{"id":28206,"date":"2025-03-11T16:18:12","date_gmt":"2025-03-11T08:18:12","guid":{"rendered":"https:\/\/www.aisharenet.com\/?p=28206"},"modified":"2025-03-11T16:18:12","modified_gmt":"2025-03-11T08:18:12","slug":"langchain-vs-langgraph","status":"publish","type":"post","link":"https:\/\/www.kdjingpai.com\/pt\/langchain-vs-langgraph\/","title":{"rendered":"LangChain vs. LangGraph\uff1a\u5b98\u65b9\u544a\u8bc9\u4f60\u8be5\u5982\u4f55\u9009\u62e9"},"content":{"rendered":"<p>\u5f53\u524d\u751f\u6210\u5f0f AI \u9886\u57df\u53d1\u5c55\u8fc5\u901f\uff0c\u65b0\u7684\u6846\u67b6\u548c\u6280\u672f\u5c42\u51fa\u4e0d\u7a77\u3002\u56e0\u6b64\uff0c\u8bfb\u8005\u9700\u8981\u6ce8\u610f\uff0c\u672c\u6587\u6240\u4ecb\u7ecd\u7684\u5185\u5bb9\u53ef\u80fd\u5177\u6709\u65f6\u6548\u6027\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u7528\u4e8e\u6784\u5efa LLM \u5e94\u7528\u7a0b\u5e8f\u7684\u4e24\u4e2a\u4e3b\u6d41\u6846\u67b6\uff1aLangChain \u548c LangGraph\uff0c\u5e76\u5206\u6790\u5b83\u4eec\u7684\u4f18\u52a3\uff0c\u5e2e\u52a9\u4f60\u9009\u62e9\u6700\u9002\u5408\u7684\u5de5\u5177\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/www.kdjingpai.com\/wp-content\/uploads\/2025\/03\/13f398112d05ec2.png\" alt=\"\" width=\"543\" height=\"671\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2>LangChain \u4e0e LangGraph \u7684\u57fa\u7840\u7ec4\u4ef6<\/h2>\n<p>\u4e86\u89e3\u8fd9\u4e24\u4e2a\u6846\u67b6\u7684\u57fa\u7840\u5143\u7d20\uff0c\u80fd\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u6df1\u5165\u5730\u7406\u89e3\u5b83\u4eec\u5728\u5904\u7406\u6838\u5fc3\u529f\u80fd\u4e0a\u7684\u5173\u952e\u533a\u522b\u3002\u4e0b\u9762\u7684\u63cf\u8ff0\u5e76\u672a\u5217\u51fa\u6bcf\u4e2a\u6846\u67b6\u7684\u6240\u6709\u7ec4\u4ef6\uff0c\u800c\u662f\u4e3a\u4e86\u8ba9\u5927\u5bb6\u5bf9\u5b83\u4eec\u7684\u6574\u4f53\u8bbe\u8ba1\u6709\u4e00\u4e2a\u6e05\u6670\u7684\u8ba4\u8bc6\u3002<\/p>\n<h3>LangChain<\/h3>\n<p>LangChain \u4e3b\u8981\u6709\u4e24\u79cd\u4f7f\u7528\u65b9\u5f0f\uff1a\u9884\u5b9a\u4e49\u547d\u4ee4\u7684\u987a\u5e8f\u94fe\uff08Chain\uff09\u548c LangChain Agent\u3002\u8fd9\u4e24\u79cd\u65b9\u5f0f\u5728\u5de5\u5177\u548c\u7f16\u6392\u4e0a\u6709\u6240\u4e0d\u540c\u3002\u94fe\u91c7\u7528\u9884\u5b9a\u4e49\u7684\u7ebf\u6027\u5de5\u4f5c\u6d41\uff0c\u800c Agent \u5219\u4f5c\u4e3a\u4e00\u4e2a\u534f\u8c03\u8005\uff0c\u53ef\u4ee5\u8fdb\u884c\u66f4\u5177\u52a8\u6001\u6027\uff08\u975e\u7ebf\u6027\uff09\u7684\u51b3\u7b56\u3002<\/p>\n<ul>\n<li><strong>\u94fe\uff08Chain\uff09<\/strong>\uff1a\u4e00\u7cfb\u5217\u6b65\u9aa4\u7684\u7ec4\u5408\uff0c\u8fd9\u4e9b\u6b65\u9aa4\u53ef\u4ee5\u5305\u62ec\u8c03\u7528 