{"id":64562,"date":"2026-01-23T19:24:22","date_gmt":"2026-01-23T11:24:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/64562.html"},"modified":"2026-01-23T19:24:22","modified_gmt":"2026-01-23T11:24:22","slug":"%e5%9f%ba%e4%ba%8elanggraph%e7%9a%84%e8%87%aa%e5%8a%a8%e5%8c%96%e6%95%b0%e6%8d%ae%e5%88%86%e6%9e%90agent","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/64562.html","title":{"rendered":"\u57fa\u4e8elanggraph\u7684\u81ea\u52a8\u5316\u6570\u636e\u5206\u6790agent"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u9879\u76ee\u4ecb\u7ecd<\/li>\n<li>\u5b8c\u6574\u4ee3\u7801<\/li>\n<li>\n<ul>\n<li>data_analysty.py<\/li>\n<\/ul>\n<\/li>\n<li>\u4ee3\u7801\u89e3\u91ca<\/li>\n<li>\n<ul>\n<li>\u5bfc\u5165\u6a21\u5757<\/li>\n<li>\u5b9a\u4e49\u72b6\u6001\u6570\u636e\u7ed3\u6784<\/li>\n<li>\u521d\u59cb\u5316LLM<\/li>\n<li>\u6587\u4ef6\u8bfb\u53d6\u8282\u70b9<\/li>\n<li>\u52a8\u6001\u56fe\u8868\u751f\u6210\u8282\u70b9<\/li>\n<li>\u62a5\u544a\u6525\u5199\u8282\u70b9<\/li>\n<li>\u5de5\u4f5c\u6d41\u6784\u5efa<\/li>\n<li>\u4e3b\u7a0b\u5e8f\u5165\u53e3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p> \u7279\u522b\u63d0\u9192&#xff1a;\u552f\u4e00\u9700\u8981\u6539\u52a8\u7684\u5730\u65b9\u4e3a\u4ee3\u7801\u4e2d\u7684api_key&#xff0c;\u53ef\u524d\u5f80deepseek\u5f00\u653e\u5e73\u53f0\u83b7\u53d6\u2014\u2014<br \/>\n\u70b9\u51fb\u524d\u5f80 <\/p>\n<h2>\u9879\u76ee\u4ecb\u7ecd<\/h2>\n<p>\u8fd9\u662f\u4e00\u4e2a\u57fa\u4e8eLangGraph\u6846\u67b6\u6784\u5efa\u7684\u667a\u80fd\u6570\u636e\u5206\u6790\u4e0e\u53ef\u89c6\u5316\u7cfb\u7edf&#xff0c;\u5b83\u901a\u8fc7\u591a\u8282\u70b9\u81ea\u52a8\u5316\u5de5\u4f5c\u6d41\u5b9e\u73b0\u4ece\u539f\u59cb\u6570\u636e\u5230\u6d1e\u5bdf\u62a5\u544a\u7684\u5168\u6d41\u7a0b\u667a\u80fd\u5904\u7406&#xff0c;\u5c06\u4f20\u7edf\u6570\u636e\u5206\u6790\u8f6c\u5316\u4e3a\u52a8\u6001\u3001\u81ea\u9002\u5e94\u7684AI\u9a71\u52a8\u6d41\u7a0b\u3002<\/p>\n<p>\u8be5\u7cfb\u7edf\u91c7\u7528\u6709\u5411\u56fe\u7ed3\u6784\u7f16\u6392\u6570\u636e\u5206\u6790\u6d41\u7a0b&#xff0c;\u4f9d\u6b21\u6267\u884c\u6570\u636e\u8bfb\u53d6\u4e0e\u5143\u5206\u6790\u3001\u52a8\u6001\u56fe\u8868\u751f\u6210\u3001\u62a5\u544a\u64b0\u5199\u4e09\u4e2a\u6838\u5fc3\u8282\u70b9\u3002\u5176\u521b\u65b0\u6027\u5728\u4e8e\u52a8\u6001\u4ee3\u7801\u751f\u6210\u80fd\u529b\u2014\u2014\u7cfb\u7edf\u80fd\u6839\u636e\u6570\u636e\u7279\u5f81\u81ea\u52a8\u751f\u6210\u5e76\u6267\u884c\u53ef\u89c6\u5316\u4ee3\u7801&#xff0c;\u7a81\u7834\u56fa\u5b9a\u6a21\u677f\u9650\u5236&#xff0c;\u5b9e\u73b0\u771f\u6b63\u610f\u4e49\u4e0a\u7684\u81ea\u9002\u5e94\u5206\u6790\u3002\u6700\u7ec8\u751f\u6210\u5305\u542b\u56fe\u8868\u5d4c\u5165\u7684\u4e13\u4e1a\u5206\u6790\u62a5\u544a&#xff0c;\u5f62\u6210\u8986\u76d6\u6570\u636e\u6982\u89c8\u3001\u6d1e\u5bdf\u6316\u6398\u5230\u7ed3\u8bba\u5efa\u8bae\u7684\u5b8c\u6574\u5206\u6790\u95ed\u73af\u3002<\/p>\n<p>\u8be5\u9879\u76ee\u4f53\u73b0\u4e86\u667a\u80fd\u4f53(Agent)\u6280\u672f\u5728\u6570\u636e\u5206\u6790\u9886\u57df\u7684\u5148\u8fdb\u5b9e\u8df5&#xff0c;\u901a\u8fc7LangGraph\u7684\u6d41\u7a0b\u63a7\u5236\u80fd\u529b&#xff0c;\u663e\u8457\u63d0\u5347\u4e86\u6570\u636e\u63a2\u7d22\u7684\u81ea\u52a8\u5316\u6c34\u5e73\u548c\u6d1e\u5bdf\u6548\u7387\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260123112420-69735a646184b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u5b8c\u6574\u4ee3\u7801<\/h2>\n<h3>data_analysty.py<\/h3>\n<p><span class=\"token keyword\">import<\/span> os<br \/>\n<span class=\"token keyword\">import<\/span> pandas <span class=\"token keyword\">as<\/span> pd<br \/>\n<span class=\"token keyword\">import<\/span> re<br \/>\n<span class=\"token keyword\">from<\/span> typing <span class=\"token keyword\">import<\/span> TypedDict<span class=\"token punctuation\">,<\/span> List<span class=\"token punctuation\">,<\/span> Optional<br \/>\n<span class=\"token keyword\">from<\/span> langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> END<br \/>\n<span class=\"token keyword\">from<\/span> langchain_core<span class=\"token punctuation\">.<\/span>messages <span class=\"token keyword\">import<\/span> HumanMessage<span class=\"token punctuation\">,<\/span> SystemMessage<br \/>\n<span class=\"token keyword\">from<\/span> langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model<br \/>\n<span class=\"token keyword\">import<\/span> matplotlib<span class=\"token punctuation\">.<\/span>pyplot <span class=\"token keyword\">as<\/span> plt<\/p>\n<p><span class=\"token comment\"># \u5b9a\u4e49\u72b6\u6001<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AgentState<\/span><span class=\"token punctuation\">(<\/span>TypedDict<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    file_path<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    data_summary<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    column_info<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    chart_paths<span class=\"token punctuation\">:<\/span> List<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    generated_code<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    report<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    error<span class=\"token punctuation\">:<\/span> Optional<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p><span class=\"token comment\"># \u521d\u59cb\u5316 LLM<\/span><br \/>\nos<span class=\"token punctuation\">.<\/span>environ<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;DEEPSEEK_API_KEY&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u6362\u4e3a\u81ea\u5df1\u7684api_key&#034;<\/span><\/p>\n<p>llm <span class=\"token operator\">&#061;<\/span> init_chat_model<span class=\"token punctuation\">(<\/span>model<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#039;deepseek-chat&#039;<\/span><span class=\"token punctuation\">,<\/span> model_provider<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;deepseek&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># 1. \u9605\u8bfb\u6587\u4ef6\u5185\u5bb9\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">read_file_node<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">:<\/span> AgentState<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\">&#034;&#8212; \u8282\u70b9 1: \u6b63\u5728\u8bfb\u53d6\u6587\u4ef6\u5e76\u63d0\u53d6\u5143\u6570\u636e &#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    file_path <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;file_path&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        df <span class=\"token operator\">&#061;<\/span> pd<span class=\"token punctuation\">.