{"id":7377,"date":"2024-08-01T15:43:49","date_gmt":"2024-08-01T07:43:49","guid":{"rendered":"https:\/\/aict.nkust.edu.tw\/digitrans\/?p=7377"},"modified":"2024-12-13T21:12:38","modified_gmt":"2024-12-13T13:12:38","slug":"langchain-%e8%88%87-langgraph-%e5%b7%a5%e5%85%b7%e5%af%a6%e6%88%b0%e6%8e%a2%e8%a8%8e%ef%bc%9aai-%e6%a8%a1%e5%9e%8b%e7%9a%84%e7%a8%8b%e5%bc%8f%e5%91%bc%e5%8f%ab%e8%83%bd%e5%8a%9b","status":"publish","type":"post","link":"https:\/\/aict.nkust.edu.tw\/digitrans\/?p=7377","title":{"rendered":"LangChain \u8207 LangGraph \u5de5\u5177\u5be6\u6230\u63a2\u8a0e\uff1aAI \u6a21\u578b\u7684\u7a0b\u5f0f\u547c\u53eb\u80fd\u529b"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">2024-08 |hengshiousheu<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u6458\u8981<br>\u9019\u7bc7\u6587\u7ae0\u63a2\u8a0e\u4e86 LangChain \u548c LangGraph \u9019\u5169\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u5b83\u5011\u80fd\u5920\u8ce6\u4e88 AI \u6a21\u578b\u547c\u53eb\u5916\u90e8\u7a0b\u5f0f\u78bc\u7684\u80fd\u529b\uff0c\u9032\u800c\u64f4\u5c55\u5176\u529f\u80fd\u4e26\u5be6\u73fe\u66f4\u667a\u80fd\u7684\u4ea4\u4e92\u3002\u6587\u7ae0\u9996\u5148\u4ecb\u7d39\u4e86\u300c\u5de5\u5177\u300d\u7684\u6982\u5ff5\uff0c\u4e26\u8aaa\u660e\u5176\u5982\u4f55\u5145\u7576 AI \u6a21\u578b\u8207\u5916\u90e8\u4e16\u754c\u6e9d\u901a\u7684\u6a4b\u6a11\u3002\u63a5\u8457\uff0c\u6587\u7ae0\u6df1\u5165\u89e3\u6790\u4e86\u5728 LangChain \u4e2d\u5275\u5efa\u5de5\u5177\u7684\u5404\u7a2e\u65b9\u6cd5\uff0c\u5f9e\u7c21\u55ae\u7684\u51fd\u6578\u88dd\u98fe\u5668\u5230\u66f4\u9748\u6d3b\u7684 StructuredTool\uff0c\u4e26\u5f37\u8abf\u932f\u8aa4\u8655\u7406\u5728\u78ba\u4fdd AI \u61c9\u7528\u7a69\u5065\u6027\u7684\u91cd\u8981\u6027\u3002\u6587\u7ae0\u6700\u5f8c\u5f15\u5165 LangGraph\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 ToolNode \u4f86\u6574\u5408\u5916\u90e8\u5de5\u5177\uff0c\u4e26\u901a\u904e\u4e00\u500b\u7c21\u55ae\u7684\u804a\u5929\u6a5f\u5668\u4eba\u7bc4\u4f8b\u8aaa\u660e\u4e86\u5176\u5be6\u969b\u61c9\u7528\u3002\u900f\u904e\u672c\u6587\u7684\u63a2\u8a0e\uff0c\u6211\u5011\u53ef\u4ee5\u5b78\u7fd2\u5230\u5982\u4f55\u5229\u7528 LangChain \u548c LangGraph \u6253\u9020\u529f\u80fd\u66f4\u5f37\u5927\u3001\u4e92\u52d5\u66f4\u81ea\u7136\u7684 AI \u61c9\u7528\u3002<\/p>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\">\u524d\u8a00<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4eba\u5de5\u667a\u6167\u548c\u81ea\u7136\u8a9e\u8a00\u8655\u7406\u9818\u57df\u4e2d\uff0cLangChain \u548c LangGraph \u662f\u5169\u500b\u5099\u53d7\u77da\u76ee\u7684\u5de5\u5177\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u8b93 AI \u6a21\u578b\u547c\u53eb\u60a8\u7684\u7a0b\u5f0f\uff0c\u64f4\u5c55\u5176\u529f\u80fd\u4e26\u5be6\u73fe\u66f4\u667a\u80fd\u7684\u4ea4\u4e92\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">1. Tools \u7684\u672c\u8cea\uff1aAI \u4ee3\u7406\u7684\u529f\u80fd\u64f4\u5c55\u5668<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Tools\uff08\u5de5\u5177\uff09\u662f\u5c08\u9580\u8a2d\u8a08\u7d66 AI \u6a21\u578b\u4f7f\u7528\u7684\u529f\u80fd\u55ae\u5143\u3002\u5b83\u5011\u63a5\u53d7\u6a21\u578b\u751f\u6210\u7684\u8f38\u5165\uff0c\u4e26\u5c07\u8f38\u51fa\u56de\u50b3\u7d66\u6a21\u578b\u4f7f\u7528\u3002\u7576\u60a8\u5e0c\u671b\u6a21\u578b\u80fd\u5920\u63a7\u5236\u60a8\u7a0b\u5f0f\u78bc\u7684\u67d0\u4e9b\u90e8\u5206\uff0c\u6216\u662f\u547c\u53eb\u5916\u90e8 API \u6642\uff0cTools \u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.1 Tools \u7684\u6838\u5fc3\u7d44\u6210<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u500b\u5178\u578b\u7684 Tool \u901a\u5e38\u5305\u542b\u4ee5\u4e0b\u5e7e\u500b\u95dc\u9375\u5143\u7d20\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5de5\u5177\u540d\u7a31\uff08name\uff09<\/li>\n\n\n\n<li>\u5de5\u5177\u529f\u80fd\u63cf\u8ff0\uff08description\uff09<\/li>\n\n\n\n<li>\u5b9a\u7fa9\u5de5\u5177\u8f38\u5165\u7684 JSON \u7d50\u69cb\uff08JSON schema\uff09<\/li>\n\n\n\n<li>\u57f7\u884c\u529f\u80fd\u7684\u51fd\u5f0f\uff08\u53ef\u9078\u64c7\u6027\u5730\u5305\u542b\u5176\u975e\u540c\u6b65\u7248\u672c\uff09<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576 Tool \u7d81\u5b9a\u5230\u6a21\u578b\u6642\uff0c\u5176\u540d\u7a31\u3001\u63cf\u8ff0\u548c JSON \u7d50\u69cb\u6703\u4f5c\u70ba\u4e0a\u4e0b\u6587\u63d0\u4f9b\u7d66\u6a21\u578b\u3002\u7d66\u5b9a\u4e00\u7cfb\u5217\u5de5\u5177\u548c\u4e00\u7d44\u6307\u4ee4\uff0c\u6a21\u578b\u53ef\u4ee5\u8acb\u6c42\u4f7f\u7528\u7279\u5b9a\u8f38\u5165\u547c\u53eb\u4e00\u500b\u6216\u591a\u500b\u5de5\u5177\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.2 Tools \u7684\u5be6\u969b\u61c9\u7528\u5834\u666f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8b93\u6211\u5011\u4f86\u770b\u4e00\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\uff0c\u5047\u8a2d\u6211\u5011\u8981\u5275\u5efa\u4e00\u500b\u67e5\u8a62\u53f0\u7063\u5929\u6c23\u7684\u5de5\u5177\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@tool\ndef query_taiwan_weather(city: str, date: Optional&#91;str] = None) -&gt; str:\n    \"\"\"\n    \u67e5\u8a62\u53f0\u7063\u7279\u5b9a\u57ce\u5e02\u7684\u5929\u6c23\u60c5\u6cc1\u3002\n\n    \u53c3\u6578:\n    city (str): \u8981\u67e5\u8a62\u5929\u6c23\u7684\u57ce\u5e02\u540d\u7a31\uff0c\u4f8b\u5982 \"\u53f0\u5317\"\u3001\"\u9ad8\u96c4\" \u7b49\u3002\n    