LLM\u3001Agent\u3001\u5de5\u5177\u3001\u5916\u90e8\u6570\u636e\u6e90\u4ee5\u53ca\u8fc7\u7a0b\u5f0f\u4ee3\u7801\u7b49\u3002\u94fe\u53ef\u4ee5\u6839\u636e\u903b\u8f91\u6761\u4ef6\u5206\u652f\uff0c\u5c06\u5355\u4e00\u6d41\u7a0b\u62c6\u5206\u4e3a\u591a\u4e2a\u8def\u5f84\u3002<\/li>\n<li><strong>Agent \u6216 LLM<\/strong>\uff1aLLM \u672c\u8eab\u80fd\u591f\u751f\u6210\u81ea\u7136\u8bed\u8a00\u54cd\u5e94\uff0c\u800c Agent \u5219\u7ed3\u5408\u4e86 LLM \u4e0e\u989d\u5916\u80fd\u529b\uff0c\u4f7f\u5176\u80fd\u591f\u8fdb\u884c\u63a8\u7406\u3001\u8c03\u7528\u5de5\u5177\uff0c\u5e76\u5728\u8c03\u7528\u5de5\u5177\u5931\u8d25\u65f6\u5c1d\u8bd5\u3002<\/li>\n<li><strong>\u5de5\u5177\uff08Tool\uff09<\/strong>\uff1a\u662f\u53ef\u4ee5\u5728\u94fe\u4e2d\u88ab\u8c03\u7528\u7684\u4ee3\u7801\u51fd\u6570\uff0c\u6216\u7531 Agent \u89e6\u53d1\uff0c\u4ee5\u4e0e\u5916\u90e8\u7cfb\u7edf\u4ea4\u4e92\u3002<\/li>\n<li><strong>\u63d0\u793a\u8bcd\uff08Prompt\uff09<\/strong>\uff1a\u5305\u62ec\u7cfb\u7edf\u63d0\u793a\u8bcd\uff08\u7528\u4e8e\u6307\u793a\u6a21\u578b\u5982\u4f55\u5b8c\u6210\u4efb\u52a1\u4ee5\u53ca\u53ef\u7528\u5de5\u5177\uff09\u3001\u6765\u81ea\u5916\u90e8\u6570\u636e\u6e90\u7684\u6ce8\u5165\u4fe1\u606f\uff08\u4e3a\u6a21\u578b\u63d0\u4f9b\u66f4\u591a\u4e0a\u4e0b\u6587\uff09\u3001\u4ee5\u53ca\u7528\u6237\u7684\u8f93\u5165\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<h3>LangGraph<\/h3>\n<p><a href=\"https:\/\/www.kdjingpai.com\/langgraph\/\">LangGraph<\/a> \u91c7\u7528\u4e86\u4e00\u79cd\u4e0d\u540c\u7684\u6784\u5efa AI \u5de5\u4f5c\u6d41\u7684\u65b9\u6cd5\u3002\u6b63\u5982\u5176\u540d\uff0c\u5b83\u4ee5\u56fe\uff08Graph\uff09\u7684\u65b9\u5f0f\u7f16\u6392\u5de5\u4f5c\u6d41\u3002\u7531\u4e8e\u5176\u5728 AI Agent\u3001\u8fc7\u7a0b\u5f0f\u4ee3\u7801\u548c\u5176\u4ed6\u5de5\u5177\u4e4b\u95f4\u7684\u7075\u6d3b\u5904\u7406\u80fd\u529b\uff0c\u5b83\u66f4\u9002\u7528\u4e8e\u7ebf\u6027\u94fe\u3001\u5206\u652f\u94fe\u6216\u7b80\u5355 Agent \u7cfb\u7edf\u96be\u4ee5\u6ee1\u8db3\u9700\u6c42\u7684\u590d\u6742\u5e94\u7528\u573a\u666f\u3002LangGraph \u4e3a\u5904\u7406\u66f4\u590d\u6742\u7684\u6761\u4ef6\u903b\u8f91\u548c\u53cd\u9988\u5faa\u73af\u800c\u8bbe\u8ba1\uff0c\u6bd4 LangChain \u66f4\u5f3a\u5927\u3002<\/p>\n<ul>\n<li><strong>\u56fe\uff08Graph\uff09<\/strong>\uff1a\u4e00\u79cd\u7075\u6d3b\u7684\u5de5\u4f5c\u6d41\u7ec4\u7ec7\u65b9\u5f0f\uff0c\u652f\u6301\u8c03\u7528 LLM\u3001\u5de5\u5177\u3001\u5916\u90e8\u6570\u636e\u6e90\u3001\u8fc7\u7a0b\u5f0f\u4ee3\u7801\u7b49\u3002LangGraph \u8fd8\u652f\u6301\u5faa\u73af\u56fe\uff08Cyclical