<\/span>read_csv<span class=\"token punctuation\">(<\/span>file_path<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u63d0\u53d6\u5217\u4fe1\u606f\u548c\u6570\u636e\u7c7b\u578b<\/span><br \/>\n        col_info <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> col <span class=\"token keyword\">in<\/span> df<span class=\"token punctuation\">.<\/span>columns<span class=\"token punctuation\">:<\/span><br \/>\n            col_info<span class=\"token punctuation\">.<\/span>append<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>col<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">[<\/span>col<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>dtype<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> (\u552f\u4e00\u503c\u6570\u91cf: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">[<\/span>col<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>nunique<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">)&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        summary <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6570\u636e\u96c6\u5305\u542b <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>df<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u884c\u548c <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>df<span class=\"token punctuation\">.<\/span>columns<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u5217\u3002\\\\n&#034;<\/span><\/span><br \/>\n        summary <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6570\u636e\u9884\u89c8:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">.<\/span>head<span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>to_string<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\\\\n&#034;<\/span><\/span><br \/>\n        summary <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u7edf\u8ba1\u6458\u8981:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">.<\/span>describe<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>to_string<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#034;data_summary&#034;<\/span><span class=\"token punctuation\">:<\/span> summary<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#034;column_info&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>col_info<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u8bfb\u53d6\u6587\u4ef6\u5931\u8d25: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\"># 2. \u52a8\u6001\u751f\u6210\u7ed8\u56fe\u4ee3\u7801\u5e76\u6267\u884c\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">dynamic_chart_node<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">:<\/span> AgentState<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\">&#034;&#8212; \u8282\u70b9 2: \u6b63\u5728\u52a8\u6001\u751f\u6210\u5e76\u6267\u884c\u7ed8\u56fe\u4ee3\u7801 &#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> state<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;error&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> state<\/p>\n<p>    summary <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;data_summary&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    col_info <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;column_info&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    file_path <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;file_path&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>    prompt <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;&#034;&#034;<br \/>\n    \u4f60\u662f\u4e00\u4e2a\u9ad8\u7ea7\u6570\u636e\u53ef\u89c6\u5316\u4e13\u5bb6\u3002\u8bf7\u6839\u636e\u4ee5\u4e0b\u6570\u636e\u4fe1\u606f&#xff0c;\u7f16\u5199\u4e00\u6bb5 Python \u4ee3\u7801\u6765\u751f\u6210 1-2 \u5f20\u6700\u80fd\u53cd\u6620\u6570\u636e\u7279\u5f81\u7684\u56fe\u8868\u3002<\/p>\n<p>    \u6587\u4ef6\u8def\u5f84: &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>file_path<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039; (\u8bf7\u76f4\u63a5\u4f7f\u7528 pd.read_csv(&#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>file_path<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;) \u8bfb\u53d6)<br \/>\n    \u6570\u636e\u6458\u8981:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>summary<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u5217\u8be6\u7ec6\u4fe1\u606f:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>col_info<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u4ee3\u7801\u8981\u6c42:<br \/>\n    1. \u4f7f\u7528 matplotlib \u6216 seaborn \u7ed8\u56fe\u3002<br \/>\n    2. \u5fc5\u987b\u5c06\u56fe\u8868\u4fdd\u5b58\u4e3a\u6587\u4ef6&#xff0c;\u6587\u4ef6\u540d\u8bf7\u4f7f\u7528 &#039;dynamic_chart_1.png&#039; (\u5982\u679c\u6709\u7b2c\u4e8c\u5f20&#xff0c;\u4f7f\u7528 &#039;dynamic_chart_2.png&#039;)\u3002<br \/>\n    3. \u4ee3\u7801\u4e2d\u4e0d\u8981\u5305\u542b plt.show()&#xff0c;\u53ea\u9700\u4fdd\u5b58\u3002<br \/>\n    4. \u786e\u4fdd\u4ee3\u7801\u5065\u58ee&#xff0c;\u5904\u7406\u53ef\u80fd\u7684\u7f3a\u5931\u503c\u3002<br \/>\n    5. \u53ea\u8f93\u51fa\u7eaf Python \u4ee3\u7801&#xff0c;\u4e0d\u8981\u5305\u542b Markdown \u4ee3\u7801\u5757\u6807\u8bb0\u3002<br \/>\n    &#034;&#034;&#034;<\/span><\/span><\/p>\n<p>    messages <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><br \/>\n        SystemMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u4f60\u662f\u4e00\u4e2a\u53ea\u8f93\u51fa Python \u4ee3\u7801\u7684\u4e13\u5bb6\u3002\u4e0d\u8981\u89e3\u91ca&#xff0c;\u4e0d\u8981\u4f7f\u7528 Markdown \u683c\u5f0f\u3002&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        HumanMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span>prompt<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">]<\/span><\/p>\n<p>    response <span class=\"token operator\">&#061;<\/span> llm<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span>messages<span class=\"token punctuation\">)<\/span><br \/>\n    code <span class=\"token operator\">&#061;<\/span> response<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">.