{"id":62902,"date":"2026-01-20T22:05:41","date_gmt":"2026-01-20T14:05:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/62902.html"},"modified":"2026-01-20T22:05:41","modified_gmt":"2026-01-20T14:05:41","slug":"%e3%80%90ai%e5%ad%a6%e4%b9%a0%e4%bb%8e%e9%9b%b6%e8%87%b3%e5%a3%b9%e3%80%91langchain1-0%e4%b8%ad%e9%97%b4%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/62902.html","title":{"rendered":"\u3010AI\u5b66\u4e60\u4ece\u96f6\u81f3\u58f9\u3011langchain1.0\u4e2d\u95f4\u4ef6"},"content":{"rendered":"<\/p>\n<h4>langchain1.0\u4e2d\u95f4\u4ef6<\/h4>\n<ul>\n<li>LangChain 1.0 \u4e2d\u95f4\u4ef6\u6982\u5ff5\u4e0e\u5bf9\u6bd4\u5206\u6790<\/li>\n<li>\n<ul>\n<li>\u7b2c\u4e00\u90e8\u5206&#xff1a;LangChain 1.0 \u4e2d\u95f4\u4ef6\u6982\u5ff5\u89e3\u6790<\/li>\n<li>\n<ul>\n<li>\u4ec0\u4e48\u662f\u4e2d\u95f4\u4ef6&#xff1f;<\/li>\n<li>\u4e2d\u95f4\u4ef6\u7684\u6838\u5fc3\u4f18\u52bf<\/li>\n<li>\u56db\u5927\u6cd5\u5b9d\u94a9\u5b50\u51fd\u6570<\/li>\n<\/ul>\n<\/li>\n<li>\u7b2c\u4e8c\u90e8\u5206&#xff1a;LangChain 0.3 \u56de\u8c03\u5730\u72f1\u4ee3\u7801\u793a\u4f8b<\/li>\n<li>\n<ul>\n<li>\u56de\u8c03\u5730\u72f1\u7684\u4e03\u5927\u7f6a\u72b6<\/li>\n<\/ul>\n<\/li>\n<li>\u7b2c\u4e09\u90e8\u5206&#xff1a;LangChain 1.0 \u4e2d\u95f4\u4ef6\u91cd\u6784\u4ee3\u7801\u793a\u4f8b<\/li>\n<li>\n<ul>\n<li>\u4e2d\u95f4\u4ef6\u91cd\u6784\u7684\u4e03\u5927\u4f18\u52bf<\/li>\n<\/ul>\n<\/li>\n<li>\u7b2c\u56db\u90e8\u5206&#xff1a;\u56de\u8c03\u51fd\u6570\u4e0e\u4e2d\u95f4\u4ef6\u5bf9\u6bd4\u5206\u6790<\/li>\n<li>\n<ul>\n<li>\u67b6\u6784\u8bbe\u8ba1\u5bf9\u6bd4<\/li>\n<li>\u5b9e\u9645\u5f00\u53d1\u4f53\u9a8c\u5bf9\u6bd4<\/li>\n<li>\u4e2d\u95f4\u4ef6\u7684\u9769\u547d\u6027\u610f\u4e49<\/li>\n<li>\u6700\u4f73\u5b9e\u8df5\u5efa\u8bae<\/li>\n<\/ul>\n<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>LangChain 1.0 \u4e2d\u95f4\u4ef6\u6982\u5ff5\u4e0e\u5bf9\u6bd4\u5206\u6790<\/h2>\n<h3>\u7b2c\u4e00\u90e8\u5206&#xff1a;LangChain 1.0 \u4e2d\u95f4\u4ef6\u6982\u5ff5\u89e3\u6790<\/h3>\n<h4>\u4ec0\u4e48\u662f\u4e2d\u95f4\u4ef6&#xff1f;<\/h4>\n<p>\u5728 LangChain 1.0 \u4e2d&#xff0c;\u4e2d\u95f4\u4ef6&#xff08;Middleware&#xff09; \u662f\u4e00\u79cd\u9769\u547d\u6027\u7684\u67b6\u6784\u6a21\u5f0f&#xff0c;\u5b83\u5f7b\u5e95\u6539\u53d8\u4e86\u6211\u4eec\u5904\u7406 AI Agent \u751f\u547d\u5468\u671f\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u60f3\u8c61\u4e2d\u95f4\u4ef6\u5c31\u50cf\u7ed9 Agent \u7a7f\u4e0a\u4e86\u4e00\u4ef6&#034;\u94a2\u94c1\u4fa0\u6218\u8863&#034;\u2014\u2014\u8fd9\u5957\u6218\u8863\u80fd\u591f\u81ea\u52a8\u611f\u77e5\u5e76\u62e6\u622a\u6bcf\u4e00\u6b21\u808c\u8089\u6536\u7f29&#xff08;Tool Call&#xff09;\u548c\u6bcf\u4e00\u6b21\u8111\u7535\u6ce2\u7206\u53d1&#xff08;Model Call&#xff09;&#xff0c;\u800c Agent \u672c\u8eab\u751a\u81f3\u4e0d\u9700\u8981\u77e5\u9053\u6218\u8863\u7684\u5b58\u5728\u3002<\/p>\n<h4>\u4e2d\u95f4\u4ef6\u7684\u6838\u5fc3\u4f18\u52bf<\/h4>\n<p>\u975e\u4fb5\u5165\u5f0f\u8bbe\u8ba1&#xff1a;Agent \u6838\u5fc3\u903b\u8f91\u4fdd\u6301\u7eaf\u51c0&#xff0c;\u4e0d\u9700\u8981\u77e5\u9053\u65e5\u5fd7\u3001\u5b89\u5168\u6216\u8ba1\u8d39\u903b\u8f91\u7684\u5b58\u5728\u3002<\/p>\n<p>\u53ef\u7ec4\u5408\u6027&#xff1a;\u4f60\u53ef\u4ee5\u50cf\u642d\u79ef\u6728\u4e00\u6837\u53e0\u52a0\u591a\u4e2a\u4e2d\u95f4\u4ef6&#xff1a;\u4e00\u5c42\u8d1f\u8d23\u65e5\u5fd7&#xff0c;\u4e00\u5c42\u8d1f\u8d23\u5b89\u5168&#xff0c;\u4e00\u5c42\u8d1f\u8d23\u8ba1\u8d39\u3002<\/p>\n<p>\u7edf\u4e00\u62e6\u622a\u70b9&#xff1a;LangChain 1.0 \u63d0\u4f9b\u4e86\u6807\u51c6\u5316\u7684\u94a9\u5b50\u51fd\u6570&#xff0c;\u8ba9\u4f60\u80fd\u591f\u5728 Agent \u751f\u547d\u5468\u671f\u7684\u5173\u952e\u8282\u70b9\u63d2\u5165\u81ea\u5b9a\u4e49\u903b\u8f91\u3002<\/p>\n<h4>\u56db\u5927\u6cd5\u5b9d\u94a9\u5b50\u51fd\u6570<\/h4>\n<li>\n<p>wrap_model_call&#xff08;\u6700\u5f3a\u62e6\u622a\u5668&#xff09;<\/p>\n<ul>\n<li>\u7528\u9014&#xff1a;\u52a8\u6001\u6362\u6a21\u578b\u3001\u4fee\u6539 Prompt\u3001\u8bb0\u5f55\u65e5\u5fd7<\/li>\n<li>\u6267\u884c\u65f6\u673a&#xff1a;\u5305\u88f9\u5728\u6bcf\u6b21 LLM \u8c03\u7528\u5468\u56f4<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>wrap_tool_call<\/p>\n<ul>\n<li>\u7528\u9014&#xff1a;\u5de5\u5177\u9519\u8bef\u91cd\u8bd5\u3001PII \u8131\u654f\u3001\u6743\u9650\u68c0\u67e5<\/li>\n<li>\u6267\u884c\u65f6\u673a&#xff1a;\u5305\u88f9\u5728\u6bcf\u6b21\u5de5\u5177\u6267\u884c\u5468\u56f4<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>before_agent \/ after_agent<\/p>\n<ul>\n<li>\u7528\u9014&#xff1a;\u51c6\u5907\u4e0a\u4e0b\u6587\u3001\u52a0\u8f7d\u8bb0\u5fc6\u3001\u6e05\u7406\u73b0\u573a<\/li>\n<li>\u6267\u884c\u65f6\u673a&#xff1a;Agent \u6267\u884c\u524d\u540e<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>before_model \/ after_model<\/p>\n<ul>\n<li>\u7528\u9014&#xff1a;\u8f7b\u91cf\u7ea7\u94a9\u5b50&#xff0c;\u7b80\u5355\u7684\u9884\u5904\u7406\u548c\u540e\u5904\u7406<\/li>\n<li>\u6267\u884c\u65f6\u673a&#xff1a;\u6bcf\u6b21\u6a21\u578b\u8c03\u7528\u524d\u540e<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h3>\u7b2c\u4e8c\u90e8\u5206&#xff1a;LangChain 0.3 \u56de\u8c03\u5730\u72f1\u4ee3\u7801\u793a\u4f8b<\/h3>\n<p>\u8ba9\u6211\u4eec\u770b\u770b\u65e7\u65f6\u4ee3\u7684&#034;\u56de\u8c03\u5730\u72f1&#034;\u662f\u5982\u4f55\u6298\u78e8\u5f00\u53d1\u8005\u7684&#xff1a;<\/p>\n<p><span class=\"token keyword\">from<\/span> langchain<span class=\"token punctuation\">.<\/span>agents <span class=\"token keyword\">import<\/span> AgentType<span class=\"token punctuation\">,<\/span> initialize_agent<span class=\"token punctuation\">,<\/span> AgentExecutor<br \/>\n<span class=\"token keyword\">from<\/span> anygent<span class=\"token punctuation\">.<\/span>core<span class=\"token punctuation\">.<\/span>call_back <span class=\"token keyword\">import<\/span> MyBaseCallbackHandler<br \/>\n<span class=\"token keyword\">from<\/span> typing <span class=\"token keyword\">import<\/span> Callable<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Agent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">__init__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> system_setup<span class=\"token punctuation\">:<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> user_prompt<span class=\"token punctuation\">:<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> llm_name<span class=\"token punctuation\">:<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> thought_call_back<span class=\"token punctuation\">:<\/span>Callable<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>user_prompt <span class=\"token operator\">&#061;<\/span> user_prompt<\/p>\n<p>        <span class=\"token comment\"># \u56de\u8c03\u51fd\u6570\u5c01\u88c5 &#8211; \u7b2c\u4e00\u6b65\u590d\u6742\u6027<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>callback_handler <span class=\"token operator\">&#061;<\/span> MyBaseCallbackHandler<span class=\"token punctuation\">(<\/span>thought_call_back<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u5927\u6a21\u578b\u521d\u59cb\u5316<\/span><br \/>\n        llm <span class=\"token operator\">&#061;<\/span> self<span class=\"token punctuation\">.<\/span>get_llm<span class=\"token punctuation\">(<\/span>llm_name<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u7cfb\u7edf\u8eab\u4efd\u8bbe\u7f6e &#8211; \u7b2c\u4e8c\u6b65\u590d\u6742\u6027<\/span><br \/>\n        agent_kwargs <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#034;prefix&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>system_setup<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#034;suffix&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;Question:{input}\\\\n{agent_scratchpad}&#034;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><\/p>\n<p>        <span class=\"token comment\"># \u7b2c\u4e09\u6b65\u590d\u6742\u6027&#xff1a;\u5fc5\u987b\u624b\u52a8\u4e3a\u6bcf\u4e2a\u5de5\u5177\u7ed1\u5b9a\u56de\u8c03<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> tool <span class=\"token keyword\">in<\/span> tools<span class=\"token punctuation\">:<\/span><br \/>\n            tool<span class=\"token punctuation\">.