Graph\uff09\uff0c\u5373\u53ef\u521b\u5efa\u5faa\u73af\u548c\u53cd\u9988\u673a\u5236\uff0c\u4f7f\u5f97\u67d0\u4e9b\u8282\u70b9\u80fd\u591f\u88ab\u591a\u6b21\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u8282\u70b9\uff08Node\uff09<\/strong>\uff1a\u8868\u793a\u5de5\u4f5c\u6d41\u4e2d\u7684\u6b65\u9aa4\uff0c\u4f8b\u5982 LLM \u67e5\u8be2\u3001API \u8c03\u7528\u6216\u5de5\u5177\u6267\u884c\u3002<\/li>\n<li><strong>\u8fb9\uff08Edge\uff09\u548c\u6761\u4ef6\u8fb9\uff08Conditional Edge\uff09<\/strong>\uff1a\u8fb9\u7528\u4e8e\u8fde\u63a5\u8282\u70b9\uff0c\u5b9a\u4e49\u4fe1\u606f\u6d41\u5411\uff0c\u4f7f\u4e00\u4e2a\u8282\u70b9\u7684\u8f93\u51fa\u4f5c\u4e3a\u4e0b\u4e00\u4e2a\u8282\u70b9\u7684\u8f93\u5165\u3002\u6761\u4ef6\u8fb9\u5141\u8bb8\u5728\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u65f6\uff0c\u5c06\u4fe1\u606f\u4ece\u4e00\u4e2a\u8282\u70b9\u6d41\u5411\u53e6\u4e00\u4e2a\u8282\u70b9\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u81ea\u5b9a\u4e49\u8fd9\u4e9b\u6761\u4ef6\u3002<\/li>\n<li><strong>\u72b6\u6001\uff08State\uff09<\/strong>\uff1a\u8868\u793a\u5e94\u7528\u7a0b\u5e8f\u7684\u5f53\u524d\u72b6\u6001\uff0c\u968f\u7740\u4fe1\u606f\u5728\u56fe\u4e2d\u6d41\u52a8\u800c\u66f4\u65b0\u3002\u72b6\u6001\u662f\u4e00\u4e2a\u5f00\u53d1\u8005\u5b9a\u4e49\u7684\u53ef\u53d8 TypedDict \u5bf9\u8c61\uff0c\u5305\u542b\u5f53\u524d\u6267\u884c\u56fe\u6240\u9700\u7684\u6240\u6709\u76f8\u5173\u4fe1\u606f\u3002LangGraph \u4f1a\u5728\u6bcf\u4e2a\u8282\u70b9\u81ea\u52a8\u66f4\u65b0\u72b6\u6001\u3002<\/li>\n<li><strong>Agent \u6216 LLM<\/strong>\uff1a\u56fe\u4e2d\u7684 LLM \u4ec5\u8d1f\u8d23\u5bf9\u8f93\u5165\u751f\u6210\u6587\u672c\u54cd\u5e94\u3002\u800c Agent \u80fd\u529b\u5219\u5141\u8bb8\u56fe\u4e2d\u5305\u542b\u591a\u4e2a\u8282\u70b9\uff0c\u5206\u522b\u4ee3\u8868 Agent \u7684\u4e0d\u540c\u7ec4\u4ef6\uff08\u5982\u63a8\u7406\u3001\u5de5\u5177\u9009\u62e9\u548c\u5de5\u5177\u6267\u884c\uff09\u3002Agent \u53ef\u4ee5\u51b3\u5b9a\u5728\u56fe\u4e2d\u91c7\u53d6\u54ea\u6761\u8def\u5f84\u3001\u66f4\u65b0\u56fe\u7684\u72b6\u6001\uff0c\u5e76\u6267\u884c\u6bd4\u5355\u7eaf\u6587\u672c\u751f\u6210\u66f4\u591a\u7684\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<p>\u7b80\u5355\u6765\u8bf4\uff0cLangChain \u66f4\u9002\u5408\u7ebf\u6027\u548c\u57fa\u4e8e\u5de5\u5177\u7684\u8c03\u7528\uff0c\u800c LangGraph \u5219\u66f4\u9002\u5408\u590d\u6742\u7684\u3001\u591a\u8def\u5f84\u548c\u5177\u6709\u53cd\u9988\u673a\u5236\u7684 AI \u5de5\u4f5c\u6d41\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>LangChain \u4e0e LangGraph \u5728\u6838\u5fc3\u529f\u80fd\u5904\u7406\u65b9\u5f0f\u4e0a\u7684\u533a\u522b<\/h2>\n<p>LangGraph \u548c LangChain \u5728\u67d0\u4e9b\u80fd\u529b\u4e0a\u6709\u6240\u91cd\u53e0\uff0c\u4f46\u5b83\u4eec\u5904\u7406\u95ee\u9898\u7684\u65b9\u5f0f\u6709\u6240\u4e0d\u540c\u3002LangChain \u4e3b\u8981\u5173\u6ce8\u7ebf\u6027\u5de5\u4f5c\u6d41\uff08\u901a\u8fc7\u94fe\uff09\u6216\u4e0d\u540c\u7684 AI Agent \u6a21\u5f0f\uff0c\u800c LangGraph \u5219\u4e13\u6ce8\u4e8e\u521b\u5efa\u66f4\u7075\u6d3b\u3001\u7ec6\u7c92\u5ea6\u7684\u3001\u57fa\u4e8e\u6d41\u7a0b\u7684\u5de5\u4f5c\u6d41\uff0c\u5176\u4e2d\u53ef\u4ee5\u5305\u542b AI Agent\u3001\u5de5\u5177\u8c03\u7528\u3001\u8fc7\u7a0b\u5f0f\u4ee3\u7801\u7b49\u3002<\/p>\n<p>\u901a\u5e38\uff0cLangChain \u7684\u5b66\u4e60\u66f2\u7ebf\u76f8\u5bf9\u8f83\u4f4e\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u62bd\u8c61\u5c01\u88c5\u548c\u9884\u5b9a\u4e49\u914d\u7f6e\uff0c\u8fd9\u4f7f\u5f97 LangChain \u66f4\u5bb9\u6613\u5e94\u7528\u4e8e\u7b80\u5355\u7684\u4f7f\u7528\u573a\u666f\u3002\u800c LangGraph \u5219\u5141\u8bb8\u5bf9\u5de5\u4f5c\u6d41\u8bbe\u8ba1\u8fdb\u884c\u66f4\u7ec6\u7c92\u5ea6\u7684\u5b9a\u5236\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u7684\u62bd\u8c61\u7a0b\u5ea6\u8f83\u4f4e\uff0c\u5f00\u53d1\u8005\u9700\u8981\u5b66\u4e60\u66f4\u591a\u5185\u5bb9\u624d\u80fd\u6709\u6548\u4f7f\u7528\u3002<\/p>\n<h3>\u5de5\u5177\u8c03\u7528\uff08Tool Calling\uff09<\/h3>\n<h4>LangChain<\/h4>\n<p>\u5728 LangChain \u4e2d\uff0c\u5de5\u5177\u7684\u8c03\u7528\u65b9\u5f0f\u53d6\u51b3\u4e8e\u662f\u5728\u94fe\u4e2d\u6309\u987a\u5e8f\u6267\u884c\u4e00\u7cfb\u5217\u6b65\u9aa4\uff0c\u8fd8\u662f\u4ec5\u4f7f\u7528 Agent \u80fd\u529b\uff08\u4e0d\u5728\u94fe\u4e2d\u660e\u786e\u5b9a\u4e49\uff09\u3002<\/p>\n<ul>\n<li>\u5728\u94fe\u4e2d\uff0c\u5de5\u5177\u662f\u4f5c\u4e3a\u9884\u5b9a\u4e49\u6b65\u9aa4\u5305\u542b\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u5e76\u4e0d\u4e00\u5b9a\u662f\u7531 Agent \u52a8\u6001\u8c03\u7528\u7684\uff0c\u800c\u662f\u5728\u94fe\u8bbe\u8ba1\u65f6\u5c31\u5df2\u51b3\u5b9a\u4e86\u8c03\u7528\u54ea\u4e9b\u5de5\u5177\u3002<\/li>\n<li>\u5f53 Agent \u4e0d\u5728\u94fe\u4e2d\u5b9a\u4e49\u65f6\uff0cAgent \u5177\u6709\u66f4\u5927\u7684\u81ea\u4e3b\u6027\uff0c\u5b83\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u53ef\u8bbf\u95ee\u7684\u5de5\u5177\u5217\u8868\uff0c\u51b3\u5b9a\u8c03\u7528\u54ea\u4e2a\u5de5\u5177\u4ee5\u53ca\u4f55\u65f6\u8c03\u7528\u3002<\/li>\n<\/ul>\n<p><strong>\u94fe\u65b9\u5f0f\u7684\u6d41\u7a0b\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/www.kdjingpai.com\/wp-content\/uploads\/2025\/03\/3bb50cf24c79eeb.png\" alt=\"\" width=\"564\" height=\"164\" \/><\/p>\n<p><strong>Agent \u65b9\u5f0f\u7684\u6d41\u7a0b\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/www.kdjingpai.com\/wp-content\/uploads\/2025\/03\/100b13929ed77e3.png\" alt=\"\" width=\"588\" height=\"171\" \/><\/p>\n<h4>LangGraph<\/h4>\n<p>\u5728 LangGraph \u4e2d\uff0c\u5de5\u5177\u901a\u5e38\u88ab\u8868\u793a\u4e3a\u56fe\u4e0a\u7684\u4e00\u4e2a\u8282\u70b9\u3002\u5982\u679c\u56fe\u4e2d\u5305\u542b\u4e00\u4e2a Agent\uff0c\u90a3\u4e48 Agent \u8d1f\u8d23\u51b3\u5b9a\u8c03\u7528\u54ea\u4e2a\u5de5\u5177\uff0c\u8fd9\u4e00\u51b3\u7b56\u57fa\u4e8e\u5176\u63a8\u7406\u80fd\u529b\u3002\u5f53 Agent \u9009\u62e9\u4e86\u67d0\u4e2a\u5de5\u5177\u540e\uff0c\u5de5\u4f5c\u6d41\u4f1a\u8df3\u8f6c\u5230\u5bf9\u5e94\u7684\u201c\u5de5\u5177\u8282\u70b9\u201d\uff08Tool Node\uff09\uff0c\u4ee5\u6267\u884c\u8be5\u5de5\u5177\u7684\u64cd\u4f5c\u3002\u5728 Agent \u548c\u5de5\u5177\u8282\u70b9\u4e4b\u95f4\u7684\u8fb9\u53ef\u4ee5\u5305\u542b\u6761\u4ef6\u903b\u8f91\uff08Conditional Logic\uff09\uff0c\u4ece\u800c\u589e\u52a0\u989d\u5916\u7684\u5224\u65ad\u903b\u8f91\uff0c\u4ee5\u51b3\u5b9a\u662f\u5426\u6267\u884c\u67d0\u4e2a\u5de5\u5177\u3002\u8fd9\u6837\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u62e5\u6709\u66f4\u7cbe\u7ec6\u7684\u63a7\u5236\u80fd\u529b\u3002\u5982\u679c\u56fe\u4e2d\u6ca1\u6709 Agent\uff0c\u90a3\u4e48\u5de5\u5177\u7684\u8c03\u7528\u65b9\u5f0f\u7c7b\u4f3c\u4e8e LangChain \u7684\u94fe\uff0c\u5373\u6839\u636e\u9884\u5b9a\u4e49\u7684\u6761\u4ef6\u903b\u8f91\u5728\u5de5\u4f5c\u6d41\u4e2d\u6267\u884c\u5de5\u5177\u3002<\/p>\n<p><strong>\u5305\u542b Agent \u7684\u56fe\u6d41\u7a0b\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/www.kdjingpai.com\/wp-content\/uploads\/2025\/03\/e25899b8744c213.png\" alt=\"\" width=\"694\" height=\"232\" \/><\/p>\n<p><strong>\u6ca1\u6709 Agent \u7684\u56fe\u7684\u6d41\u7a0b\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/www.kdjingpai.com\/wp-content\/uploads\/2025\/03\/5bb74afa75c4af4.png\" alt=\"\" width=\"443\" height=\"276\" \/><\/p>\n<h3>\u5bf9\u8bdd\u5386\u53f2\u548c\u8bb0\u5fc6<\/h3>\n<h4>LangChain<\/h4>\n<p>LangChain \u63d0\u4f9b\u5185\u7f6e\u7684\u62bd\u8c61\u5c42\u6765\u5904\u7406\u5bf9\u8bdd\u5386\u53f2\u548c\u8bb0\u5fc6\u3002\u5b83\u652f\u6301\u4e0d\u540c\u7c92\u5ea6\u7ea7\u522b\u7684\u8bb0\u5fc6\u7ba1\u7406\uff0c\u4ece\u800c\u63a7\u5236\u4f20\u9012\u7ed9 LLM \u7684 <a href=\"https:\/\/www.kdjingpai.com\/tokenization\/\">token<\/a> \u6570\u91cf\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>\u5b8c\u6574\u7684\u4f1a\u8bdd\u5386\u53f2\uff08Full