ba2\u6237\u7684\u95ee\u9898\u505a\u51fa\u9010\u6e10\u7684\u56de\u5e94\u201d\u2026\u2026<\/p>\n<p>\u7c7b\u4f3c\u4e8e\u8fd9\u6837\uff0c\u544a\u8bc9\u804a\u5929\u673a\u5668\u4eba\u5982\u4f55\u884c\u4e8b\u3002AI \u6d88\u606f\u662f\u6765\u81ea\u6a21\u578b\u7684\u6d88\u606f\uff0c\u4eba\u7c7b\u6d88\u606f\u662f\u6211\u4eec\u8f93\u5165\u7684\u5185\u5bb9\u3002\u89d2\u8272\u4e3a LLM \u63d0\u4f9b\u4e86\u5bf9\u8fdb\u884c\u4e2d\u7684\u5bf9\u8bdd\u7684\u66f4\u597d\u7684\u4e0a\u4e0b\u6587\u3002<\/p>\n<p>\u6a21\u578b\u548c\u63d0\u793a\u90fd\u5f88\u9177\uff0c\u6807\u51c6\u5316\u4e86\u3002<\/p>\n<h2 data-id=\"heading-8\">\u7d22\u5f15\uff08indexes\uff09<\/h2>\n<p>\u4f46\u6211\u4eec\u5982\u4f55\u4f7f\u7528\u6211\u4eec\u81ea\u5df1\u7684\u6570\u636e\u5462\uff1f\u8fd9\u5c31\u662f\u7d22\u5f15\u6a21\u5757\u6d3e\u4e0a\u7528\u573a\u7684\u5730\u65b9\u3002<\/p>\n<blockquote>\n<p>\u6570\u636e\u5c31\u662f\u65b0\u7684\u77f3\u6cb9\uff0c\u4f60\u80af\u5b9a\u53ef\u4ee5\u5728\u4efb\u4f55\u5730\u65b9\u6316\u6398\uff0c\u5e76\u627e\u5230\u5927\u91cf\u7684\u3002<\/p>\n<\/blockquote>\n<p>Langchain \u63d0\u4f9b\u4e86\u94bb\u673a\uff0c\u901a\u8fc7\u63d0\u4f9b\u6587\u6863\u52a0\u8f7d\u5668\uff0c\u6587\u6863\u662f\u4ed6\u4eec\u8bf4\u7684\u6587\u672c\u7684\u82b1\u54e8\u65b9\u5f0f\u3002\u6709\u5f88\u591a\u652f\u6301\u7684\u683c\u5f0f\u548c\u670d\u52a1\uff0c\u6bd4\u5982 CSV\u3001\u7535\u5b50\u90ae\u4ef6\u3001SQL\u3001Discord\u3001AWS S3\u3001PDF\uff0c\u7b49\u7b49\u3002\u5b83\u53ea\u9700\u8981\u4e09\u884c\u4ee3\u7801\u5c31\u53ef\u4ee5\u5bfc\u5165\u4f60\u7684\u3002\u8fd9\u5c31\u662f\u5b83\u6709\u591a\u7b80\u5355!<\/p>\n<p>\u9996\u5148\u5bfc\u5165\u52a0\u8f7d\u5668\uff0c\u7136\u540e\u6307\u5b9a\u6587\u4ef6\u8def\u5f84\uff0c\u7136\u540e\u8c03\u7528 load \u65b9\u6cd5\u3002\u8fd9\u5c06\u5728\u5185\u5b58\u4e2d\u4ee5\u6587\u672c\u5f62\u5f0f\u52a0\u8f7d PDF\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u6570\u7ec4\uff0c\u5176\u4e2d\u6bcf\u4e2a\u7d22\u5f15\u4ee3\u8868\u4e00\u4e2a\u9875\u9762\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/c66e08ac1ab92c6458343530e4b3cb43.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181943.png\" \/><\/figure>\n<\/p>\n<h3 data-id=\"heading-9\">\u6587\u672c\u5206\u5272\u5668 \uff08text_splitter\uff09<\/h3>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/97ccc224aa63ed24e7750c0ab185ff0a.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701181957.png\" \/><\/figure>\n<\/p>\n<p>\u8fd9\u5f88\u597d\uff0c\u4f46\u662f\u5f53\u6211\u4eec\u60f3\u6784\u5efa\u4e00\u4e2a\u63d0\u793a\u5e76\u5305\u542b\u8fd9\u4e9b\u9875\u9762\u4e2d\u7684\u6587\u672c\u65f6\uff0c\u5b83\u4eec\u53ef\u80fd\u592a\u5927\uff0c\u65e0\u6cd5\u5728\u6211\u4eec\u4e4b\u524d\u8c08\u8fc7\u7684\u8f93\u5165\u4ee4\u724c\u5927\u5c0f\u5185\u9002\u5e94\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6211\u4eec\u60f3\u4f7f\u7528\u6587\u672c\u5206\u5272\u5668\u5c06\u5b83\u4eec\u5207\u6210\u5757\u3002<\/p>\n<p>\u8bfb\u5b8c\u6587\u672c\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u4f8b\u5316\u4e00\u4e2a\u9012\u5f52\u5b57\u7b26\u6587\u672c\u5206\u5272\u5668 <code>RecursiveCharacterTextSplitter<\/code>\uff0c\u5e76\u6307\u5b9a\u4e00\u4e2a\u5757\u5927\u5c0f\u548c\u4e00\u4e2a\u5757\u91cd\u53e0\u3002\u6211\u4eec\u8c03\u7528 <code>create_documents<\/code> \u65b9\u6cd5\uff0c\u5e76\u5c06\u6211\u4eec\u7684\u6587\u672c\u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n<p>\u7136\u540e\u6211\u4eec\u5f97\u5230\u4e86\u4e00\u4e2a\u6587\u6863\u7684\u6570\u7ec4\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain.text_splitter <span class=\"hljs-keyword\">import<\/span> RecursiveCharacterTextSplitter<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-keyword\">with<\/span> <span class=\"hljs-built_in\">open<\/span>(<span class=\"hljs-string\">\"example_data\/state_of_the_union.txt\"<\/span>) <span class=\"hljs-keyword\">as<\/span> f:<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">    state_of_the_union = f.read()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">text_splitter = RecursiveCharacterTextSplitter(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">    chunk_size=<span class=\"hljs-number\">100<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">    chunk_overlap=<span class=\"hljs-number\">20<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">texts = text_splitter.create_documents([state_of_the_union])<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\"><span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">f\"nFirst chunk: <span class=\"hljs-subst\">{texts[<span class=\"hljs-number\">0<\/span>]}<\/span>n\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"><span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">f\"Second chunk: <span class=\"hljs-subst\">{texts[<span class=\"hljs-number\">1<\/span>]}<\/span>n\"<\/span>)<\/span>\n<\/code><\/pre>\n<p>\u73b0\u5728\u6211\u4eec\u6709\u4e86\u6587\u672c\u5757\uff0c\u6211\u4eec\u4f1a\u60f3\u8981\u5d4c\u5165\u5b83\u4eec\u5e76\u5b58\u50a8\u5b83\u4eec\uff0c\u4ee5\u4fbf\u6700\u7ec8\u4f7f\u7528\u8bed\u4e49\u641c\u7d22\u68c0\u7d22\u5b83\u4eec\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6211\u4eec\u6709\u5411\u91cf\u5b58\u50a8\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/d928f7198b87c297e0194a7dc706c479.png\" alt=\"68747470733a2f2f646c2e64726f70626f7875736572636f6e74656e742e636f6d2f732f6778696a3535393374797a727673672f53637265656e73686f74253230323032332d30342d32362532306174253230332e30362e3530253230504d2e706e67.png\" \/><\/figure>\n<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/f7f1116c929928121733024e3906fc5b.png\" alt=\"68747470733a2f2f646c2e64726f70626f7875736572636f6e74656e742e636f6d2f732f7631796675656d30693630626438382f53637265656e73686f74253230323032332d30342d32362532306174253230332e35322e3132253230504d2e706e67.png\" \/><\/figure>\n<\/p>\n<h3 data-id=\"heading-10\">\u4e0e\u5411\u91cf\u6570\u636e\u5e93\u7684\u96c6\u6210<\/h3>\n<p>\u7d22\u5f15\u6a21\u5757\u7684\u8fd9\u4e00\u90e8\u5206\u63d0\u4f9b\u4e86\u591a\u4e2a\u4e0e\u5411\u91cf\u6570\u636e\u5e93\u7684\u96c6\u6210\uff0c\u5982 pinecone\u3001redis\u3001Super Bass\u3001chroma DB \u7b49\u7b49\u3002<\/p>\n<h3 