<\/span>callbacks <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>callback_handler<span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># \u5de5\u5177\u5355\u72ec\u7ed1\u5b9a\u56de\u8c03\u51fd\u6570<\/span><\/p>\n<p>        <span class=\"token comment\"># \u7b2c\u56db\u6b65\u590d\u6742\u6027&#xff1a;\u521d\u59cb\u5316agent\u65f6\u7684\u56de\u8c03\u7ed1\u5b9a<\/span><br \/>\n        agent <span class=\"token operator\">&#061;<\/span> initialize_agent<span class=\"token punctuation\">(<\/span><br \/>\n            tools<span class=\"token punctuation\">,<\/span><br \/>\n            llm<span class=\"token punctuation\">,<\/span><br \/>\n            agent<span class=\"token operator\">&#061;<\/span>AgentType<span class=\"token punctuation\">.<\/span>ZERO_SHOT_REACT_DESCRIPTION<span class=\"token punctuation\">,<\/span><br \/>\n            agent_kwargs<span class=\"token operator\">&#061;<\/span>agent_kwargs<span class=\"token punctuation\">,<\/span><br \/>\n            verbose<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            callbacks<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>callback_handler<span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># \u8fd9\u91cc\u4e5f\u8981\u7ed1\u5b9a<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u7b2c\u4e94\u6b65\u590d\u6742\u6027&#xff1a;\u8fd8\u8981\u7ed9\u5185\u90e8\u94fe\u7ed1\u5b9a\u56de\u8c03 &#8211; \u53cc\u91cd\u786e\u4fdd<\/span><br \/>\n        agent<span class=\"token punctuation\">.<\/span>agent<span class=\"token punctuation\">.<\/span>llm_chain<span class=\"token punctuation\">.<\/span>callbacks <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>callback_handler<span class=\"token punctuation\">]<\/span><br \/>\n        agent<span class=\"token punctuation\">.<\/span>agent<span class=\"token punctuation\">.<\/span>llm_chain<span class=\"token punctuation\">.<\/span>llm<span class=\"token punctuation\">.<\/span>callbacks <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>callback_handler<span class=\"token punctuation\">]<\/span><\/p>\n<p>        <span class=\"token comment\"># \u7b2c\u516d\u6b65\u590d\u6742\u6027&#xff1a;AgentExecutor \u4e5f\u8981\u7ed1\u5b9a<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>agent_exe <span class=\"token operator\">&#061;<\/span> AgentExecutor<span class=\"token punctuation\">(<\/span><br \/>\n            agent<span class=\"token operator\">&#061;<\/span>agent<span class=\"token punctuation\">.<\/span>agent<span class=\"token punctuation\">,<\/span><br \/>\n            tools<span class=\"token operator\">&#061;<\/span>agent<span class=\"token punctuation\">.<\/span>tools<span class=\"token punctuation\">,<\/span><br \/>\n            verbose<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            max_iterations<span class=\"token operator\">&#061;<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            max_execution_time<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            early_stopping_method<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;force&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            handle_parsing_errors<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            callbacks<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>callback_handler<span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># \u518d\u6b21\u7ed1\u5b9a<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u7b2c\u4e03\u6b65\u590d\u6742\u6027&#xff1a;\u8c03\u7528\u65f6\u8fd8\u8981\u4f20\u56de\u8c03<\/span><br \/>\n        result <span class=\"token operator\">&#061;<\/span> self<span class=\"token punctuation\">.<\/span>agent_exe<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;input&#034;<\/span><span class=\"token punctuation\">:<\/span> self<span class=\"token punctuation\">.<\/span>user_prompt<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            callbacks<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">[<\/span>self<span class=\"token punctuation\">.