<\/span>strip<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\"># \u6e05\u7406\u53ef\u80fd\u5b58\u5728\u7684 markdown \u6807\u8bb0<\/span><br \/>\n    code <span class=\"token operator\">&#061;<\/span> re<span class=\"token punctuation\">.<\/span>sub<span class=\"token punctuation\">(<\/span><span class=\"token string\">r&#039;^&#096;&#096;&#096;python\\\\n|^&#096;&#096;&#096;\\\\n|&#096;&#096;&#096;$&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">,<\/span> code<span class=\"token punctuation\">,<\/span> flags<span class=\"token operator\">&#061;<\/span>re<span class=\"token punctuation\">.<\/span>MULTILINE<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u751f\u6210\u7684\u4ee3\u7801\u9884\u89c8:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>code<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">200]<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#8230;&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    chart_paths <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u6267\u884c\u751f\u6210\u7684\u4ee3\u7801<\/span><br \/>\n        local_vars <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">exec<\/span><span class=\"token punctuation\">(<\/span>code<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">globals<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> local_vars<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u68c0\u67e5\u751f\u6210\u7684\u6587\u4ef6<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> os<span class=\"token punctuation\">.<\/span>path<span class=\"token punctuation\">.<\/span>exists<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/..\/agent\/data_graph_agent\/dynamic_chart_1.png&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            chart_paths<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart_1.png&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> os<span class=\"token punctuation\">.<\/span>path<span class=\"token punctuation\">.<\/span>exists<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/..\/agent\/data_graph_agent\/dynamic_chart_2.png&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            chart_paths<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart_2.png&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;generated_code&#034;<\/span><span class=\"token punctuation\">:<\/span> code<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;chart_paths&#034;<\/span><span class=\"token punctuation\">:<\/span> chart_paths<span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6267\u884c\u751f\u6210\u7684\u7ed8\u56fe\u4ee3\u7801\u5931\u8d25: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\\\\n\u4ee3\u7801\u5185\u5bb9:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>code<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\"># 3. \u64b0\u5199\u62a5\u544a\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">write_report_node<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">:<\/span> AgentState<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\">&#034;&#8212; \u8282\u70b9 3: \u6b63\u5728\u64b0\u5199\u6570\u636e\u5206\u6790\u62a5\u544a &#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> state<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;error&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> state<\/p>\n<p>    summary <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;data_summary&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    charts <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;chart_paths&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    code <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;generated_code&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>    prompt <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;&#034;&#034;<br \/>\n    \u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u6570\u636e\u5206\u6790\u5e08\u3002\u8bf7\u6839\u636e\u4ee5\u4e0b\u6570\u636e\u6458\u8981\u548c\u751f\u6210\u7684\u56fe\u8868\u7f16\u5199\u4e00\u4efd\u6df1\u5ea6\u5206\u6790\u62a5\u544a\u3002<\/p>\n<p>    \u6570\u636e\u6458\u8981:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>summary<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u751f\u6210\u7684\u56fe\u8868\u6587\u4ef6: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#039;, &#039;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>charts<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u7ed8\u56fe\u903b\u8f91\u53c2\u8003\u4ee3\u7801:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>code<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u62a5\u544a\u8981\u6c42:<br \/>\n    1. \u5305\u542b\u6570\u636e\u6982\u89c8\u3002<br \/>\n    2. \u89e3\u91ca\u4e3a\u4ec0\u4e48\u9009\u62e9\u751f\u6210\u8fd9\u4e9b\u56fe\u8868&#xff0c;\u4ee5\u53ca\u56fe\u8868\u53cd\u6620\u4e86\u4ec0\u4e48\u4e1a\u52a1\u6d1e\u5bdf\u3002<br \/>\n    3. \u5728\u62a5\u544a\u4e2d\u5408\u9002\u7684\u4f4d\u7f6e\u5f15\u7528\u56fe\u8868&#xff08;\u4f7f\u7528 Markdown \u8bed\u6cd5 ![\u56fe\u8868\u63cf\u8ff0](\u6587\u4ef6\u540d)&#xff09;\u3002<br \/>\n    4. \u63d0\u4f9b\u57fa\u4e8e\u6570\u636e\u7684\u7ed3\u8bba\u6216\u5efa\u8bae\u3002<br \/>\n    5. \u4f7f\u7528\u4e2d\u6587\u64b0\u5199&#xff0c;\u4fdd\u6301\u4e13\u4e1a\u6027\u3002<br \/>\n    &#034;&#034;&#034;<\/span><\/span><\/p>\n<p>    messages <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><br \/>\n        SystemMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u6570\u636e\u5206\u6790\u52a9\u624b\u3002&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        HumanMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span>prompt<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">]<\/span><\/p>\n<p>    response <span class=\"token operator\">&#061;<\/span> llm<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span>messages<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;report&#034;<\/span><span class=\"token punctuation\">:<\/span> response<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\"># \u6784\u5efa\u5de5\u4f5c\u6d41<\/span><br \/>\nworkflow <span class=\"token operator\">&#061;<\/span> StateGraph<span class=\"token