data-id=\"heading-11\">\u5411\u91cf\u7a7a\u95f4\u4e2d\u8fdb\u884c\u641c\u7d22<\/h3>\n<p>\u4e00\u65e6\u4f60\u51c6\u5907\u597d\u4e86\u4f60\u7684\u6587\u6863\uff0c\u4f60\u5c31\u4f1a\u60f3\u9009\u62e9\u4f60\u7684\u5d4c\u5165\u63d0\u4f9b\u5546\uff0c\u5e76\u4f7f\u7528\u5411\u91cf\u6570\u636e\u5e93\u52a9\u624b\u65b9\u6cd5\u5b58\u50a8\u6587\u6863\u3002<\/p>\n<p>\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u5199\u4e00\u4e2a\u95ee\u9898\uff0c\u5728\u5411\u91cf\u7a7a\u95f4\u4e2d\u8fdb\u884c\u641c\u7d22\uff0c\u627e\u51fa\u6700\u76f8\u4f3c\u7684\u7ed3\u679c <code>similarity_search<\/code>\uff0c\u8fd4\u56de\u5b83\u4eec\u7684\u6587\u672c\u3002<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> langchain.embeddings.openai <span class=\"hljs-keyword\">import<\/span> OpenAIEmbeddings<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> langchain.text_splitter <span class=\"hljs-keyword\">import<\/span> CharacterTextSplitter<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-keyword\">from<\/span> langchain.vectorstores <span class=\"hljs-keyword\">import<\/span> Chroma<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><span class=\"hljs-keyword\">with<\/span> <span class=\"hljs-built_in\">open<\/span>(<span class=\"hljs-string\">\"example_data\/state_of_the_union.txt\"<\/span>) <span class=\"hljs-keyword\">as<\/span> f:<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">    state_of_the_union = f.read()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">text_splitter = CharacterTextSplitter(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">    chunk_size=<span class=\"hljs-number\">1000<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">    chunk_overlap=<span class=\"hljs-number\">0<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\">texts = text_splitter.create_documents([state_of_the_union])<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\">embeddings = OpenAIEmbeddings()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\">docsearch = Chroma.from_texts(texts, embeddings)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\">query = <span class=\"hljs-string\">\"What did the president say about Ketanji Brown Jackson\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\">docs = docsearch.similarity_search(query)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\"><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\"><span class=\"hljs-built_in\">print<\/span>(docs[<span class=\"hljs-number\">0<\/span>].page_content)<\/span>\n<\/code><\/pre>\n<p>\u4ece\u6784\u5efa\u63d0\u793a\u5230\u7d22\u5f15\u6587\u6863\uff0c\u518d\u5230\u5728\u5411\u91cf\u7a7a\u95f4\u4e2d\u8fdb\u884c\u641c\u7d22\uff0c\u90fd\u53ef\u4ee5\u901a\u8fc7\u5bfc\u5165\u4e00\u4e2a\u6a21\u5757\u5e76\u8fd0\u884c\u51e0\u884c\u4ee3\u7801\u6765\u5b8c\u6210\u3002<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/6197e1ee215b612e8f90b95118cc2280.png\" alt=\"\u5fae\u4fe1\u622a\u56fe_20230701182104.png\" \/><\/figure>\n<\/p>\n<p>\u5e0c\u671b\u4f60\u559c\u6b22\u8fd9\u4e2a\u65c5\u7a0b\uff0c\u8ba9\u6211\u4eec\u5f00\u59cb\u6211\u4eec\u7684\u804a\u5929\u673a\u5668\u4eba\u4e4b\u65c5\u5427\uff01<\/p>\n<p>\u5982\u679c\u4f60\u6709\u4efb\u4f55\u95ee\u9898\u6216\u60f3\u8981\u67e5\u770b\u66f4\u8be6\u7ec6\u7684\u5b9e\u4f8b\uff0c\u4f60\u53ef\u4ee5\u5728\u52a0\u5165\u793e\u7fa4\u63d0\u95ee\u3002\u6211\u671f\u5f85\u7740\u4f60\u7684\u53cd\u9988\u548c\u4f60\u5728\u793e\u533a\u4e2d\u5206\u4eab\u7684\u4efb\u4f55\u521b\u65b0\u3002<\/p>\n<p>\ud83d\udd17 