date (str, \u53ef\u9078): \u8981\u67e5\u8a62\u7684\u65e5\u671f\uff0c\u683c\u5f0f\u70ba \"YYYY-MM-DD\"\u3002\u5982\u679c\u4e0d\u63d0\u4f9b\uff0c\u5247\u67e5\u8a62\u7576\u5929\u5929\u6c23\u3002\n\n    \u8fd4\u56de:\n    str: \u5305\u542b\u5929\u6c23\u4fe1\u606f\u7684\u5b57\u7b26\u4e32\u3002\n    \"\"\"\n    <em># \u9019\u88e1\u61c9\u8a72\u662f\u5be6\u969b\u7684\u5929\u6c23 API \u8abf\u7528\u908f\u8f2f<\/em>\n    <em># \u70ba\u4e86\u793a\u4f8b\uff0c\u6211\u5011\u8fd4\u56de\u4e00\u500b\u6a21\u64ec\u7684\u7d50\u679c<\/em>\n    return f\"{city} \u5728 {date or '\u4eca\u5929'} \u7684\u5929\u6c23\u6674\u6717\uff0c\u6eab\u5ea6 25\u00b0C\uff0c\u9069\u5408\u5916\u51fa\u6d3b\u52d5\u3002\"\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8b93\u6211\u5011\u770b\u770b\u9019\u500b\u5de5\u5177\u7684 JSON Schema\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>rich.print(query_taiwan_weather.args_schema.schema())\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/SB3u3NO.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\uff0c\u6211\u5011\u4f86\u4f7f\u7528\u9019\u500b\u5de5\u5177\uff0c\u4e26\u67e5\u770b\u8fd4\u56de\u7684\u8a0a\u606f\u7d50\u69cb\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from langchain_openai import ChatOpenAI\nllm = ChatOpenAI(model=\"gpt-3.5-turbo-0125\")\nllm_with_weather = llm.bind_tools(&#91;query_taiwan_weather])\nresponse = llm_with_weather.invoke(\"\u8acb\u544a\u8a34\u6211\u53f0\u5317\u660e\u5929\u7684\u5929\u6c23\u5982\u4f55\uff1f\")\nrich.print(response)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/VOhm1fw.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83c\udf1f \u4eae\u9ede\uff1a\u901a\u904e\u4f7f\u7528 Tools\uff0c\u6211\u5011\u53ef\u4ee5\u5927\u5927\u64f4\u5c55 AI \u6a21\u578b\u7684\u80fd\u529b\uff0c\u4f7f\u5176\u80fd\u5920\u57f7\u884c\u66f4\u52a0\u8907\u96dc\u548c\u5177\u9ad4\u7684\u4efb\u52d9\uff0c\u540c\u6642\u4fdd\u6301\u9748\u6d3b\u6027\u548c\u53ef\u63a7\u6027\u3002<\/p>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\">2. LangChain Tools \u5275\u5efa\u6307\u5357<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u6211\u5011\u5df2\u7d93\u4e86\u89e3\u4e86 Tools \u5728 LangChain \u4e2d\u7684\u89d2\u8272\uff0c\u8b93\u6211\u5011\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5275\u5efa\u9019\u4e9b Tools\u3002\u7576\u60a8\u5728\u69cb\u5efa\u4e00\u500b agent\uff08\u4ee3\u7406\uff09\u6642\uff0c\u63d0\u4f9b\u4e00\u7cfb\u5217\u5b83\u53ef\u4ee5\u4f7f\u7528\u7684 Tools \u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2.1 Tool \u7684\u95dc\u9375\u5c6c\u6027<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u662f\u69cb\u6210 Tool \u7684\u4e3b\u8981\u5c6c\u6027\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5c6c\u6027<\/th><th>\u578b\u5225<\/th><th>\u8aaa\u660e<\/th><\/tr><\/thead><tbody><tr><td>name<\/td><td>\u5b57\u4e32<\/td><td>\u5fc5\u9808\u5728\u63d0\u4f9b\u7d66 LLM \u6216\u4ee3\u7406\u7684\u4e00\u7d44\u5de5\u5177\u4e2d\u662f\u552f\u4e00\u7684\u3002<\/td><\/tr><tr><td>description<\/td><td>\u5b57\u4e32<\/td><td>\u63cf\u8ff0\u9019\u500b\u5de5\u5177\u7684\u529f\u80fd\u3002\u4f5c\u70ba LLM \u6216\u4ee3\u7406\u7684\u4e0a\u4e0b\u6587\u4f7f\u7528\u3002<\/td><\/tr><tr><td>args_schema<\/td><td>Pydantic BaseModel<\/td><td>\u9078\u64c7\u6027\u4f46\u5efa\u8b70\u4f7f\u7528\uff0c\u53ef\u7528\u65bc\u63d0\u4f9b\u66f4\u591a\u8cc7\u8a0a\u6216\u5c0d\u9810\u671f\u53c3\u6578\u9032\u884c\u9a57\u8b49\u3002<\/td><\/tr><tr><td>return_direct<\/td><td>\u5e03\u6797\u503c<\/td><td>\u50c5\u8207\u4ee3\u7406\u76f8\u95dc\u3002\u7576\u8a2d\u70ba True \u6642\uff0c\u5728\u8abf\u7528\u7d66\u5b9a\u5de5\u5177\u5f8c\uff0c\u4ee3\u7406\u6703\u505c\u6b62\u4e26\u76f4\u63a5\u5c07\u7d50\u679c\u8fd4\u56de\u7d66\u4f7f\u7528\u8005\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">2.2 \u5275\u5efa Tools \u7684\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LangChain \u652f\u6301\u4ee5\u4e0b\u5e7e\u7a2e\u5275\u5efa Tools \u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5f9e\u51fd\u5f0f\u5275\u5efa<\/strong>\uff1a\u9019\u662f\u6700\u7c21\u55ae\u7684\u65b9\u6cd5\uff0c\u9069\u7528\u65bc\u5927\u591a\u6578\u4f7f\u7528\u5834\u666f\u3002<\/li>\n\n\n\n<li><strong>\u5f9e LangChain Runnables \u5275\u5efa<\/strong>\uff1a\u9069\u7528\u65bc\u66f4\u8907\u96dc\u7684\u908f\u8f2f\u3002<\/li>\n\n\n\n<li><strong>\u901a\u904e\u7e7c\u627f BaseTool \u985e<\/strong>\uff1a\u9019\u662f\u6700\u9748\u6d3b\u7684\u65b9\u6cd5\uff0c\u63d0\u4f9b\u4e86\u6700\u5927\u7a0b\u5ea6\u7684\u63a7\u5236\uff0c\u4f46\u9700\u8981\u66f4\u591a\u7684\u4ee3\u78bc\u548c\u52aa\u529b\u3002<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udca1 \u5c08\u696d\u63d0\u793a\uff1a\u6a21\u578b\u7684\u8868\u73fe\u6703\u56e0 Tools \u7684\u540d\u7a31\u3001\u63cf\u8ff0\u548c JSON \u7d50\u69cb\u7684\u9078\u64c7\u800c\u6709\u6240\u4e0d\u540c\u3002\u7cbe\u5fc3\u8a2d\u8a08\u9019\u4e9b\u5143\u7d20\u53ef\u4ee5\u986f\u8457\u63d0\u5347\u6a21\u578b\u7684\u6548\u80fd\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">2.3 \u5f9e\u51fd\u6578\u5275\u5efa Tools\uff1a\u7c21\u55ae\u800c\u5f37\u5927<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.3.1 @tool \u88dd\u98fe\u5668\uff1a\u7c21\u5316 LangChain \u81ea\u8a02\u5de5\u5177\u7684\u5275\u5efa<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>@tool<\/code>&nbsp;\u88dd\u98fe\u5668\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6975\u70ba\u4fbf\u6377\u7684\u65b9\u5f0f\u4f86\u5b9a\u7fa9\u548c\u5275\u5efa\u81ea\u8a02\u5de5\u5177\u3002\u9019\u500b\u88dd\u98fe\u5668\u7684\u8a2d\u8a08\u7406\u5ff5\u662f\u8b93\u958b\u767c\u8005\u80fd\u5920\u5feb\u901f\u5c07\u666e\u901a\u7684 Python \u51fd\u5f0f\u8f49\u8b8a\u70ba LangChain \u53ef\u8b58\u5225\u548c\u4f7f\u7528\u7684\u5de5\u5177\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u8981\u7279\u9ede\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9810\u8a2d\u4f7f\u7528\u51fd\u5f0f\u540d\u7a31\u4f5c\u70ba\u5de5\u5177\u540d\u7a31<\/li>\n\n\n\n<li>\u4f7f\u7528\u51fd\u5f0f\u7684\u6587\u4ef6\u5b57\u4e32\uff08docstring\uff09\u4f5c\u70ba\u5de5\u5177\u63cf\u8ff0<\/li>\n\n\n\n<li>\u53ef\u4ee5\u89e3\u6790\u51fd\u5f0f\u7684\u578b\u5225\u8a3b\u89e3<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udccc \u6ce8\u610f\u4e8b\u9805: \u78ba\u4fdd\u70ba\u6bcf\u500b\u4f7f\u7528 @tool \u88dd\u98fe\u5668\u7684\u51fd\u5f0f\u63d0\u4f9b\u6e05\u6670\u3001\u8a73\u7d30\u7684\u6587\u4ef6\u5b57\u4e32\uff0c\u4ee5\u4fbf LLM \u6216\u4ee3\u7406\u80fd\u5920\u6b63\u78ba\u4f7f\u7528\u8a72\u5de5\u5177\u3002<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">2.3.1.1 \u57fa\u672c\u7528\u6cd5\u793a\u7bc4<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u67e5\u8a62\u53f0\u7063\u57ce\u5e02\u5929\u6c23\u70ba\u4f8b\uff0c\u5c55\u793a @tool \u7684\u57fa\u672c\u7528\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from langchain.tools import tool\n@tool\ndef get_taiwan_weather(city: str) -&gt; str:\n    \"\"\"\u67e5\u8a62\u53f0\u7063\u7279\u5b9a\u57ce\u5e02\u7684\u5929\u6c23\u72c0\u6cc1\u3002\"\"\"\n    weather_data = {\n        \"\u53f0\u5317\": \"\u6674\u5929\uff0c\u6eab\u5ea628\u00b0C\",\n        \"\u53f0\u4e2d\": \"\u591a\u96f2\uff0c\u6eab\u5ea626\u00b0C\",\n        \"\u9ad8\u96c4\": \"\u9670\u5929\uff0c\u6eab\u5ea630\u00b0C\"\n    }\n    return f\"{city}\u7684\u5929\u6c23\uff1a{weather_data.get(city, '\u66ab\u7121\u8cc7\u6599')}\"\n<em># \u6aa2\u8996\u5de5\u5177\u7684\u76f8\u95dc\u5c6c\u6027<\/em>\nprint(f\"name: {get_taiwan_weather.name}\")\nprint(f\"description: {get_taiwan_weather.description}\")\nprint(f\"args: {get_taiwan_weather.args}\")\n<em># \u4f7f\u7528\u9019\u500b\u5de5\u5177<\/em>\nresult = get_taiwan_weather.run(\"\u53f0\u5317\")\nprint(f\"\u547c\u53eb\u5de5\u5177\u7d50\u679c{result}\")\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/I6S4LR4.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6211\u5011\u4f7f\u7528 @tool \u88dd\u98fe\u4e86 get_taiwan_weather \u51fd\u5f0f\uff0c\u5c07\u5176\u8f49\u63db\u70ba LangChain \u5de5\u5177\u3002<\/li>\n\n\n\n<li>\u51fd\u5f0f\u7684\u6587\u4ef6\u5b57\u4e32\u6210\u70ba\u4e86\u5de5\u5177\u7684\u63cf\u8ff0\u3002<\/li>\n\n\n\n<li>\u51fd\u5f0f\u7684\u53c3\u6578 city: str \u88ab\u81ea\u52d5\u89e3\u6790\u70ba\u5de5\u5177\u7684\u8f38\u5165\u53c3\u6578\u3002<\/li>\n\n\n\n<li>\u6211\u5011\u53ef\u4ee5\u76f4\u63a5\u547c\u53eb\u9019\u500b\u51fd\u5f0f\u4f86\u4f7f\u7528\u5de5\u5177\uff0c\u5c31\u50cf\u547c\u53eb\u666e\u901a\u7684 Python \u51fd\u5f0f\u4e00\u6a23\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2.3.1.2 \u975e\u540c\u6b65\u5be6\u73fe\uff1a\u63d0\u9ad8\u6548\u80fd<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c0d\u65bc\u53ef\u80fd\u9700\u8981\u7b49\u5f85\u5916\u90e8 API \u56de\u61c9\u7684\u60c5\u6cc1\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u975e\u540c\u6b65\u7248\u672c\u7684\u5de5\u5177\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import asyncio\n\n@tool\nasync def get_taiwan_weather_async(city: str) -&gt; str:\n    \"\"\"\u975e\u540c\u6b65\u67e5\u8a62\u53f0\u7063\u7279\u5b9a\u57ce\u5e02\u7684\u5929\u6c23\u72c0\u6cc1\u3002\"\"\"\n    await asyncio.sleep(1)  <em># \u6a21\u64ec API \u8abf\u7528<\/em>\n    weather_data = {\n        \"\u53f0\u5317\": \"\u6674\u5929\uff0c\u6eab\u5ea628\u00b0C\",\n        \"\u53f0\u4e2d\": \"\u591a\u96f2\uff0c\u6eab\u5ea626\u00b0C\",\n        \"\u9ad8\u96c4\": \"\u9670\u5929\uff0c\u6eab\u5ea630\u00b0C\"\n    }\n    return f\"{city}\u7684\u5929\u6c23\uff1a{weather_data.get(city, '\u66ab\u7121\u8cc7\u6599')}\"\n\nresult = await get_taiwan_weather_async.ainvoke({\"city\": \"\u9ad8\u96c4\"})\nprint(result)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/oupFlDc.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u9019\u500b\u975e\u540c\u6b65\u7248\u672c\u7684\u5de5\u5177\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528 async def \u5b9a\u7fa9\u51fd\u5f0f\uff0c\u5141\u8a31\u975e\u963b\u585e\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li>\u7121\u6cd5\u4e5f\u4e0d\u80fd\u4f7f\u7528\u540c\u6b65\u7684\u00a0<code>invoke<\/code>\u00a0\u4f86\u547c\u53eb\u00a0<code>async<\/code>\u00a0\u7570\u6b65\u5de5\u5177<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\ude80 \u6548\u80fd\u63d0\u793a\uff1a\u975e\u540c\u6b65\u5de5\u5177\u5728\u8655\u7406\u9700\u8981\u7b49\u5f85\u5916\u90e8\u8cc7\u6e90\uff08\u5982\u7db2\u8def\u8acb\u6c42\uff09\u7684\u5834\u666f\u4e2d\u7279\u5225\u6709\u7528\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6574\u9ad4\u61c9\u7528\u7684\u6548\u80fd\u3002<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">2.3.1.3 \u81ea\u8a02\u5de5\u5177\u540d\u7a31\u548c\u53c3\u6578\u7d50\u69cb\uff1a\u7cbe\u78ba\u63a7\u5236<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u6642\uff0c\u6211\u5011\u53ef\u80fd\u60f3\u8981\u66f4\u7cbe\u78ba\u5730\u63a7\u5236\u5de5\u5177\u7684\u540d\u7a31\u548c\u53c3\u6578\u7d50\u69cb\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5411 @tool \u88dd\u98fe\u5668\u50b3\u905e\u53c3\u6578\u4f86\u5be6\u73fe\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from langchain.pydantic_v1 import BaseModel, Field\n\nclass TravelPlanInput(BaseModel):\n    city: str = Field(description=\"\u6b32\u8a2a\u554f\u7684\u53f0\u7063\u57ce\u5e02\")\n    days: int = Field(description=\"\u65c5\u904a\u5929\u6578\")\n    budget: int = Field(description=\"\u9810\u7b97\uff08\u65b0\u53f0\u5e63\uff09\")\n\n@tool(\"\u53f0\u7063\u65c5\u904a\u898f\u5283\u5668\", args_schema=TravelPlanInput, return_direct=True)\ndef plan_taiwan_trip(city: str, days: int, budget: int) -&gt; str:\n    \"\"\"\u6839\u64da\u6307\u5b9a\u7684\u57ce\u5e02\u3001\u5929\u6578\u548c\u9810\u7b97\u898f\u5283\u53f0\u7063\u65c5\u904a\u884c\u7a0b\u3002\"\"\"\n    per_day_budget = budget \/\/ days\n    if city == \"\u53f0\u5317\":\n        return f\"\u53f0\u5317{days}\u5929\u884c\u7a0b\uff1a\u6bcf\u5929\u9810\u7b97{per_day_budget}\u5143\u3002\u5efa\u8b70\u666f\u9ede\uff1a101\u5927\u6a13\u3001\u6545\u5bae\u535a\u7269\u9662\u3001\u8c61\u5c71\u3002\u5225\u5fd8\u4e86\u54c1\u5690\u9f0e\u6cf0\u8c50\u7684\u5c0f\u7c60\u5305\uff01\"\n    elif city == \"\u53f0\u4e2d\":\n        return f\"\u53f0\u4e2d{days}\u5929\u884c\u7a0b\uff1a\u6bcf\u5929\u9810\u7b97{per_day_budget}\u5143\u3002\u5efa\u8b70\u666f\u9ede\uff1a\u9ad8\u7f8e\u6fd5\u5730\u3001\u5f69\u8679\u7737\u6751\u3001\u9022\u7532\u591c\u5e02\u3002\u8a18\u5f97\u5617\u8a66\u592a\u967d\u9905\uff01\"\n    elif city == \"\u9ad8\u96c4\":\n        return f\"\u9ad8\u96c4{days}\u5929\u884c\u7a0b\uff1a\u6bcf\u5929\u9810\u7b97{per_day_budget}\u5143\u3002\u5efa\u8b70\u666f\u9ede\uff1a\u84ee\u6c60\u6f6d\u3001\u99c1\u4e8c\u85dd\u8853\u7279\u5340\u3001\u65d7\u6d25\u6d77\u5cb8\u3002\u4e0d\u8981\u932f\u904e\u58fd\u5c71\u52d5\u7269\u5712\uff01\"\n    else:\n        return f\"\u62b1\u6b49\uff0c\u76ee\u524d\u6c92\u6709{city}\u7684\u65c5\u904a\u898f\u5283\u8cc7\u8a0a\u3002\"\n\nprint(plan_taiwan_trip.name)\nprint(plan_taiwan_trip.description)\nprint(plan_taiwan_trip.args)\nprint(plan_taiwan_trip.return_direct)\n\n<em># \u4f7f\u7528\u9019\u500b\u5de5\u5177<\/em>\nresult = plan_taiwan_trip.run({\"city\": \"\u53f0\u5317\", \"days\": 3, \"budget\": 10000})\nprint(result)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/WlYwb9Z.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f7f\u7528 .run() \u65b9\u6cd5\uff1a\u7576\u4f7f\u7528 @tool \u88dd\u98fe\u5668\u5275\u5efa\u5de5\u5177\u6642\uff0c\u4f7f\u7528 .run() \u65b9\u6cd5\u4f86\u57f7\u884c\u5de5\u5177\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u8abf\u7528\u51fd\u6578\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528 @tool(&#8220;\u53f0\u7063\u65c5\u904a\u898f\u5283\u5668&#8221;, &#8230;) \u4f86\u81ea\u8a02\u5de5\u5177\u540d\u7a31\u3002<\/li>\n\n\n\n<li>\u53c3\u6578\u50b3\u905e\uff1a\u5b9a\u7fa9\u4e86\u4e00\u500b TravelPlanInput \u985e\u4f86\u7cbe\u78ba\u6307\u5b9a\u5de5\u5177\u7684\u8f38\u5165\u7d50\u69cb\u3002<\/li>\n\n\n\n<li>\u8fd4\u56de\u7d50\u679c\uff1areturn_direct=True \u8868\u793a\u9019\u500b\u5de5\u5177\u7684\u8f38\u51fa\u61c9\u8a72\u76f4\u63a5\u8fd4\u56de\u7d66\u7528\u6236\uff0c\u800c\u4e0d\u9700\u8981\u9032\u4e00\u6b65\u8655\u7406\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u7a2e\u65b9\u6cd5\u5141\u8a31\u6211\u5011\u5c0d\u5de5\u5177\u7684\u7d50\u69cb\u548c\u884c\u70ba\u6709\u66f4\u7cbe\u7d30\u7684\u63a7\u5236\uff0c\u7279\u5225\u9069\u7528\u65bc\u8907\u96dc\u7684\u5de5\u5177\u6216\u9700\u8981\u7279\u5b9a\u8f38\u5165\u9a57\u8b49\u7684\u5834\u666f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.3.2 StructuredTool\uff1a\u66f4\u9748\u6d3b\u7684\u5de5\u5177\u5275\u5efa\u65b9\u5f0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>StructuredTool.from_function<\/code>&nbsp;\u985e\u65b9\u6cd5\u63d0\u4f9b\u4e86\u6bd4&nbsp;<code>@tool<\/code>&nbsp;\u88dd\u98fe\u5668\u66f4\u591a\u7684\u914d\u7f6e\u9078\u9805\uff0c\u540c\u6642\u4e0d\u9700\u8981\u592a\u591a\u984d\u5916\u7684\u7a0b\u5f0f\u78bc\u3002\u9019\u500b\u90e8\u5206\u5c07\u5c55\u793a\u5982\u4f55\u4f7f\u7528&nbsp;<code>StructuredTool.from_function<\/code>&nbsp;\u65b9\u6cd5\u4f86\u914d\u7f6e\u548c\u4f7f\u7528\u5de5\u5177\uff0c\u540c\u6642\u878d\u5165\u53f0\u7063\u7684\u591c\u5e02\u6587\u5316\u5143\u7d20\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2.3.2.1 \u57fa\u672c\u4f7f\u7528<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u9996\u5148\uff0c\u8b93\u6211\u5011\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u591c\u5e02\u5c0f\u5403\u50f9\u683c\u8a08\u7b97\u5668\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from langchain_core.tools import StructuredTool\n\ndef calculate_night_market_price(item: str, quantity: int) -&gt; str:\n    \"\"\"\u8a08\u7b97\u53f0\u7063\u591c\u5e02\u5c0f\u5403\u7684\u7e3d\u50f9\u3002\"\"\"\n    prices = {\n        \"\u86b5\u4ed4\u714e\": 60,\n        \"\u81ed\u8c46\u8150\": 40,\n        \"\u73cd\u73e0\u5976\u8336\": 50,\n        \"\u9e7d\u9165\u96de\": 70,\n        \"\u5927\u8178\u5305\u5c0f\u8178\": 