punctuation\">(<\/span>AgentState<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u6dfb\u52a0\u8282\u70b9<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_node<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read_file&#034;<\/span><span class=\"token punctuation\">,<\/span> read_file_node<span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_node<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart&#034;<\/span><span class=\"token punctuation\">,<\/span> dynamic_chart_node<span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_node<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;write_report&#034;<\/span><span class=\"token punctuation\">,<\/span> write_report_node<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u8bbe\u7f6e\u5165\u53e3\u70b9<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>set_entry_point<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read_file&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u6dfb\u52a0\u8fb9<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_edge<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read_file&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;dynamic_chart&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_edge<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;write_report&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_edge<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;write_report&#034;<\/span><span class=\"token punctuation\">,<\/span> END<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u7f16\u8bd1<\/span><br \/>\napp <span class=\"token operator\">&#061;<\/span> workflow<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">compile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u8fd0\u884c\u793a\u4f8b<\/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 comment\"># \u786e\u4fdd\u6709\u6d4b\u8bd5\u6570\u636e<\/span><br \/>\n    test_file <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;scores.csv&#034;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> os<span class=\"token punctuation\">.<\/span>path<span class=\"token punctuation\">.<\/span>exists<span class=\"token punctuation\">(<\/span>test_file<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        df_test <span class=\"token operator\">&#061;<\/span> pd<span class=\"token punctuation\">.<\/span>DataFrame<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#039;Month&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;Jan&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Feb&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Mar&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Apr&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;May&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Jun&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;Sales&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">120<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">150<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">130<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">170<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">200<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;Profit&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">25<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">40<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">70<\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        df_test<span class=\"token punctuation\">.<\/span>to_csv<span class=\"token punctuation\">(<\/span>test_file<span class=\"token punctuation\">,<\/span> index<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    inputs <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;file_path&#034;<\/span><span class=\"token punctuation\">:<\/span> test_file<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;chart_paths&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f00\u59cb\u6267\u884c LangGraph \u5de5\u4f5c\u6d41&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    final_result <span class=\"token operator\">&#061;<\/span> app<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span>inputs<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> final_result<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;report&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">with<\/span> <span class=\"token builtin\">open<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/..\/agent\/data_graph_agent\/dynamic_analysis_report.md&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;w&#034;<\/span><span class=\"token punctuation\">,<\/span> encoding<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;utf-8&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> f<span class=\"token punctuation\">:<\/span><br \/>\n            f<span class=\"token punctuation\">.<\/span>write<span class=\"token punctuation\">(<\/span>final_result<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;report&#039;<\/span><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\">&#034;\\\\n\u62a5\u544a\u5df2\u751f\u6210: dynamic_analysis_report.md&#034;<\/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;\u751f\u6210\u7684\u56fe\u8868: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#039;, &#039;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>final_result<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;chart_paths&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> final_result<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;error&#039;<\/span><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;\\\\n\u53d1\u751f\u9519\u8bef: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>final_result<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;error&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h2>\u4ee3\u7801\u89e3\u91ca<\/h2>\n<h3>\u5bfc\u5165\u6a21\u5757<\/h3>\n<ul>\n<li>os&#xff1a;\u63d0\u4f9b\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u4ea4\u4e92\u7684\u529f\u80fd&#xff0c;\u5982\u6587\u4ef6\u8def\u5f84\u64cd\u4f5c\u3001\u73af\u5883\u53d8\u91cf\u7ba1\u7406\u3002<\/li>\n<li>re&#xff1a;\u7528\u4e8e\u6b63\u5219\u8868\u8fbe\u5f0f\u64cd\u4f5c&#xff0c;\u652f\u6301\u5b57\u7b26\u4e32\u5339\u914d\u3001\u641c\u7d22\u548c\u66ff\u6362\u7b49\u590d\u6742\u6587\u672c\u5904\u7406\u3002<\/li>\n<li>typing&#xff1a;\u5f15\u5165\u7c7b\u578b\u6ce8\u89e3&#xff08;\u5982TypedDict, List, Optional&#xff09;&#