Links<\/p>\n<p>Source code: <a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fgithub.com%2Fedrickdch%2Flangchain-101\" target=\"_blank\" title=\"https:\/\/github.com\/edrickdch\/langchain-101\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">github.com\/edrickdch\/l\u2026<\/a><\/p>\n<p>LangChain: <a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fpython.langchain.com.cn\" target=\"_blank\" title=\"https:\/\/python.langchain.com.cn\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">python.langchain.com.cn<\/a><\/p>\n<p>Self-Ask Paper: <a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fofir.io%2Fself-ask.pdf\" target=\"_blank\" title=\"https:\/\/ofir.io\/self-ask.pdf\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">ofir.io\/self-ask.pd\u2026<\/a><\/p>\n<p>ReAct Paper: <a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Farxiv.org%2Fabs%2F2210.03629\" target=\"_blank\" title=\"https:\/\/arxiv.org\/abs\/2210.03629\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">arxiv.org\/abs\/2210.03\u2026<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Langchain \u65b0\u624b\u5b8c\u5168\u6307\u5357 Langchain \u53ef\u80fd\u662f\u76ee\u524d\u5728 AI \u9886\u57df\u4e2d\u6700\u70ed\u95e8\u7684\u4e8b\u7269\u4e4b\u4e00\uff0c\u4ec5\u6b21\u4e8e\u5411\u91cf\u6570\u636e\u5e93\u3002 \u5b83\u662f\u4e00\u4e2a\u6846\u67b6\uff0c\u7528\u4e8e\u5728\u5927\u578b\u8bed\u8a00\u6a21\u578b\u4e0a\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982 GPT\u3001LLama\u3002<\/p>\n","protected":false},"author":1,"featured_media":2679,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_title":"LangChain\uff1aAI\u5e94\u7528\u5f00\u53d1\u7684\u70ed\u95e8\u6846\u67b6 - \u5948\u65af\u79d1\u6280\u793e\u533a","rank_math_description":"LangChain \u6846\u67b6\u8be6\u89e3\uff1a\u8fde\u63a5\u5927\u578b\u8bed\u8a00\u6a21\u578b\u4e0e\u5916\u90e8\u6570\u636e\uff0c\u6784\u5efa\u66f4\u5f3a\u5927\u7684AI\u5e94\u7528\u3002\u672c\u6587\u6db5\u76d6LangChain\u6838\u5fc3\u6a21\u5757\u3001\u63d0\u793a\u5de5\u7a0b\u3001\u5411\u91cf\u6570\u636e\u5e93\u7b49\u5173\u952e\u6982\u5ff5\uff0c\u52a9\u60a8\u5f00\u542fAI\u5e94\u7528\u5f00\u53d1\u4e4b\u65c5\uff01","rank_math_focus_keyword":"LangChain, \u5927\u578b\u8bed\u8a00\u6a21\u578b, AI\u5e94\u7528\u5f00\u53d1, \u5411\u91cf\u6570\u636e\u5e93, \u63d0\u793a\u5de5\u7a0b","views":"14","footnotes":""},"categories":[3],"tags":[128,129,136,126,127],"collection":[],"class_list":["post-1230","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fenlei2","tag-128","tag-129","tag-136","tag-gpt","tag-ai"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1230","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=1230"}],"version-history":[{"count":0,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1230\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media\/2679"}],"wp:attachment":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media?parent=1230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/categories?post=1230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/tags?post=1230"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/collection?post=1230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}