55\n    }\n    if item not in prices:\n        return f\"\u62b1\u6b49\uff0c\u6211\u5011\u6c92\u6709 {item} \u7684\u50f9\u683c\u4fe1\u606f\u3002\"\n    total = prices&#91;item] * quantity\n    return f\"{quantity} \u4efd {item} \u7684\u7e3d\u50f9\u662f {total} \u5143\u65b0\u53f0\u5e63\u3002\"\n\nasync def acalculate_night_market_price(item: str, quantity: int) -&gt; str:\n    \"\"\"\u975e\u540c\u6b65\u8a08\u7b97\u53f0\u7063\u591c\u5e02\u5c0f\u5403\u7684\u7e3d\u50f9\u3002\"\"\"\n    return calculate_night_market_price(item, quantity)\n\nnight_market_calculator = StructuredTool.from_function(\n    func=calculate_night_market_price,\n    coroutine=acalculate_night_market_price\n)\n\nprint(night_market_calculator.invoke({\"item\": \"\u81ed\u8c46\u8150\", \"quantity\": 2}))\nprint(await night_market_calculator.ainvoke({\"item\": \"\u73cd\u73e0\u5976\u8336\", \"quantity\": 3}))\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/vvE07IG.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">StructuredTool \u7684\u4e00\u500b\u4e3b\u8981\u512a\u52e2\u662f\u5b83\u80fd\u5920\u540c\u6642\u652f\u63f4\u540c\u6b65\uff08sync\uff09\u548c\u975e\u540c\u6b65\uff08async\uff09\u51fd\u6578\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>func: \u6307\u5b9a\u540c\u6b65\u51fd\u6578 calculate_night_market_price<\/li>\n\n\n\n<li>coroutine: \u6307\u5b9a\u975e\u540c\u6b65\u51fd\u6578 acalculate_night_market_price<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u6a23\u914d\u7f6e\u5141\u8a31\u5de5\u5177\u6839\u64da\u8abf\u7528\u65b9\u5f0f\uff08invoke \u6216 ainvoke\uff09\u81ea\u52d5\u9078\u64c7\u9069\u7576\u7684\u51fd\u6578\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udca1 \u5c08\u696d\u63d0\u793a\uff1a\u4f7f\u7528 StructuredTool \u53ef\u4ee5\u8b93\u60a8\u7684\u5de5\u5177\u66f4\u52a0\u9748\u6d3b\uff0c\u80fd\u5920\u61c9\u5c0d\u4e0d\u540c\u7684\u57f7\u884c\u74b0\u5883\u548c\u9700\u6c42\u3002<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">2.3.2.2 \u9032\u968e\u914d\u7f6e\uff1a\u7cbe\u7d30\u5316\u5de5\u5177\u5b9a\u7fa9<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u73fe\u5728\uff0c\u8b93\u6211\u5011\u770b\u770b\u5982\u4f55\u9032\u4e00\u6b65\u914d\u7f6e&nbsp;<code>StructuredTool<\/code>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from langchain.pydantic_v1 import BaseModel, Field\n\nclass NightMarketInput(BaseModel):\n    item: str = Field(description=\"\u591c\u5e02\u5c0f\u5403\u540d\u7a31\uff0c\u4f8b\u5982\uff1a\u86b5\u4ed4\u714e\u3001\u81ed\u8c46\u8150\u3001\u73cd\u73e0\u5976\u8336\u7b49\")\n    quantity: int = Field(description=\"\u8cfc\u8cb7\u6578\u91cf\")\n\ndef calculate_night_market_price(item: str, quantity: int) -&gt; str:\n    \"\"\"\u8a08\u7b97\u53f0\u7063\u591c\u5e02\u5c0f\u5403\u7684\u7e3d\u50f9\u3002\"\"\"\n    prices = {\n        \"\u86b5\u4ed4\u714e\": 60,\n        \"\u81ed\u8c46\u8150\": 40,\n        \"\u73cd\u73e0\u5976\u8336\": 50,\n        \"\u9e7d\u9165\u96de\": 70,\n        \"\u5927\u8178\u5305\u5c0f\u8178\": 55\n    }\n    if item not in prices:\n        return f\"\u62b1\u6b49\uff0c\u6211\u5011\u6c92\u6709 {item} \u7684\u50f9\u683c\u4fe1\u606f\u3002\"\n    total = prices&#91;item] * quantity\n    return f\"{quantity} \u4efd {item} \u7684\u7e3d\u50f9\u662f {total} \u5143\u65b0\u53f0\u5e63\u3002\"\n\nnight_market_calculator = StructuredTool.from_function(\n    func=calculate_night_market_price,\n    name=\"\u53f0\u7063\u591c\u5e02\u5c0f\u5403\u8a08\u50f9\u5668\",\n    description=\"\u8a08\u7b97\u53f0\u7063\u591c\u5e02\u5e38\u898b\u5c0f\u5403\u7684\u7e3d\u50f9\",\n    args_schema=NightMarketInput,\n    return_direct=True\n)\n\nprint(night_market_calculator.invoke({\"item\": \"\u86b5\u4ed4\u714e\", \"quantity\": 2}))\nprint(night_market_calculator.name)\nprint(night_market_calculator.description)\nprint(night_market_calculator.args)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/k45L0J8.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u9032\u968e\u914d\u7f6e\u4e2d\uff0c\u53ef\u4ee5\u6e05\u695a\u770b\u5230\u4ee5\u4e0b\u7279\u6027\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u7fa9\u8f38\u5165\u6a21\u578b\uff1a\n<ul class=\"wp-block-list\">\n<li>NightMarketInput \u4f7f\u7528 BaseModel \u548c Field \u5b9a\u7fa9\u4e86\u8f38\u5165\u53c3\u6578\u7684\u7d50\u69cb\u548c\u63cf\u8ff0\u3002<\/li>\n\n\n\n<li>\u9019\u6709\u52a9\u65bc\u78ba\u4fdd\u8f38\u5165\u7684\u6b63\u78ba\u6027\uff0c\u4e26\u70ba\u4f7f\u7528\u8005\u63d0\u4f9b\u6e05\u6670\u7684\u6307\u5f15\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u81ea\u5b9a\u7fa9\u5de5\u5177\u540d\u7a31\u548c\u63cf\u8ff0\uff1a\n<ul class=\"wp-block-list\">\n<li>\u901a\u904e name \u548c description \u53c3\u6578\uff0c\u6211\u5011\u53ef\u4ee5\u70ba\u5de5\u5177\u63d0\u4f9b\u66f4\u5177\u63cf\u8ff0\u6027\u7684\u6a19\u8b58\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u6307\u5b9a\u53c3\u6578\u7d50\u69cb\uff1a\n<ul class=\"wp-block-list\">\n<li>args_schema \u53c3\u6578\u5141\u8a31\u6211\u5011\u4f7f\u7528\u9810\u5148\u5b9a\u7fa9\u7684 Pydantic \u6a21\u578b\u4f86\u898f\u7bc4\u8f38\u5165\u683c\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u76f4\u63a5\u8fd4\u56de\u7d50\u679c\uff1a\n<ul class=\"wp-block-list\">\n<li>return_direct=True \u8868\u793a\u9019\u500b\u5de5\u5177\u7684\u8f38\u51fa\u61c9\u8a72\u76f4\u63a5\u8fd4\u56de\u7d66\u7528\u6236\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">2.3.2.3 StructuredTool \u7684\u4f7f\u7528\u5834\u666f\u8207\u512a\u52e2<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7d50\u69cb\u5316\u8f38\u5165\uff1a\u901a\u904e\u5b9a\u7fa9\u660e\u78ba\u7684\u8f38\u5165\u6a21\u578b\uff0c\u53ef\u4ee5\u78ba\u4fdd\u50b3\u5165\u7684\u53c3\u6578\u7b26\u5408\u9810\u671f\u683c\u5f0f\u3002<\/li>\n\n\n\n<li>\u5f48\u6027\u914d\u7f6e\uff1a\u76f8\u6bd4 @tool \u88dd\u98fe\u5668\uff0c\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u914d\u7f6e\u9078\u9805\u3002<\/li>\n\n\n\n<li>\u540c\u6b65\u8207\u975e\u540c\u6b65\u652f\u63f4\uff1a\u53ef\u4ee5\u540c\u6642\u5b9a\u7fa9\u540c\u6b65\u548c\u975e\u540c\u6b65\u7248\u672c\u7684\u51fd\u6578\u3002<\/li>\n\n\n\n<li>\u6613\u65bc\u6574\u5408\uff1a\u53ef\u4ee5\u8f15\u9b06\u5730\u8207 LangChain \u7684\u5176\u4ed6\u7d44\u4ef6\uff08\u5982 Agents\uff09\u6574\u5408\u3002<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83c\udf1f \u4eae\u9ede\uff1aStructuredTool \u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u9748\u6d3b\u6027\uff0c\u7279\u5225\u9069\u5408\u9700\u8981\u7cbe\u78ba\u63a7\u5236\u8f38\u5165\u8f38\u51fa\u7d50\u69cb\u7684\u8907\u96dc\u61c9\u7528\u5834\u666f\u3002<\/p>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\">3. \u5de5\u5177\u932f\u8aa4\u8655\u7406\uff1a\u6253\u9020\u7a69\u5065\u7684 AI \u61c9\u7528<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4f7f\u7528 LangChain \u7684\u5de5\u5177\uff08Tools\uff09\u6642\uff0c\u5efa\u7acb\u4e00\u500b\u932f\u8aa4\u8655\u7406\u7b56\u7565\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u7279\u5225\u662f\u7576\u9019\u4e9b\u5de5\u5177\u8207\u4ee3\u7406\uff08Agents\uff09\u4e00\u8d77\u4f7f\u7528\u6642\u3002\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\u53ef\u4ee5\u8b93\u4ee3\u7406\u5f9e\u932f\u8aa4\u4e2d\u6062\u5fa9\u4e26\u7e7c\u7e8c\u57f7\u884c\u3002\u8b93\u6211\u5011\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728 LangChain \u4e2d\u5be6\u73fe\u5de5\u5177\u7684\u932f\u8aa4\u8655\u7406\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.1 \u57fa\u672c\u7b56\u7565\uff1aToolException \u548c handle_tool_error<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u500b\u7c21\u55ae\u7684\u932f\u8aa4\u8655\u7406\u7b56\u7565\u662f\u5728\u5de5\u5177\u5167\u90e8\u62cb\u51fa&nbsp;<code>ToolException<\/code>\uff0c\u4e26\u4f7f\u7528&nbsp;<code>handle_tool_error<\/code>&nbsp;\u4f86\u6307\u5b9a\u932f\u8aa4\u8655\u7406\u65b9\u5f0f\u3002\u7576\u6307\u5b9a\u4e86\u932f\u8aa4\u8655\u7406\u5668\u6642\uff0c\u7570\u5e38\u6703\u88ab\u6355\u7372\uff0c\u932f\u8aa4\u8655\u7406\u5668\u5c07\u6c7a\u5b9a\u5f9e\u5de5\u5177\u8fd4\u56de\u4ec0\u9ebc\u8f38\u51fa\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.2 \u8a2d\u7f6e\u932f\u8aa4\u8655\u7406\uff1a\u4e09\u7a2e\u65b9\u5f0f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u60a8\u53ef\u4ee5\u5c07&nbsp;<code>handle_tool_error<\/code>&nbsp;\u8a2d\u7f6e\u70ba\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>True\uff1a\u4f7f\u7528\u9810\u8a2d\u7684\u932f\u8aa4\u8655\u7406\u884c\u70ba<\/li>\n\n\n\n<li>\u5b57\u4e32\uff1a\u59cb\u7d42\u8fd4\u56de\u6307\u5b9a\u7684\u5b57\u4e32<\/li>\n\n\n\n<li>\u51fd\u6578\uff1a\u81ea\u5b9a\u7fa9\u932f\u8aa4\u8655\u7406\u908f\u8f2f<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u26a0\ufe0f \u91cd\u8981\u63d0\u793a\uff1a\u50c5\u50c5\u62cb\u51fa&nbsp;<code>ToolException<\/code>&nbsp;\u662f\u4e0d\u5920\u7684\u3002\u60a8\u9700\u8981\u5148\u8a2d\u7f6e\u5de5\u5177\u7684 handle_tool_error\uff0c\u56e0\u70ba\u5176\u9810\u8a2d\u503c\u70ba False\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">3.3 \u4f7f\u7528\u7bc4\u4f8b\uff1a\u5929\u6c23\u67e5\u8a62\u5de5\u5177<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8b93\u6211\u5011\u901a\u904e\u4e00\u500b\u67e5\u8a62\u5929\u6c23\u7684\u4f8b\u5b50\u4f86\u8aaa\u660e\u9019\u4e9b\u932f\u8aa4\u8655\u7406\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def get_weather(city: str) -&gt; int:\n    \"\"\"\u67e5\u8a62\u6307\u5b9a\u57ce\u5e02\u7684\u5929\u6c23\u3002\"\"\"\n    raise ToolException(f\"\u932f\u8aa4\uff1a\u627e\u4e0d\u5230\u540d\u70ba {city} \u7684\u57ce\u5e02\u3002\")\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3.3.1 \u7bc4\u4f8b 1\uff1a\u9810\u8a2d\u932f\u8aa4\u8655\u7406\u884c\u70ba<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>from langchain_core.tools import ToolException\nfrom langchain.tools import StructuredTool\n\n<em># \u7bc4\u4f8b 1\uff1a\u9810\u8a2d\u932f\u8aa4\u8655\u7406\u884c\u70ba<\/em>\nget_weather_tool = StructuredTool.from_function(\n    func=get_weather,\n    handle_tool_error=True,\n)\n\nresult = get_weather_tool.invoke({\"city\": \"\u672a\u77e5\u57ce\u5e02\"})\nprint(\"\u9810\u8a2d\u932f\u8aa4\u8655\u7406\uff1a\", result)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/sCeV2Ev.