xff0c;\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u5065\u58ee\u6027&#xff0c;\u65b9\u4fbf\u9759\u6001\u7c7b\u578b\u68c0\u67e5\u3002<\/li>\n<li>pandas&#xff1a;\u662f\u6838\u5fc3\u7684\u6570\u636e\u5904\u7406\u5e93&#xff0c;\u4ee5\u5176\u9ad8\u6548\u7684DataFrame\u548cSeries\u6570\u636e\u7ed3\u6784\u8457\u79f0&#xff0c;\u652f\u6301\u4ece\u591a\u79cd\u6570\u636e\u6e90\u8fdb\u884c\u6570\u636e\u6e05\u6d17\u3001\u5206\u6790\u548c\u8f6c\u6362\u7b49\u64cd\u4f5c\u3002<\/li>\n<li>langgraph\u76f8\u5173\u7ec4\u4ef6&#xff08;StateGraph, END&#xff09;&#xff1a;\u7528\u4e8e\u6784\u5efa\u57fa\u4e8e\u72b6\u6001\u7684\u6709\u5411\u56fe\u6216\u5de5\u4f5c\u6d41&#xff0c;\u7279\u522b\u9002\u7528\u4e8e\u521b\u5efa\u591a\u6b65\u9aa4\u7684AI\u4ee3\u7406\u6216\u590d\u6742\u7684\u51b3\u7b56\u6d41\u7a0b\u3002<\/li>\n<li>langchain_core.messages&#xff08;HumanMessage, SystemMessage&#xff09;&#xff1a;\u63d0\u4f9b\u4e86\u8868\u793a\u5bf9\u8bdd\u4e2d\u4e0d\u540c\u89d2\u8272\u6d88\u606f&#xff08;\u5982\u7528\u6237\u6d88\u606f\u3001\u7cfb\u7edf\u6d88\u606f&#xff09;\u7684\u7c7b&#xff0c;\u662f\u6784\u5efa\u5bf9\u8bdd\u7cfb\u7edf\u7684\u57fa\u77f3\u3002<\/li>\n<li>langchain.chat_models&#xff08;init_chat_model&#xff09;&#xff1a;\u7528\u4e8e\u521d\u59cb\u5316\u548c\u914d\u7f6e\u804a\u5929\u6a21\u578b&#xff08;\u4f8b\u5982\u5927\u578b\u8bed\u8a00\u6a21\u578b&#xff09;&#xff0c;\u662f\u4e0eAI\u6a21\u578b\u4ea4\u4e92\u7684\u6838\u5fc3\u5de5\u5177\u3002<\/li>\n<li>matplotlib.pyplot&#xff1a;\u662f\u5e38\u7528\u7684\u6570\u636e\u53ef\u89c6\u5316\u5e93&#xff0c;\u7528\u4e8e\u5c06\u6570\u636e\u5904\u7406\u6216\u5206\u6790\u7ed3\u679c\u751f\u6210\u5404\u79cd\u7c7b\u578b\u7684\u56fe\u8868\u548c\u56fe\u5f62\u3002<\/li>\n<\/ul>\n<p><span class=\"token keyword\">import<\/span> os<br \/>\n<span class=\"token keyword\">import<\/span> pandas <span class=\"token keyword\">as<\/span> pd<br \/>\n<span class=\"token keyword\">import<\/span> re<br \/>\n<span class=\"token keyword\">from<\/span> typing <span class=\"token keyword\">import<\/span> TypedDict<span class=\"token punctuation\">,<\/span> List<span class=\"token punctuation\">,<\/span> Optional<br \/>\n<span class=\"token keyword\">from<\/span> langgraph<span class=\"token punctuation\">.<\/span>graph <span class=\"token keyword\">import<\/span> StateGraph<span class=\"token punctuation\">,<\/span> END<br \/>\n<span class=\"token keyword\">from<\/span> langchain_core<span class=\"token punctuation\">.<\/span>messages <span class=\"token keyword\">import<\/span> HumanMessage<span class=\"token punctuation\">,<\/span> SystemMessage<br \/>\n<span class=\"token keyword\">from<\/span> langchain<span class=\"token punctuation\">.<\/span>chat_models <span class=\"token keyword\">import<\/span> init_chat_model<br \/>\n<span class=\"token keyword\">import<\/span> matplotlib<span class=\"token punctuation\">.<\/span>pyplot <span class=\"token keyword\">as<\/span> plt<\/p>\n<h3>\u5b9a\u4e49\u72b6\u6001\u6570\u636e\u7ed3\u6784<\/h3>\n<p>\u8fd9\u662fLangGraph\u667a\u80fd\u4f53\u5de5\u4f5c\u6d41\u8bbe\u8ba1\u7684\u6838\u5fc3\u72b6\u6001\u7c7b&#xff0c;\u5b83\u5b9a\u4e49\u4e86\u6570\u636e\u5206\u6790\u4efb\u52a1\u5728\u6574\u4e2a\u81ea\u52a8\u5316\u6d41\u7a0b\u4e2d\u6d41\u8f6c\u7684\u8bb0\u5fc6\u3002<\/p>\n<p>\u8fd9\u4e2aTypedDict\u7c7b\u6e05\u6670\u5730\u89c4\u5212\u4e86\u5de5\u4f5c\u6d41\u4e2d\u4e03\u4e2a\u5173\u952e\u72b6\u6001\u5b57\u6bb5&#xff1a;<\/p>\n<ul>\n<li>file_path\u200b \u8bb0\u5f55\u4e86\u539f\u59cb\u6570\u636e\u6587\u4ef6\u7684\u8def\u5f84&#xff0c;\u662f\u6d41\u7a0b\u7684\u8d77\u70b9<\/li>\n<li>data_summary\u200b \u548c column_info\u200b \u5b58\u50a8\u4e86\u4ece\u6570\u636e\u4e2d\u63d0\u53d6\u7684\u6982\u8981\u548c\u5143\u6570\u636e<\/li>\n<li>generated_code\u200b \u4fdd\u5b58\u4e86AI\u52a8\u6001\u751f\u6210\u7684\u56fe\u8868\u4ee3\u7801<\/li>\n<li>chart_paths\u200b \u8bb0\u5f55\u4e86\u7531\u4ee3\u7801\u6267\u884c\u4ea7\u751f\u7684\u53ef\u89c6\u5316\u6587\u4ef6<\/li>\n<li>report\u200b \u5305\u542b\u4e86\u6700\u7ec8\u751f\u6210\u7684\u5206\u6790\u62a5\u544a<\/li>\n<li>error\u200b \u4f5c\u4e3a\u53ef\u9009\u5b57\u6bb5&#xff0c;\u4e13\u95e8\u7528\u4e8e\u6355\u83b7\u548c\u4f20\u9012\u6d41\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u9519\u8bef\u4fe1\u606f<\/li>\n<\/ul>\n<p><span class=\"token comment\"># \u5b9a\u4e49\u72b6\u6001<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AgentState<\/span><span class=\"token punctuation\">(<\/span>TypedDict<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    file_path<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    data_summary<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    column_info<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    chart_paths<span class=\"token punctuation\">:<\/span> List<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    generated_code<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    report<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><br \/>\n    error<span class=\"token punctuation\">:<\/span> Optional<span class=\"token punctuation\">[<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<h3>\u521d\u59cb\u5316LLM<\/h3>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u662f\u914d\u7f6e\u5927\u8bed\u8a00\u6a21\u578b&#xff0c;\u8bb0\u5f97\u66f4\u6362\u81ea\u5df1\u7684api_key<\/p>\n<p><span class=\"token comment\"># \u521d\u59cb\u5316 LLM<\/span><br \/>\nos<span class=\"token punctuation\">.