<\/span>callback_handler<span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># \u8fd9\u91cc\u8fd8\u8981\u4f20\u4e00\u6b21&#xff01;<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;output&#034;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<h4>\u56de\u8c03\u5730\u72f1\u7684\u4e03\u5927\u7f6a\u72b6<\/h4>\n<li>\u91cd\u590d\u7ed1\u5b9a&#xff1a;\u540c\u6837\u7684\u56de\u8c03\u5904\u7406\u5668\u8981\u5728 7 \u4e2a\u4e0d\u540c\u7684\u5730\u65b9\u91cd\u590d\u7ed1\u5b9a<\/li>\n<li>\u4fb5\u5165\u5f0f\u8bbe\u8ba1&#xff1a;Agent \u5185\u90e8\u903b\u8f91\u88ab\u56de\u8c03\u4ee3\u7801\u4e25\u91cd\u6c61\u67d3<\/li>\n<li>\u9057\u6f0f\u98ce\u9669&#xff1a;\u53ea\u8981\u6f0f\u6389\u4e00\u4e2a\u7ed1\u5b9a\u70b9&#xff0c;\u5c31\u4f1a\u4e22\u5931\u91cd\u8981\u7684\u8c03\u8bd5\u4fe1\u606f<\/li>\n<li>\u6027\u80fd\u8d1f\u62c5&#xff1a;\u5927\u91cf\u65e0\u7528\u7684\u56de\u8c03\u89e6\u53d1&#xff0c;\u5373\u4f7f\u4e0d\u9700\u8981\u4e5f\u4f1a\u6267\u884c<\/li>\n<li>\u8c03\u8bd5\u56f0\u96be&#xff1a;\u56de\u8c03\u94fe\u8def\u8fc7\u957f&#xff0c;\u96be\u4ee5\u8ffd\u8e2a\u6267\u884c\u987a\u5e8f<\/li>\n<li>\u7ef4\u62a4\u5669\u68a6&#xff1a;\u4fee\u6539\u56de\u8c03\u903b\u8f91\u9700\u8981\u540c\u65f6\u66f4\u65b0\u591a\u4e2a\u5730\u65b9<\/li>\n<li>\u8026\u5408\u5ea6\u9ad8&#xff1a;\u56de\u8c03\u903b\u8f91\u4e0e\u4e1a\u52a1\u903b\u8f91\u7d27\u5bc6\u8026\u5408&#xff0c;\u65e0\u6cd5\u5206\u79bb<\/li>\n<hr \/>\n<h3>\u7b2c\u4e09\u90e8\u5206&#xff1a;LangChain 1.0 \u4e2d\u95f4\u4ef6\u91cd\u6784\u4ee3\u7801\u793a\u4f8b<\/h3>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u770b\u770b\u5982\u4f55\u7528 LangChain 1.0 \u7684\u4e2d\u95f4\u4ef6\u4f18\u96c5\u5730\u89e3\u51b3\u540c\u6837\u7684\u95ee\u9898&#xff1a;<\/p>\n<p><span class=\"token keyword\">from<\/span> langchain<span class=\"token punctuation\">.<\/span>agents <span class=\"token keyword\">import<\/span> create_agent<br \/>\n<span class=\"token keyword\">from<\/span> langchain<span class=\"token punctuation\">.<\/span>agents<span class=\"token punctuation\">.<\/span>middleware <span class=\"token keyword\">import<\/span> AgentMiddleware<br \/>\n<span class=\"token keyword\">from<\/span> typing <span class=\"token keyword\">import<\/span> Callable<span class=\"token punctuation\">,<\/span> Any<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ThoughtMiddleware<\/span><span class=\"token punctuation\">(<\/span>AgentMiddleware<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;<br \/>\n    Middleware to capture agent thoughts and tool observations<br \/>\n    Replaces the old MyBaseCallbackHandler with elegance<br \/>\n    &#034;&#034;&#034;<\/span><br \/>\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">__init__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> callback<span class=\"token punctuation\">:<\/span> Callable<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">[<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>callback <span class=\"token operator\">&#061;<\/span> callback<\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">wrap_model_call<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> request<span class=\"token punctuation\">,<\/span> handler<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u62e6\u622a\u6a21\u578b\u8c03\u7528 &#8211; \u4f18\u96c5\u5730\u6355\u83b7\u601d\u8003\u8fc7\u7a0b<\/span><br \/>\n        response <span class=\"token operator\">&#061;<\/span> handler<span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><br \/>\n        content <span class=\"token operator\">&#061;<\/span> response<span class=\"token punctuation\">.