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u9810\u8a2d\u932f\u8aa4\u8655\u7406\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a2d\u7f6e handle_tool_error=True \u6703\u76f4\u63a5\u8fd4\u56de\u932f\u8aa4\u8a0a\u606f\u3002<\/li>\n\n\n\n<li>\u9069\u7528\u65bc\u7c21\u55ae\u7684\u932f\u8aa4\u63d0\u793a\u5834\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.3.2 \u7bc4\u4f8b 2\uff1a\u4f7f\u7528\u81ea\u5b9a\u7fa9\u5b57\u4e32<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code><em># \u7bc4\u4f8b 2\uff1a\u4f7f\u7528\u81ea\u5b9a\u7fa9\u5b57\u4e32<\/em>\nget_weather_tool = StructuredTool.from_function(\n    func=get_weather,\n    handle_tool_error=\"\u62b1\u6b49\uff0c\u627e\u4e0d\u5230\u8a72\u57ce\u5e02\uff0c\u4f46\u90a3\u88e1\u7684\u6eab\u5ea6\u61c9\u8a72\u9ad8\u65bc\u7d55\u5c0d\u96f6\u5ea6\uff01\",\n)\n\nresult = get_weather_tool.invoke({\"city\": \"\u672a\u77e5\u57ce\u5e02\"})\nprint(\"\u81ea\u5b9a\u7fa9\u5b57\u4e32\u932f\u8aa4\u8655\u7406\uff1a\", result)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/fSjMI8o.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u5b9a\u7fa9\u5b57\u4e32\u932f\u8aa4\u8655\u7406\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a2d\u7f6e\u00a0<code>handle_tool_error<\/code>\u00a0\u70ba\u4e00\u500b\u5b57\u4e32\uff0c\u6703\u5728\u767c\u751f\u932f\u8aa4\u6642\u59cb\u7d42\u8fd4\u56de\u8a72\u5b57\u4e32\u3002<\/li>\n\n\n\n<li>\u9069\u7528\u65bc\u60f3\u8981\u63d0\u4f9b\u56fa\u5b9a\u3001\u53cb\u5584\u932f\u8aa4\u8a0a\u606f\u7684\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.3.3 \u7bc4\u4f8b 3\uff1a\u4f7f\u7528\u81ea\u5b9a\u7fa9\u51fd\u6578<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code><em># \u7bc4\u4f8b 3\uff1a\u4f7f\u7528\u81ea\u5b9a\u7fa9\u51fd\u6578<\/em>\ndef custom_error_handler(error: ToolException) -&gt; str:\n    return f\"\u5de5\u5177\u57f7\u884c\u671f\u9593\u767c\u751f\u4ee5\u4e0b\u932f\u8aa4\uff1a`{error.args&#91;0]}`\"\n\nget_weather_tool = StructuredTool.from_function(\n    func=get_weather,\n    handle_tool_error=custom_error_handler,\n)\n\nresult = get_weather_tool.invoke({\"city\": \"\u672a\u77e5\u57ce\u5e02\"})\nprint(\"\u81ea\u5b9a\u7fa9\u51fd\u6578\u932f\u8aa4\u8655\u7406\uff1a\", result)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/WryWe6N.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u5b9a\u7fa9\u51fd\u6578\u932f\u8aa4\u8655\u7406\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u7fa9\u4e00\u500b\u63a5\u53d7 ToolException \u4f5c\u70ba\u53c3\u6578\u4e26\u8fd4\u56de\u5b57\u4e32\u7684\u51fd\u6578\u3002<\/li>\n\n\n\n<li>\u6700\u9748\u6d3b\u7684\u65b9\u6cd5\uff0c\u5141\u8a31\u6839\u64da\u932f\u8aa4\u7684\u5177\u9ad4\u60c5\u6cc1\u9032\u884c\u4e0d\u540c\u7684\u8655\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udee0\ufe0f \u6700\u4f73\u5be6\u8e10\uff1a\u6839\u64da\u60a8\u7684\u61c9\u7528\u9700\u6c42\u9078\u64c7\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\u65b9\u6cd5\u3002\u5c0d\u65bc\u7c21\u55ae\u60c5\u6cc1\uff0c\u4f7f\u7528\u9810\u8a2d\u6216\u81ea\u5b9a\u7fa9\u5b57\u4e32\u53ef\u80fd\u5c31\u8db3\u5920\u4e86\u3002\u5c0d\u65bc\u9700\u8981\u66f4\u8907\u96dc\u908f\u8f2f\u7684\u60c5\u6cc1\uff0c\u81ea\u5b9a\u7fa9\u51fd\u6578\u63d0\u4f9b\u4e86\u6700\u5927\u7684\u9748\u6d3b\u6027\u3002<\/p>\n<\/blockquote>\n\n\n\n<h1 class=\"wp-block-heading\">4.\u521d\u63a2 LangGraph \u5982\u4f55\u5584\u7528 ToolNode<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u524d\u9762\u7684\u7ae0\u7bc0\u4e2d\uff0c\u6211\u5011\u6df1\u5165\u63a2\u8a0e\u4e86 LangChain \u4e2d\u5de5\u5177\uff08Tool\uff09\u7684\u5404\u500b\u65b9\u9762\uff0c\u5305\u62ec\u5275\u5efa\u65b9\u6cd5\u548c\u7570\u5e38\u8655\u7406\u7b49\u3002\u73fe\u5728\uff0c\u8b93\u6211\u5011\u5c07\u7126\u9ede\u8f49\u5411 LangGraph\uff0c\u770b\u770b\u5982\u4f55\u5728\u9019\u500b\u5f37\u5927\u7684\u6846\u67b6\u4e2d\u904b\u7528\u9019\u4e9b\u77e5\u8b58\u3002\u672c\u6587\u5c07\u901a\u904e\u4e00\u500b\u7c21\u55ae\u800c\u5be6\u7528\u7684\u4f8b\u5b50\uff0c\u9010\u6b65\u5c55\u793a LangGraph \u7684\u64cd\u4f5c\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4.1 \u6574\u5408\u641c\u7d22\u5de5\u5177<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u70ba\u4e86\u589e\u5f37\u804a\u5929\u6a5f\u5668\u4eba\u7684\u80fd\u529b\uff0c\u6211\u5011\u5c07\u6574\u5408\u4e00\u500b\u7db2\u7d61\u641c\u7d22\u5de5\u5177\u3002\u9019\u4f7f\u5f97\u6a5f\u5668\u4eba\u80fd\u5920\u67e5\u627e\u76f8\u95dc\u4fe1\u606f\uff0c\u63d0\u4f9b\u66f4\u6e96\u78ba\u7684\u56de\u7b54\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from langchain_community.tools.tavily_search import TavilySearchResults\nfrom langgraph.prebuilt import ToolNode, tools_condition\n\ntool = TavilySearchResults(max_results=2)\ntools = &#91;tool]\n\ntool_node = ToolNode(tools=&#91;tool])\ntool.invoke(\"\u9ad8\u96c4\u5fc5\u6bd4\u767b\u63a8\u85a6\u9910\u5ef3\uff1f\")\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/cCpvK95.png?w=640&#038;ssl=1\" alt=\"\u653e\u4e0a\u57f7\u884c\u7d50\u679c\"\/><\/figure>\n<\/div>\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">ToolNode \u5c01\u88dd\u4e86\u6211\u5011\u5b9a\u7fa9\u7684\u5de5\u5177\uff08\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\u662f\u7db2\u8def\u641c\u5c0b\u5de5\u5177\uff09\u3002\u5b83\u5141\u8a31\u804a\u5929\u6a5f\u5668\u4eba\u5728\u9700\u8981\u6642\u8abf\u7528\u5916\u90e8\u8cc7\u6e90\u4f86\u589e\u5f37\u5176\u56de\u61c9\u80fd\u529b<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">4.2 \u6dfb\u52a0\u81f3 Graph \u7576\u4e2d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c07\u6240\u6709\u7d44\u4ef6\u7d44\u5408\u6210\u4e00\u500b\u5b8c\u6574\u7684\u5716\u5f62\u7d50\u69cb\u3002\u9019\u5b9a\u7fa9\u4e86\u804a\u5929\u6a5f\u5668\u4eba\u7684\u5de5\u4f5c\u6d41\u7a0b\u3002<br>\u76f4\u63a5\u628a\u525b\u525b\u5efa\u7acb\u7684&nbsp;<code>tool_node<\/code>&nbsp;\u653e\u76e1 