<\/span>environ<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;DEEPSEEK_API_KEY&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u6362\u6210\u81ea\u5df1\u7684api_key&#034;<\/span><\/p>\n<p>llm <span class=\"token operator\">&#061;<\/span> init_chat_model<span class=\"token punctuation\">(<\/span>model<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#039;deepseek-chat&#039;<\/span><span class=\"token punctuation\">,<\/span> model_provider<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;deepseek&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u6587\u4ef6\u8bfb\u53d6\u8282\u70b9<\/h3>\n<p>\u8fd9\u662f\u4e00\u4e2a\u6570\u636e\u5206\u6790\u5de5\u4f5c\u6d41\u7684\u5165\u53e3\u8282\u70b9&#xff0c;\u8d1f\u8d23\u8bfb\u53d6\u539f\u59cb\u6570\u636e\u6587\u4ef6\u5e76\u8fdb\u884c\u521d\u6b65\u63a2\u7d22\u6027\u5206\u6790&#xff0c;\u4e3a\u540e\u7eed\u7684\u6570\u636e\u5904\u7406\u548c\u53ef\u89c6\u5316\u63d0\u4f9b\u57fa\u7840\u3002<\/p>\n<p>\u8be5\u8282\u70b9\u7684\u6838\u5fc3\u529f\u80fd\u662f\u6570\u636e\u52a0\u8f7d\u4e0e\u5143\u6570\u636e\u63d0\u53d6\u3002\u5b83\u63a5\u6536\u4e00\u4e2a\u5305\u542b\u6587\u4ef6\u8def\u5f84\u7684\u72b6\u6001\u5b57\u5178&#xff0c;\u4f7f\u7528Pandas\u5e93\u8bfb\u53d6CSV\u6587\u4ef6&#xff0c;\u5e76\u667a\u80fd\u5730\u751f\u6210\u4e24\u4efd\u5173\u952e\u4fe1\u606f&#xff1a; \u6570\u636e\u6982\u89c8&#xff1a;\u5305\u62ec\u6570\u636e\u96c6\u89c4\u6a21&#xff08;\u884c\u6570\u548c\u5217\u6570&#xff09;\u3001\u6570\u636e\u9884\u89c8\u548c\u7edf\u8ba1\u6458\u8981&#xff0c;\u8ba9\u4f7f\u7528\u8005\u80fd\u5feb\u901f\u628a\u63e1\u6570\u636e\u5168\u8c8c\u3002 \u5217\u8be6\u7ec6\u4fe1\u606f&#xff1a;\u4e3a\u6bcf\u4e00\u5217\u8bb0\u5f55\u5176\u6570\u636e\u7c7b\u578b\u548c\u552f\u4e00\u503c\u6570\u91cf&#xff0c;\u8fd9\u5bf9\u4e8e\u540e\u7eed\u5224\u65ad\u5408\u9002\u7684\u5206\u6790\u65b9\u6cd5\u548c\u53ef\u89c6\u5316\u56fe\u8868\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><span class=\"token comment\"># 1. \u9605\u8bfb\u6587\u4ef6\u5185\u5bb9\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">read_file_node<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">:<\/span> AgentState<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\">&#034;&#8212; \u8282\u70b9 1: \u6b63\u5728\u8bfb\u53d6\u6587\u4ef6\u5e76\u63d0\u53d6\u5143\u6570\u636e &#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    file_path <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;file_path&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        df <span class=\"token operator\">&#061;<\/span> pd<span class=\"token punctuation\">.<\/span>read_csv<span class=\"token punctuation\">(<\/span>file_path<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u63d0\u53d6\u5217\u4fe1\u606f\u548c\u6570\u636e\u7c7b\u578b<\/span><br \/>\n        col_info <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> col <span class=\"token keyword\">in<\/span> df<span class=\"token punctuation\">.<\/span>columns<span class=\"token punctuation\">:<\/span><br \/>\n            col_info<span class=\"token punctuation\">.<\/span>append<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>col<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">[<\/span>col<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>dtype<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> (\u552f\u4e00\u503c\u6570\u91cf: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">[<\/span>col<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>nunique<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">)&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        summary <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6570\u636e\u96c6\u5305\u542b <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>df<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u884c\u548c <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">len<\/span><span class=\"token punctuation\">(<\/span>df<span class=\"token punctuation\">.<\/span>columns<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u5217\u3002\\\\n&#034;<\/span><\/span><br \/>\n        summary <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6570\u636e\u9884\u89c8:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">.<\/span>head<span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>to_string<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\\\\n&#034;<\/span><\/span><br \/>\n        summary <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u7edf\u8ba1\u6458\u8981:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>df<span class=\"token punctuation\">.<\/span>describe<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>to_string<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#034;data_summary&#034;<\/span><span class=\"token punctuation\">:<\/span> summary<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#034;column_info&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>col_info<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u8bfb\u53d6\u6587\u4ef6\u5931\u8d25: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u52a8\u6001\u56fe\u8868\u751f\u6210\u8282\u70b9<\/h3>\n<p>\u8fd9\u662f\u4e00\u4e2a\u57fa\u4e8e\u5927\u8bed\u8a00\u6a21\u578b\u7684\u52a8\u6001\u56fe\u8868\u4ee3\u7801\u751f\u6210\u4e0e\u6267\u884c\u8282\u70b9&#xff0c;\u5b83\u901a\u8fc7\u667a\u80fd\u5206\u6790\u6570\u636e\u7279\u5f81\u81ea\u52a8\u751f\u6210\u53ef\u89c6\u5316\u4ee3\u7801&#xff0c;\u5b9e\u73b0\u4e86\u4ece\u6570\u636e\u5230\u56fe\u8868\u7684\u5168\u81ea\u52a8\u5316\u8f6c\u6362\u3002\u8be5\u8282\u70b9\u9996\u5148\u5229\u7528\u5305\u542b\u6570\u636e\u6458\u8981\u548c\u5217\u8be6\u7ec6\u4fe1\u606f\u7684\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u63d0\u793a\u8bcd&#xff0c;\u5f15\u5bfcLLM\u626e\u6f14\u6570\u636e\u53ef\u89c6\u5316\u4e13\u5bb6\u89d2\u8272&#xff0c;\u751f\u6210\u7b26\u5408\u89c4\u8303&#xff08;\u4f7f\u7528Matplotlib\/Seaborn\u3001\u5305\u542b\u9519\u8bef\u5904\u7406\u3001\u76f4\u63a5\u4fdd\u5b58\u56fe\u8868\u6587\u4ef6&#xff09;\u7684Python\u4ee3\u7801&#xff1b;\u63a5\u7740\u5bf9LLM\u8f93\u51fa\u8fdb\u884c\u6e05\u7406\u4ee5\u53bb\u9664\u53ef\u80fd\u7684Markdown\u6807\u8bb0&#xff0c;\u6700\u540e\u901a\u8fc7exec()\u51fd\u6570\u5728\u9694\u79bb\u73af\u5883\u4e2d\u52a8\u6001\u6267\u884c\u751f\u6210\u7684\u4ee3\u7801&#xff0c;\u5e76\u9a8c\u8bc1\u56fe\u8868\u6587\u4ef6\u662f\u5426\u6210\u529f\u751f\u6210&#xff0c;\u4ece\u800c\u5c06\u4f20\u7edf\u7684\u9759\u6001\u56fe\u8868\u5236\u4f5c\u6d41\u7a0b\u5347\u7ea7\u4e3a\u667a\u80fd\u5316\u7684\u6309\u9700\u751f\u6210\u6a21\u5f0f\u3002<\/p>\n<p><span class=\"token comment\"># 2. \u52a8\u6001\u751f\u6210\u7ed8\u56fe\u4ee3\u7801\u5e76\u6267\u884c\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">dynamic_chart_node<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">:<\/span> AgentState<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\">&#034;&#8212; \u8282\u70b9 2: \u6b63\u5728\u52a8\u6001\u751f\u6210\u5e76\u6267\u884c\u7ed8\u56fe\u4ee3\u7801 &#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> state<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;error&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> state<\/p>\n<p>    summary <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;data_summary&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    col_info <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;column_info&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    file_path <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;file_path&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>    prompt <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;&#034;&#034;<br \/>\n    \u4f60\u662f\u4e00\u4e2a\u9ad8\u7ea7\u6570\u636e\u53ef\u89c6\u5316\u4e13\u5bb6\u3002\u8bf7\u6839\u636e\u4ee5\u4e0b\u6570\u636e\u4fe1\u606f&#xff0c;\u7f16\u5199\u4e00\u6bb5 Python \u4ee3\u7801\u6765\u751f\u6210 1-2 \u5f20\u6700\u80fd\u53cd\u6620\u6570\u636e\u7279\u5f81\u7684\u56fe\u8868\u3002<\/p>\n<p>    \u6587\u4ef6\u8def\u5f84: &#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>file_path<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039; (\u8bf7\u76f4\u63a5\u4f7f\u7528 pd.read_csv(&#039;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>file_path<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#039;) \u8bfb\u53d6)<br \/>\n    \u6570\u636e\u6458\u8981:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>summary<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u5217\u8be6\u7ec6\u4fe1\u606f:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>col_info<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u4ee3\u7801\u8981\u6c42:<br \/>\n    1. \u4f7f\u7528 matplotlib \u6216 seaborn \u7ed8\u56fe\u3002<br \/>\n    2. \u5fc5\u987b\u5c06\u56fe\u8868\u4fdd\u5b58\u4e3a\u6587\u4ef6&#xff0c;\u6587\u4ef6\u540d\u8bf7\u4f7f\u7528 &#039;dynamic_chart_1.png&#039; (\u5982\u679c\u6709\u7b2c\u4e8c\u5f20&#xff0c;\u4f7f\u7528 &#039;dynamic_chart_2.png&#039;)\u3002<br \/>\n    3. \u4ee3\u7801\u4e2d\u4e0d\u8981\u5305\u542b plt.show()&#xff0c;\u53ea\u9700\u4fdd\u5b58\u3002<br \/>\n    4. \u786e\u4fdd\u4ee3\u7801\u5065\u58ee&#xff0c;\u5904\u7406\u53ef\u80fd\u7684\u7f3a\u5931\u503c\u3002<br \/>\n    5. \u53ea\u8f93\u51fa\u7eaf Python \u4ee3\u7801&#xff0c;\u4e0d\u8981\u5305\u542b Markdown \u4ee3\u7801\u5757\u6807\u8bb0\u3002<br \/>\n    &#034;&#034;&#034;<\/span><\/span><\/p>\n<p>    messages <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><br \/>\n        SystemMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u4f60\u662f\u4e00\u4e2a\u53ea\u8f93\u51fa Python \u4ee3\u7801\u7684\u4e13\u5bb6\u3002\u4e0d\u8981\u89e3\u91ca&#xff0c;\u4e0d\u8981\u4f7f\u7528 Markdown \u683c\u5f0f\u3002&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        HumanMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span>prompt<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">]<\/span><\/p>\n<p>    response <span class=\"token operator\">&#061;<\/span> llm<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span>messages<span class=\"token punctuation\">)<\/span><br \/>\n    code <span class=\"token operator\">&#061;<\/span> response<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">.<\/span>strip<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\"># \u6e05\u7406\u53ef\u80fd\u5b58\u5728\u7684 markdown \u6807\u8bb0<\/span><br \/>\n    code <span class=\"token operator\">&#061;<\/span> re<span class=\"token punctuation\">.<\/span>sub<span class=\"token punctuation\">(<\/span><span class=\"token string\">r&#039;^&#096;&#096;&#096;python\\\\n|^&#096;&#096;&#096;\\\\n|&#096;&#096;&#096;$&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">,<\/span> code<span class=\"token punctuation\">,<\/span> flags<span class=\"token operator\">&#061;<\/span>re<span class=\"token punctuation\">.<\/span>MULTILINE<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u751f\u6210\u7684\u4ee3\u7801\u9884\u89c8:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>code<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">200]<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#8230;&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    chart_paths <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u6267\u884c\u751f\u6210\u7684\u4ee3\u7801<\/span><br \/>\n        local_vars <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">exec<\/span><span class=\"token punctuation\">(<\/span>code<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">globals<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> local_vars<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u68c0\u67e5\u751f\u6210\u7684\u6587\u4ef6<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> os<span class=\"token punctuation\">.<\/span>path<span class=\"token punctuation\">.<\/span>exists<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/..\/agent\/data_graph_agent\/dynamic_chart_1.png&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            chart_paths<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart_1.png&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> os<span class=\"token punctuation\">.<\/span>path<span class=\"token punctuation\">.<\/span>exists<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/..\/agent\/data_graph_agent\/dynamic_chart_2.png&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            chart_paths<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart_2.png&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;generated_code&#034;<\/span><span class=\"token punctuation\">:<\/span> code<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;chart_paths&#034;<\/span><span class=\"token punctuation\">:<\/span> chart_paths<span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6267\u884c\u751f\u6210\u7684\u7ed8\u56fe\u4ee3\u7801\u5931\u8d25: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\\\\n\u4ee3\u7801\u5185\u5bb9:\\\\n<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>code<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u62a5\u544a\u6525\u5199\u8282\u70b9<\/h3>\n<p>\u8fd9\u662f\u4e00\u4e2a\u57fa\u4e8e\u5927\u8bed\u8a00\u6a21\u578b\u7684\u81ea\u52a8\u5316\u62a5\u544a\u751f\u6210\u8282\u70b9&#xff0c;\u5b83\u5728\u6570\u636e\u5206\u6790\u5de5\u4f5c\u6d41\u4e2d\u626e\u6f14\u6700\u7ec8\u8f93\u51fa\u89d2\u8272&#xff0c;\u80fd\u591f\u667a\u80fd\u6574\u5408\u6570\u636e\u6458\u8981\u3001\u53ef\u89c6\u5316\u56fe\u8868\u548c\u7ed8\u56fe\u903b\u8f91\u4ee3\u7801&#xff0c;\u751f\u6210\u5305\u542b\u6570\u636e\u6982\u89c8\u3001\u56fe\u8868\u89e3\u8bfb\u3001\u4e1a\u52a1\u6d1e\u5bdf\u548c\u53ef\u884c\u6027\u5efa\u8bae\u7684\u5b8c\u6574\u4e2d\u6587\u5206\u6790\u62a5\u544a<\/p>\n<p><span