session conversation history\uff09<\/li>\n<li>\u6458\u8981\u7248\u672c\u7684\u5bf9\u8bdd\u5386\u53f2\uff08Summarized conversation history\uff09<\/li>\n<li>\u81ea\u5b9a\u4e49\u5b9a\u4e49\u7684\u8bb0\u5fc6\uff08Custom defined memory\uff09<\/li>\n<\/ul>\n<p>\u6b64\u5916\uff0c\u5f00\u53d1\u8005\u8fd8\u53ef\u4ee5\u81ea\u5b9a\u4e49\u957f\u671f\u8bb0\u5fc6\u7cfb\u7edf\uff0c\u5c06\u5bf9\u8bdd\u5386\u53f2\u5b58\u50a8\u5728\u5916\u90e8\u6570\u636e\u5e93\u4e2d\uff0c\u5e76\u5728\u9700\u8981\u65f6\u68c0\u7d22\u76f8\u5173\u8bb0\u5fc6\u3002<\/p>\n<h4>LangGraph<\/h4>\n<p>\u5728 LangGraph \u4e2d\uff0c\u72b6\u6001\uff08State\uff09\u8d1f\u8d23\u7ba1\u7406\u8bb0\u5fc6\uff0c\u5b83\u901a\u8fc7\u8bb0\u5f55\u6bcf\u4e2a\u65f6\u523b\u5b9a\u4e49\u7684\u53d8\u91cf\u6765\u8ddf\u8e2a\u72b6\u6001\u4fe1\u606f\u3002State \u53ef\u4ee5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u5bf9\u8bdd\u5386\u53f2<\/li>\n<li>\u4efb\u52a1\u6267\u884c\u7684\u5404\u4e2a\u6b65\u9aa4<\/li>\n<li>\u8bed\u8a00\u6a21\u578b\u4e0a\u4e00\u6b21\u7684\u8f93\u51fa\u7ed3\u679c<\/li>\n<li>\u5176\u4ed6\u91cd\u8981\u4fe1\u606f<\/li>\n<\/ul>\n<p>State \u53ef\u4ee5\u5728\u8282\u70b9\u4e4b\u95f4\u4f20\u9012\uff0c\u8fd9\u6837\u6bcf\u4e2a\u8282\u70b9\u90fd\u80fd\u83b7\u53d6\u5f53\u524d\u7cfb\u7edf\u7684\u72b6\u6001\u3002\u4f46\u662f\uff0cLangGraph \u672c\u8eab\u4e0d\u63d0\u4f9b\u8de8\u4f1a\u8bdd\u7684\u957f\u671f\u8bb0\u5fc6\u529f\u80fd\uff0c\u5982\u679c\u5f00\u53d1\u8005\u9700\u8981\u6301\u4e45\u5316\u5b58\u50a8\u8bb0\u5fc6\uff0c\u53ef\u4ee5\u5f15\u5165\u7279\u5b9a\u7684\u8282\u70b9\uff0c\u7528\u4e8e\u5c06\u8bb0\u5fc6\u548c\u53d8\u91cf\u5b58\u5165\u5916\u90e8\u6570\u636e\u5e93\uff0c\u4ee5\u4fbf\u540e\u7eed\u68c0\u7d22\u3002<\/p>\n<h3>\u5373\u7528\u578b RAG \u80fd\u529b<\/h3>\n<h4>LangChain<\/h4>\n<p>LangChain \u539f\u751f\u652f\u6301\u590d\u6742\u7684 <a href=\"https:\/\/www.kdjingpai.com\/rag\/\">RAG<\/a> \u5de5\u4f5c\u6d41\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u5957\u6210\u719f\u7684\u5de5\u5177\uff0c\u65b9\u4fbf\u5f00\u53d1\u8005\u5c06 RAG \u96c6\u6210\u5230\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002\u4f8b\u5982\uff0c\u5b83\u63d0\u4f9b\u4e86\uff1a<\/p>\n<ul>\n<li>\u6587\u6863\u52a0\u8f7d\uff08Document Loading\uff09<\/li>\n<li>\u6587\u672c\u89e3\u6790\uff08Text Parsing\uff09<\/li>\n<li>Embedding \u751f\u6210\uff08Embedding Creation\uff09<\/li>\n<li>\u5411\u91cf\u5b58\u50a8\uff08Vector Storage\uff09<\/li>\n<li>\u68c0\u7d22\u80fd\u529b\uff08Retrieval Capabilities\uff09<\/li>\n<\/ul>\n<p>\u5f00\u53d1\u8005\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 