Graph \u7576\u4e2d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>graph_builder = StateGraph(State)\ngraph_builder.add_node(\"chatbot\", chatbot)\ngraph_builder.add_node(\"tools\", tool_node)\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6642\u4e5f\u6dfb\u52a0\u689d\u4ef6\u908a\uff0c\u8b93 chatbot \u7bc0\u9ede\u8f38\u51fa\u7d50\u679c\u4e2d\u5e36\u6709&nbsp;<code>tool_calls<\/code>&nbsp;\u524d\u5f80\u6307\u5b9a\u7bc0\u9ede<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>graph_builder.add_conditional_edges(\n    \"chatbot\",\n    tools_condition,\n)\n<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/xZbWbPx.png?w=640&#038;ssl=1\" alt=\"img\"\/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">4.3 \u8207\u804a\u5929\u6a5f\u5668\u4eba\u4e92\u52d5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\uff0c\u6211\u5011\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u4ea4\u4e92\u754c\u9762\uff0c\u5141\u8a31\u7528\u6236\u8207\u804a\u5929\u6a5f\u5668\u4eba\u5c0d\u8a71\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>while True:\n    user_input = input(\"User: \")\n    if user_input.lower() in &#91;\"quit\", \"exit\", \"q\"]:\n        print(\"Goodbye!\")\n        break\n    for event in graph.stream({\"messages\": (\"user\", user_input)}):\n        for value in event.values():\n            <em># print(\"Assistant:\", value&#91;\"messages\"]&#91;-1].content)<\/em>\n            value&#91;\"messages\"]&#91;-1].pretty_print()\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u500b\u5faa\u74b0\u5141\u8a31\u7528\u6236\u8f38\u5165\u6d88\u606f\uff0c\u804a\u5929\u6a5f\u5668\u4eba\u6703\u8655\u7406\u9019\u4e9b\u8f38\u5165\u4e26\u7d66\u51fa\u56de\u61c9\u3002\u7528\u6236\u53ef\u4ee5\u96a8\u6642\u8f38\u5165 &#8220;quit&#8221;\u3001&#8221;exit&#8221; \u6216 &#8220;q&#8221; \u4f86\u7d50\u675f\u5c0d\u8a71\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.imgur.com\/XyCVbBF.png?w=640&#038;ssl=1\" alt=\"\u4e0a\u4e92\u52d5\u7d50\u679c\u5716\"\/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">5. \u7d50\u8a9e<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u904e\u672c\u6587\u7684\u63a2\u8a0e\uff0c\u6211\u5011\u6df1\u5165\u4e86\u89e3\u4e86 LangChain \u548c LangGraph \u4e2d Tools \u7684\u91cd\u8981\u6027\u548c\u5be6\u73fe\u65b9\u6cd5\u3002\u5f9e\u57fa\u672c\u7684 @tool \u88dd\u98fe\u5668\u5230\u66f4\u70ba\u9748\u6d3b\u7684 StructuredTool\uff0c\u518d\u5230\u932f\u8aa4\u8655\u7406\u7b56\u7565\uff0c\u9019\u4e9b\u77e5\u8b58\u5c07\u5e6b\u52a9\u60a8\u69cb\u5efa\u66f4\u52a0\u5f37\u5927\u548c\u53ef\u9760\u7684 AI \u61c9\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a18\u4f4f\uff0c\u9078\u64c7\u5408\u9069\u7684\u5de5\u5177\u5275\u5efa\u65b9\u6cd5\u548c\u932f\u8aa4\u8655\u7406\u7b56\u7565\uff0c\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u60a8\u7684 AI \u6a21\u578b\u7684\u529f\u80fd\u6027\uff0c\u9084\u80fd\u5927\u5927\u63d0\u5347\u5176\u7a69\u5b9a\u6027\u548c\u7528\u6236\u9ad4\u9a57\u3002\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9748\u6d3b\u904b\u7528\u9019\u4e9b\u6280\u8853\uff0c\u5c07\u4f7f\u60a8\u7684 AI \u89e3\u6c7a\u65b9\u6848\u66f4\u52a0\u51fa\u8272\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\uff0c\u96a8\u8457 AI \u6280\u8853\u7684\u4e0d\u65b7\u767c\u5c55\uff0c\u4fdd\u6301\u5b78\u7fd2\u548c\u5be6\u8e10\u7684\u614b\u5ea6\u81f3\u95dc\u91cd\u8981\u3002\u5e0c\u671b\u672c\u6587\u80fd\u70ba\u60a8\u7684 AI \u958b\u767c\u4e4b\u65c5\u63d0\u4f9b\u6709\u50f9\u503c\u7684\u898b\u89e3\u548c\u6307\u5c0e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8cc7\u6599\u4f86\u6e90: <a href=\"https:\/\/ithelp.ithome.com.tw\/m\/articles\/10347269\">https:\/\/ithelp.ithome.com.tw\/m\/articles\/10347269<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>2024-08 |hengshiousheu \u6458\u8981\u9019\u7bc7\u6587\u7ae0\u63a2\u8a0e\u4e86 LangChain \u548c LangGraph \u9019\u5169\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u5b83\u5011\u80fd\u5920\u8ce6\u4e88 AI \u6a21\u578b\u547c\u53eb\u5916\u90e8\u7a0b\u5f0f\u78bc\u7684\u80fd\u529b\uff0c\u9032\u800c\u64f4&hellip;<\/p>\n","protected":false},"author":4,"featured_media":7378,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[579,4],"tags":[40],"class_list":["post-7377","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-579","category-industry-news","tag-40"],"gutentor_comment":0,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/aict.nkust.edu.tw\/digitrans\/wp-content\/uploads\/2024\/10\/%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2-2024-10-31-154648.png?fit=1620%2C868&ssl=1","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=\/wp\/v2\/posts\/7377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7377"}],"version-history":[{"count":1,"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=\/wp\/v2\/posts\/7377\/revisions"}],"predecessor-version":[{"id":7379,"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=\/wp\/v2\/posts\/7377\/revisions\/7379"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=\/wp\/v2\/media\/7378"}],"wp:attachment":[{"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aict.nkust.edu.tw\/digitrans\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}