<\/span>content <span class=\"token keyword\">if<\/span> <span class=\"token builtin\">hasattr<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;content&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">)<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>callback<span class=\"token punctuation\">(<\/span>content<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u5c06\u601d\u8003\u8fc7\u7a0b\u4f20\u9012\u7ed9\u7528\u6237<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> response<\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">wrap_tool_call<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> request<span class=\"token punctuation\">,<\/span> handler<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u62e6\u622a\u5de5\u5177\u8c03\u7528 &#8211; \u4f18\u96c5\u5730\u6355\u83b7\u89c2\u5bdf\u7ed3\u679c<\/span><br \/>\n        response <span class=\"token operator\">&#061;<\/span> handler<span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>callback<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;obversation: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>response<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u683c\u5f0f\u5316\u89c2\u5bdf\u7ed3\u679c<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> response<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Agent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">__init__<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> system_setup<span class=\"token punctuation\">:<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> user_prompt<span class=\"token punctuation\">:<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> llm_name<span class=\"token punctuation\">:<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> thought_call_back<span class=\"token punctuation\">:<\/span>Callable<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>user_prompt <span class=\"token operator\">&#061;<\/span> user_prompt<\/p>\n<p>        <span class=\"token comment\"># \u5927\u6a21\u578b\u521d\u59cb\u5316 &#8211; \u4fdd\u6301\u7b80\u6d01<\/span><br \/>\n        llm <span class=\"token operator\">&#061;<\/span> self<span class=\"token punctuation\">.<\/span>get_llm<span class=\"token punctuation\">(<\/span>llm_name<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u521d\u59cb\u5316 Middleware &#8211; \u4e00\u884c\u4ee3\u7801\u641e\u5b9a\u6240\u6709\u62e6\u622a<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>middleware <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span>ThoughtMiddleware<span class=\"token punctuation\">(<\/span>thought_call_back<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>        <span class=\"token comment\"># \u521b\u5efa Agent &#8211; LangChain 1.0 \u7684\u4f18\u96c5\u65b9\u5f0f<\/span><br \/>\n        <span class=\"token comment\"># \u4e00\u884c\u4ee3\u7801\u66ff\u6362\u6389 initialize_agent &#043; AgentExecutor \u7684\u590d\u6742\u7ec4\u5408<\/span><br \/>\n        self<span class=\"token punctuation\">.<\/span>agent_runner <span class=\"token operator\">&#061;<\/span> create_agent<span class=\"token punctuation\">(<\/span><br \/>\n            model<span class=\"token operator\">&#061;<\/span>llm<span class=\"token punctuation\">,<\/span><br \/>\n            tools<span class=\"token operator\">&#061;<\/span>tools<span class=\"token punctuation\">,<\/span><br \/>\n            system_prompt<span class=\"token operator\">&#061;<\/span>system_setup<span class=\"token punctuation\">,<\/span>  <span class=\"token comment\"># \u7cfb\u7edf\u63d0\u793a\u8bcd\u76f4\u63a5\u53c2\u6570\u5316<\/span><br \/>\n            middleware<span class=\"token operator\">&#061;<\/span>self<span class=\"token punctuation\">.<\/span>middleware   <span class=\"token comment\"># \u4e2d\u95f4\u4ef6\u5217\u8868&#xff0c;\u53ef\u6269\u5c55<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">get_llm<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">,<\/span> llm_name<span class=\"token punctuation\">:<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        llm_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;claude-sonnet-4&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;gemini-2.5-flash&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;gemini-2.5-pro&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;gemini-3-pro-preview&#034;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token keyword\">assert<\/span> llm_name <span class=\"token keyword\">in<\/span> llm_list<span class=\"token