LangChain \u63d0\u4f9b\u7684 API\uff08\u5982\u00a0<code>langchain.document_loaders<\/code>\u3001<code>langchain.embeddings<\/code>\u00a0\u548c\u00a0<code>langchain.vectorstores<\/code>\uff09\u6765\u5b9e\u73b0 RAG \u5de5\u4f5c\u6d41\u3002<\/p>\n<h4>LangGraph<\/h4>\n<p>\u5728 LangGraph \u4e2d\uff0cRAG \u9700\u8981\u5f00\u53d1\u8005\u81ea\u884c\u8bbe\u8ba1\uff0c\u5e76\u4f5c\u4e3a\u56fe\u7ed3\u6784\u7684\u4e00\u90e8\u5206\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u521b\u5efa\u5355\u72ec\u7684\u8282\u70b9\uff0c\u5206\u522b\u7528\u4e8e\uff1a<\/p>\n<ul>\n<li>\u6587\u6863\u89e3\u6790\uff08Document Parsing\uff09<\/li>\n<li>Embedding \u8ba1\u7b97\uff08Embedding Computation\uff09<\/li>\n<li>\u8bed\u4e49\u68c0\u7d22\uff08Retrieval\uff09<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u8282\u70b9\u4e4b\u95f4\u53ef\u4ee5\u901a\u8fc7\u666e\u901a\u8fb9\uff08Normal Edges\uff09\u6216\u6761\u4ef6\u8fb9\uff08Conditional Edges\uff09\u8fdb\u884c\u8fde\u63a5\uff0c\u800c\u5404\u4e2a\u8282\u70b9\u7684\u72b6\u6001\u53ef\u4ee5\u7528\u4e8e\u4f20\u9012\u4fe1\u606f\uff0c\u4ee5\u4fbf\u5728 RAG \u6d41\u6c34\u7ebf\u7684\u4e0d\u540c\u6b65\u9aa4\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u3002<\/p>\n<h3>\u5e76\u884c\u5904\u7406\uff08Parallelism\uff09<\/h3>\n<h4>LangChain<\/h4>\n<p>LangChain \u5141\u8bb8\u5e76\u884c\u6267\u884c\u591a\u4e2a\u94fe\u6216 Agent\uff0c\u53ef\u4ee5\u4f7f\u7528\u00a0<code>RunnableParallel<\/code>\u00a0\u7c7b\u6765\u5b9e\u73b0\u57fa\u672c\u7684\u5e76\u884c\u5904\u7406\u3002<\/p>\n<p>\u4f46\u5982\u679c\u9700\u8981\u66f4\u9ad8\u7ea7\u7684\u5e76\u884c\u8ba1\u7b97\u6216\u5f02\u6b65\u5de5\u5177\u8c03\u7528\uff0c\u5f00\u53d1\u8005\u9700\u8981\u4f7f\u7528 Python \u5e93\uff08\u5982\u00a0<code>asyncio<\/code>\uff09\u81ea\u884c\u5b9e\u73b0\u3002<\/p>\n<h4>LangGraph<\/h4>\n<p>LangGraph \u5929\u7136\u652f\u6301\u5e76\u884c\u6267\u884c\u8282\u70b9\uff0c\u53ea\u8981\u8fd9\u4e9b\u8282\u70b9\u4e4b\u95f4\u6ca1\u6709\u4f9d\u8d56\u5173\u7cfb\uff08\u4f8b\u5982\uff0c\u4e00\u4e2a LLM \u7684\u8f93\u51fa\u4e0d\u80fd\u4f5c\u4e3a\u4e0b\u4e00\u4e2a\u8282\u70b9\u7684\u8f93\u5165\uff09\u3002\u8fd9\u610f\u5473\u7740\u591a\u4e2a Agent \u53ef\u4ee5\u540c\u65f6\u8fd0\u884c\uff0c\u524d\u63d0\u662f\u5b83\u4eec\u4e0d\u662f\u76f8\u4e92\u4f9d\u8d56\u7684\u8282\u70b9\u3002<\/p>\n<p>\u6b64\u5916\uff0cLangGraph \u4e5f\u652f\u6301\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u00a0<code>RunnableParallel<\/code>\u00a0\u8fd0\u884c\u591a\u4e2a Graph<\/li>\n<li>\u901a\u8fc7 Python \u7684\u00a0<code>asyncio<\/code>\u00a0\u5e93\u5e76\u884c\u8c03\u7528\u5de5\u5177<\/li>\n<\/ul>\n<h3>\u91cd\u8bd5\u903b\u8f91\u548c\u9519\u8bef\u5904\u7406<\/h3>\n<h4>LangChain<\/h4>\n<p>LangChain \u7684\u9519\u8bef\u5904\u7406\u9700\u8981\u7531\u5f00\u53d1\u8005\u663e\u5f0f\u5b9a\u4e49\uff0c\u53ef\u4ee5\u901a\u8fc7\uff1a<\/p>\n<ul>\n<li>\u5728\u94fe\u4e2d\u5f15\u5165\u91cd\u8bd5\u903b\u8f91\uff08Retry Logic\uff09<\/li>\n<li>\u5728 Agent \u4e2d\u5904\u7406\u5de5\u5177\u8c03\u7528\u5931\u8d25\u7684\u60c5\u51b5<\/li>\n<\/ul>\n<h4>LangGraph<\/h4>\n<p>LangGraph \u53ef\u4ee5\u76f4\u63a5\u5728\u5de5\u4f5c\u6d41\u4e2d\u5d4c\u5165\u9519\u8bef\u5904\u7406\u903b\u8f91\uff0c\u65b9\u6cd5\u662f\u5c06\u9519\u8bef\u5904\u7406\u4f5c\u4e3a\u4e00\u4e2a\u72ec\u7acb\u7684\u8282\u70b9\u3002<\/p>\n<ul>\n<li>\u5f53\u67d0\u4e2a\u4efb\u52a1\u5931\u8d25\u65f6\uff0c\u53ef\u4ee5\u8df3\u8f6c\u5230\u53e6\u4e00\u4e2a\u9519\u8bef\u5904\u7406\u8282\u70b9\uff0c\u6216\u8005\u5728\u5f53\u524d\u8282\u70b9\u8fdb\u884c\u91cd\u8bd5\u3002<\/li>\n<li>\u5931\u8d25\u7684\u8282\u70b9\u4f1a\u88ab\u5355\u72ec\u91cd\u8bd5\uff0c\u800c\u4e0d\u662f\u6574\u4e2a\u5de5\u4f5c\u6d41\u91cd\u65b0\u6267\u884c\u3002<\/li>\n<li>\u8fd9\u6837\uff0c\u56fe\u53ef\u4ee5\u4ece\u5931\u8d25\u7684\u5730\u65b9\u7ee7\u7eed\u6267\u884c\uff0c\u800c\u4e0d\u9700\u8981\u4ece\u5934\u5f00\u59cb\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u7684\u4efb\u52a1\u6d89\u53ca\u591a\u4e2a\u6b65\u9aa4\u548c\u5de5\u5177\u8c03\u7528\uff0c\u8fd9\u79cd\u9519\u8bef\u5904\u7406\u673a\u5236\u53ef\u80fd\u4f1a\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u5982\u4f55\u9009\u62e9 LangChain \u4e0e LangGraph\uff1f<\/h2>\n<p>\u5f00\u53d1\u8005\u53ef\u4ee5\uff1a<\/p>\n<ul>\n<li>\u4ec5\u4f7f\u7528 LangChain<\/li>\n<li>\u4ec5\u4f7f\u7528 LangGraph<\/li>\n<li>\u540c\u65f6\u4f7f\u7528 LangChain \u548c LangGraph<\/li>\n<\/ul>\n<p>\u6b64\u5916\uff0c\u4e5f\u53ef\u4ee5\u5c06 LangGraph \u7684\u56fe\u7ed3\u6784\u7f16\u6392\u80fd\u529b\u4e0e\u5176\u4ed6 Agent \u6846\u67b6\uff08\u5982\u5fae\u8f6f\u7684 AutoGen\uff09\u7ed3\u5408\uff0c\u4f8b\u5982\uff1a\u5c06 <a href=\"https:\/\/www.kdjingpai.com\/autogen-2\/\">AutoGen<\/a> \u7684 Agent \u4f5c\u4e3a LangGraph \u7684\u8282\u70b9\u3002<\/p>\n<p>LangChain \u548c LangGraph \u5404\u6709\u4f18\u52bf\uff0c\u9009\u62e9\u5408\u9002\u7684\u5de5\u5177\u53ef\u80fd\u4f1a\u8ba9\u4eba\u611f\u5230\u56f0\u60d1\u3002<\/p>\n<h3>\u4f55\u65f6\u9009\u62e9 LangChain\uff1f<\/h3>\n<p>\u5982\u679c\u5f00\u53d1\u8005\u9700\u8981\u5feb\u901f\u6784\u5efa AI \u5de5\u4f5c\u6d41\uff0c\u4ee5\u4e0b\u60c5\u51b5\u53ef\u4ee5\u8003\u8651\u9009\u62e9 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