punctuation\">,<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;llm\u5fc5\u987b\u662f<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>llm_list<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u4e4b\u4e00, \u4f60\u4f20\u5165\u7684\u662f<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>llm_name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> llm_name <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#034;claude-sonnet-4&#034;<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            llm <span class=\"token operator\">&#061;<\/span> ClaudeSonnet4<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>get_llm<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">elif<\/span> llm_name <span class=\"token keyword\">in<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;gemini-2.5-pro&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;gemini-3-pro-preview&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;gemini-2.5-flash&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            llm <span class=\"token operator\">&#061;<\/span> GeminiSeries<span class=\"token punctuation\">(<\/span>llm_name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>get_llm<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">raise<\/span> ValueError<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u4e0d\u652f\u6301\u7684\u6a21\u578b:<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>llm_name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> llm<\/p>\n<p>    <span class=\"token keyword\">def<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span>self<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u7b80\u6d01\u7684\u8c03\u7528\u65b9\u5f0f &#8211; \u65e0\u9700\u91cd\u590d\u4f20\u9012\u56de\u8c03<\/span><br \/>\n        result <span class=\"token operator\">&#061;<\/span> self<span class=\"token punctuation\">.<\/span>agent_runner<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#034;messages&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;role&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;user&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;content&#034;<\/span><span class=\"token punctuation\">:<\/span> self<span class=\"token punctuation\">.<\/span>user_prompt<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;output&#034;<\/span><span class=\"token punctuation\">,<\/span> result<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u4f7f\u7528\u793a\u4f8b &#8211; \u7b80\u6d01\u4f18\u96c5<\/span><br \/>\n<span class=\"token keyword\">if<\/span> __name__ <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#034;__main__&#034;<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">def<\/span> <span class=\"token function\">thought_callback<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;[Middleware Log]: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>data<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    agent <span class=\"token operator\">&#061;<\/span> Agent<span class=\"token punctuation\">(<\/span><br \/>\n        system_setup<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u4f60\u662f\u4e00\u4e2aai\u52a9\u624b&#xff0c;\u5e2e\u52a9\u56de\u7b54\u7528\u6237\u7684\u95ee\u9898&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        user_prompt<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u73b0\u5728\u51e0\u70b9\u4e86&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        llm_name<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;gemini-3-pro-preview&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        thought_call_back<span class=\"token operator\">&#061;<\/span>thought_callback<br \/>\n    <span class=\"token punctuation\">)<\/span><\/p>\n<p>    result <span class=\"token operator\">&#061;<\/span> agent<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Final Result: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>result<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h4>\u4e2d\u95f4\u4ef6\u91cd\u6784\u7684\u4e03\u5927\u4f18\u52bf<\/h4>\n<li>\u4e00\u884c\u914d\u7f6e&#xff1a;\u6240\u6709\u62e6\u622a\u903b\u8f91\u96c6\u4e2d\u5728\u4e00\u4e2a Middleware \u7c7b\u4e2d<\/li>\n<li>\u975e\u4fb5\u5165\u5f0f\u8bbe\u8ba1&#xff1a;Agent \u6838\u5fc3\u903b\u8f91\u4fdd\u6301\u7eaf\u51c0&#xff0c;\u4e0d\u53d7\u56de\u8c03\u6c61\u67d3<\/li>\n<li>\u96f6\u9057\u6f0f\u98ce\u9669&#xff1a;Middleware \u81ea\u52a8\u62e6\u622a\u6240\u6709\u76f8\u5173\u8c03\u7528&#xff0c;\u65e0\u9700\u624b\u52a8\u7ed1\u5b9a<\/li>\n<li>\u6027\u80fd\u4f18\u5316&#xff1a;\u53ea\u5728\u9700\u8981\u65f6\u6267\u884c\u62e6\u622a\u903b\u8f91&#xff0c;\u907f\u514d\u65e0\u7528\u56de\u8c03<\/li>\n<li>\u8c03\u8bd5\u53cb\u597d&#xff1a;\u6e05\u6670\u7684\u62e6\u622a\u70b9&#xff0c;\u6613\u4e8e\u8ffd\u8e2a\u548c\u8c03\u8bd5<\/li>\n<li>\u7ef4\u62a4\u7b80\u5355&#xff1a;\u4fee\u6539\u62e6\u622a\u903b\u8f91\u53ea\u9700\u66f4\u65b0 Middleware \u7c7b<\/li>\n<li>\u9ad8\u5ea6\u89e3\u8026&#xff1a;\u62e6\u622a\u903b\u8f91\u4e0e\u4e1a\u52a1\u903b\u8f91\u5b8c\u5168\u5206\u79bb&#xff0c;\u53ef\u72ec\u7acb\u6d4b\u8bd5<\/li>\n<hr \/>\n<h3>\u7b2c\u56db\u90e8\u5206&#xff1a;\u56de\u8c03\u51fd\u6570\u4e0e\u4e2d\u95f4\u4ef6\u5bf9\u6bd4\u5206\u6790<\/h3>\n<h4>\u67b6\u6784\u8bbe\u8ba1\u5bf9\u6bd4<\/h4>\n<table>\n<tr>\u7279\u6027LangChain 0.3 \u56de\u8c03LangChain 1.0 \u4e2d\u95f4\u4ef6<\/tr>\n<tbody>\n<tr>\n<td>\u8bbe\u8ba1\u6a21\u5f0f<\/td>\n<td>\u4fb5\u5165\u5f0f\u56de\u8c03<\/td>\n<td>\u975e\u4fb5\u5165\u5f0f\u5207\u9762<\/td>\n<\/tr>\n<tr>\n<td>\u4ee3\u7801\u8026\u5408<\/td>\n<td>\u9ad8\u8026\u5408&#xff0c;\u4e1a\u52a1\u903b\u8f91\u88ab\u6c61\u67d3<\/td>\n<td>\u4f4e\u8026\u5408&#xff0c;\u4fdd\u6301\u4e1a\u52a1\u7eaf\u51c0<\/td>\n<\/tr>\n<tr>\n<td>\u914d\u7f6e\u590d\u6742\u5ea6<\/td>\n<td>\u9700\u8981\u57287\u4e2a\u5730\u65b9\u91cd\u590d\u7ed1\u5b9a<\/td>\n<td>\u4e00\u884c\u4ee3\u7801\u914d\u7f6e\u6240\u6709\u62e6\u622a<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u7ef4\u62a4\u6027<\/td>\n<td>\u4fee\u6539\u9700\u8981\u66f4\u65b0\u591a\u4e2a\u7ed1\u5b9a\u70b9<\/td>\n<td>\u4fee\u6539\u53ea\u9700\u66f4\u65b0Middleware\u7c7b<\/td>\n<\/tr>\n<tr>\n<td>\u6269\u5c55\u6027<\/td>\n<td>\u56f0\u96be&#xff0c;\u5bb9\u6613\u9057\u6f0f\u7ed1\u5b9a\u70b9<\/td>\n<td>\u7b80\u5355&#xff0c;\u53ef\u53e0\u52a0\u591a\u4e2a\u4e2d\u95f4\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u8c03\u8bd5\u96be\u5ea6<\/td>\n<td>\u56de\u8c03\u94fe\u8def\u8fc7\u957f&#xff0c;\u96be\u4ee5\u8ffd\u8e2a<\/td>\n<td>\u6e05\u6670\u7684\u62e6\u622a\u70b9&#xff0c;\u6613\u4e8e\u8c03\u8bd5<\/td>\n<\/tr>\n<tr>\n<td>\u6027\u80fd\u5f71\u54cd<\/td>\n<td>\u5927\u91cf\u65e0\u7528\u56de\u8c03\u89e6\u53d1<\/td>\n<td>\u53ea\u5728\u9700\u8981\u65f6\u6267\u884c\u62e6\u622a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u5b9e\u9645\u5f00\u53d1\u4f53\u9a8c\u5bf9\u6bd4<\/h4>\n<p>LangChain 0.3 \u56de\u8c03\u5730\u72f1&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u5f00\u53d1\u8005\u5185\u5fc3OS&#xff1a;&#034;\u6211\u8981\u5728\u54ea\u91cc\u7ed1\u5b9a\u56de\u8c03&#xff1f;&#034;<\/span><br \/>\n<span class=\"token comment\"># &#034;\u5de5\u5177\u8981\u7ed1\u5b9a&#xff0c;Agent\u8981\u7ed1\u5b9a&#xff0c;\u94fe\u8981\u7ed1\u5b9a&#xff0c;\u6267\u884c\u5668\u8fd8\u8981\u7ed1\u5b9a&#8230;&#034;<\/span><br \/>\n<span class=\"token comment\"># &#034;\u5b8c\u4e86&#xff0c;\u6211\u6f0f\u6389\u4e86\u4e00\u4e2a\u7ed1\u5b9a\u70b9&#xff0c;\u8c03\u8bd5\u4fe1\u606f\u4e0d\u5b8c\u6574&#xff01;&#034;<\/span><br \/>\n<span class=\"token comment\"># &#034;\u4fee\u6539\u56de\u8c03\u903b\u8f91&#xff1f;\u6211\u8981\u65397\u4e2a\u5730\u65b9&#8230;&#034;<\/span><\/p>\n<p>LangChain 1.0 \u4e2d\u95f4\u4ef6\u5929\u5802&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u5f00\u53d1\u8005\u5185\u5fc3OS&#xff1a;&#034;\u6211\u53ea\u9700\u8981\u5199\u4e00\u4e2aMiddleware\u7c7b&#034;<\/span><br \/>\n<span class=\"token comment\"># &#034;\u4e00\u884c\u4ee3\u7801\u5c31\u80fd\u641e\u5b9a\u6240\u6709\u62e6\u622a&#034;<\/span><br \/>\n<span class=\"token comment\"># &#034;\u60f3\u52a0\u65b0\u529f\u80fd&#xff1f;\u518d\u5199\u4e00\u4e2aMiddleware\u53e0\u52a0\u4e0a\u53bb&#034;<\/span><br \/>\n<span class=\"token comment\"># &#034;\u8c03\u8bd5&#xff1f;\u770bMiddleware\u7684\u62e6\u622a\u70b9\u5c31\u884c\u4e86&#034;<\/span><\/p>\n<h4>\u4e2d\u95f4\u4ef6\u7684\u9769\u547d\u6027\u610f\u4e49<\/h4>\n<p>\u4ece&#034;\u56de\u8c03\u5730\u72f1&#034;\u5230&#034;\u4e2d\u95f4\u4ef6\u5929\u5802&#034;&#xff0c;\u8fd9\u4e0d\u4ec5\u4ec5\u662fAPI\u7684\u5347\u7ea7&#xff0c;\u66f4\u662f\u601d\u7ef4\u65b9\u5f0f\u7684\u8f6c\u53d8&#xff1a;<\/p>\n<li>\u4ece\u88ab\u52a8\u5230\u4e3b\u52a8&#xff1a;\u4ee5\u524d\u662f&#034;\u54ea\u91cc\u9700\u8981\u56de\u8c03\u5c31\u7ed1\u54ea\u91cc&#034;&#xff0c;\u73b0\u5728\u662f&#034;\u6211\u60f3\u62e6\u622a\u4ec0\u4e48\u5c31\u5199\u4ec0\u4e48Middleware&#034;<\/li>\n<li>\u4ece\u5206\u6563\u5230\u96c6\u4e2d&#xff1a;\u4ee5\u524d\u56de\u8c03\u903b\u8f91\u5206\u6563\u5728\u5404\u4e2a\u89d2\u843d&#xff0c;\u73b0\u5728\u6240\u6709\u62e6\u622a\u903b\u8f91\u96c6\u4e2d\u7ba1\u7406<\/li>\n<li>\u4ece\u8026\u5408\u5230\u89e3\u8026&#xff1a;\u4ee5\u524d\u4e1a\u52a1\u903b\u8f91\u548c\u56de\u8c03\u903b\u8f91\u7ea0\u7f20\u4e0d\u6e05&#xff0c;\u73b0\u5728\u4e24\u8005\u5b8c\u5168\u5206\u79bb<\/li>\n<li>\u4ece\u590d\u6742\u5230\u7b80\u5355&#xff1a;\u4ee5\u524d\u9700\u8981\u8bb0\u5fc67\u4e2a\u7ed1\u5b9a\u70b9&#xff0c;\u73b0\u5728\u53ea\u9700\u8981\u8bb0\u4f4f&#034;\u5199Middleware&#xff0c;\u52a0\u5217\u8868&#034;<\/li>\n<h4>\u6700\u4f73\u5b9e\u8df5\u5efa\u8bae<\/h4>\n<li>\u6bcf\u4e2aMiddleware\u53ea\u505a\u4e00\u4ef6\u4e8b&#xff1a;\u65e5\u5fd7Middleware\u53ea\u8d1f\u8d23\u65e5\u5fd7&#xff0c;\u5b89\u5168Middleware\u53ea\u8d1f\u8d23\u5b89\u5168<\/li>\n<li>Middleware\u547d\u540d\u8981\u6e05\u6670&#xff1a;ThoughtMiddleware\u3001SafetyMiddleware\u3001LoggingMiddleware<\/li>\n<li>\u4fdd\u6301Middleware\u7eaf\u51c0&#xff1a;\u4e0d\u8981\u5728Middleware\u91cc\u5199\u4e1a\u52a1\u903b\u8f91<\/li>\n<li>\u5229\u7528\u7ec4\u5408\u800c\u975e\u7ee7\u627f&#xff1a;\u901a\u8fc7\u53e0\u52a0\u591a\u4e2aMiddleware\u5b9e\u73b0\u590d\u6742\u529f\u80fd<\/li>\n<li>\u6d4b\u8bd5\u4f60\u7684Middleware&#xff1a;Middleware\u53ef\u4ee5\u72ec\u7acb\u6d4b\u8bd5&#xff0c;\u786e\u4fdd\u62e6\u622a\u903b\u8f91\u6b63\u786e<\/li>\n<hr \/>\n<h3>\u603b\u7ed3<\/h3>\n<p>LangChain 1.0\u7684\u4e2d\u95f4\u4ef6\u7cfb\u7edf\u5f7b\u5e95\u89e3\u51b3\u4e860.3\u7248\u672c\u7684&#034;\u56de\u8c03\u5730\u72f1&#034;\u95ee\u9898&#xff0c;\u8ba9AI Agent\u7684\u5f00\u53d1\u4ece&#034;\u5230\u5904\u7ed1\u5b9a\u56de\u8c03&#034;\u7684\u5669\u68a6&#xff0c;\u53d8\u6210\u4e86&#034;\u5199Middleware&#xff0c;\u52a0\u5217\u8868&#034;\u7684\u4f18\u96c5\u4f53\u9a8c\u3002<\/p>\n<p>\u4e2d\u95f4\u4ef6 &#061; \u63a7\u5236 &#043; \u4f18\u96c5 &#043; \u53ef\u7ef4\u62a4<\/p>\n<p>\u8fd9\u5c31\u662fLangChain 1.0\u5e26\u7ed9\u6211\u4eec\u7684\u9769\u547d\u6027\u6539\u53d8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>langchain1.0\u4e2d\u95f4\u4ef6LangChain 1.0 \u4e2d\u95f4\u4ef6\u6982\u5ff5\u4e0e\u5bf9\u6bd4\u5206\u6790\u7b2c\u4e00\u90e8\u5206&#xff1a;LangChain 1.0 \u4e2d\u95f4\u4ef6\u6982\u5ff5\u89e3\u6790\u4ec0\u4e48\u662f\u4e2d\u95f4\u4ef6&#xff1f;\u4e2d\u95f4\u4ef6\u7684\u6838\u5fc3\u4f18\u52bf\u56db\u5927\u6cd5\u5b9d\u94a9\u5b50\u51fd\u6570\u7b2c\u4e8c\u90e8\u5206&#xff1a;LangChain 0.3 \u56de\u8c03\u5730\u72f1\u4ee3\u7801\u793a\u4f8b\u56de\u8c03\u5730\u72f1\u7684\u4e03\u5927\u7f6a\u72b6\u7b2c\u4e09\u90e8\u5206&#xff1a;LangChain 1.0 \u4e2d\u95f4\u4ef6\u91cd\u6784\u4ee3\u7801\u793a\u4f8b\u4e2d\u95f4\u4ef6\u91cd\u6784\u7684\u4e03\u5927\u4f18\u52bf\u7b2c\u56db\u90e8\u5206&#xff1a;\u56de\u8c03\u51fd\u6570\u4e0e\u4e2d\u95f4\u4ef6\u5bf9\u6bd4\u5206\u6790\u67b6\u6784\u8bbe\u8ba1\u5bf9\u6bd4\u5b9e\u9645\u5f00\u53d1\u4f53\u9a8c\u5bf9\u6bd4\u4e2d\u95f4\u4ef6\u7684\u9769\u547d\u6027\u610f\u4e49\u6700\u4f73\u5b9e<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[668,50,371],"topic":[],"class_list":["post-62902","post","type-post","status-publish","format-standard","hentry","category-server","tag-668","tag-50","tag-371"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010AI\u5b66\u4e60\u4ece\u96f6\u81f3\u58f9\u3011langchain1.0\u4e2d\u95f4\u4ef6 - 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