class=\"token comment\"># 3. \u64b0\u5199\u62a5\u544a\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">write_report_node<\/span><span class=\"token punctuation\">(<\/span>state<span class=\"token punctuation\">:<\/span> AgentState<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\">&#034;&#8212; \u8282\u70b9 3: \u6b63\u5728\u64b0\u5199\u6570\u636e\u5206\u6790\u62a5\u544a &#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> state<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;error&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> state<\/p>\n<p>    summary <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;data_summary&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    charts <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;chart_paths&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    code <span class=\"token operator\">&#061;<\/span> state<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;generated_code&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>    prompt <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;&#034;&#034;<br \/>\n    \u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u6570\u636e\u5206\u6790\u5e08\u3002\u8bf7\u6839\u636e\u4ee5\u4e0b\u6570\u636e\u6458\u8981\u548c\u751f\u6210\u7684\u56fe\u8868\u7f16\u5199\u4e00\u4efd\u6df1\u5ea6\u5206\u6790\u62a5\u544a\u3002<\/p>\n<p>    \u6570\u636e\u6458\u8981:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>summary<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u751f\u6210\u7684\u56fe\u8868\u6587\u4ef6: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#039;, &#039;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>charts<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u7ed8\u56fe\u903b\u8f91\u53c2\u8003\u4ee3\u7801:<br \/>\n    <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>code<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"><\/p>\n<p>    \u62a5\u544a\u8981\u6c42:<br \/>\n    1. \u5305\u542b\u6570\u636e\u6982\u89c8\u3002<br \/>\n    2. \u89e3\u91ca\u4e3a\u4ec0\u4e48\u9009\u62e9\u751f\u6210\u8fd9\u4e9b\u56fe\u8868&#xff0c;\u4ee5\u53ca\u56fe\u8868\u53cd\u6620\u4e86\u4ec0\u4e48\u4e1a\u52a1\u6d1e\u5bdf\u3002<br \/>\n    3. \u5728\u62a5\u544a\u4e2d\u5408\u9002\u7684\u4f4d\u7f6e\u5f15\u7528\u56fe\u8868&#xff08;\u4f7f\u7528 Markdown \u8bed\u6cd5 ![\u56fe\u8868\u63cf\u8ff0](\u6587\u4ef6\u540d)&#xff09;\u3002<br \/>\n    4. \u63d0\u4f9b\u57fa\u4e8e\u6570\u636e\u7684\u7ed3\u8bba\u6216\u5efa\u8bae\u3002<br \/>\n    5. \u4f7f\u7528\u4e2d\u6587\u64b0\u5199&#xff0c;\u4fdd\u6301\u4e13\u4e1a\u6027\u3002<br \/>\n    &#034;&#034;&#034;<\/span><\/span><\/p>\n<p>    messages <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><br \/>\n        SystemMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u6570\u636e\u5206\u6790\u52a9\u624b\u3002&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        HumanMessage<span class=\"token punctuation\">(<\/span>content<span class=\"token operator\">&#061;<\/span>prompt<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">]<\/span><\/p>\n<p>    response <span class=\"token operator\">&#061;<\/span> llm<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span>messages<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;report&#034;<\/span><span class=\"token punctuation\">:<\/span> response<span class=\"token punctuation\">.<\/span>content<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u5de5\u4f5c\u6d41\u6784\u5efa<\/h3>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u4f7f\u7528 LangGraph \u7684 StateGraph\u6784\u5efa\u4e86\u4e00\u4e2a\u987a\u5e8f\u6267\u884c\u7684\u6570\u636e\u5206\u6790\u5de5\u4f5c\u6d41&#xff0c;\u901a\u8fc7\u5b9a\u4e49\u4e09\u4e2a\u529f\u80fd\u8282\u70b9&#xff08;\u8bfb\u53d6\u6587\u4ef6\u3001\u52a8\u6001\u751f\u6210\u56fe\u8868\u3001\u64b0\u5199\u62a5\u544a&#xff09;\u5e76\u8bbe\u7f6e\u7ebf\u6027\u7684\u8fb9\u8fde\u63a5&#xff0c;\u5c06\u6574\u4e2a\u5206\u6790\u6d41\u7a0b\u7f16\u6392\u4e3a\u4e00\u4e2a\u4ece\u6570\u636e\u8f93\u5165\u5230\u62a5\u544a\u8f93\u51fa\u7684\u81ea\u52a8\u5316\u7ba1\u9053&#xff0c;\u6700\u540e\u901a\u8fc7 compile()\u65b9\u6cd5\u5c06\u5176\u7f16\u8bd1\u4e3a\u53ef\u6267\u884c\u7684\u5e94\u7528\u5b9e\u4f8b \u3002<\/p>\n<p><span class=\"token comment\"># \u6784\u5efa\u5de5\u4f5c\u6d41<\/span><br \/>\nworkflow <span class=\"token operator\">&#061;<\/span> StateGraph<span class=\"token punctuation\">(<\/span>AgentState<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u6dfb\u52a0\u8282\u70b9<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_node<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read_file&#034;<\/span><span class=\"token punctuation\">,<\/span> read_file_node<span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_node<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart&#034;<\/span><span class=\"token punctuation\">,<\/span> dynamic_chart_node<span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_node<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;write_report&#034;<\/span><span class=\"token punctuation\">,<\/span> write_report_node<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u8bbe\u7f6e\u5165\u53e3\u70b9<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>set_entry_point<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read_file&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u6dfb\u52a0\u8fb9<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_edge<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;read_file&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;dynamic_chart&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_edge<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;dynamic_chart&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;write_report&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\nworkflow<span class=\"token punctuation\">.<\/span>add_edge<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;write_report&#034;<\/span><span class=\"token punctuation\">,<\/span> END<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u7f16\u8bd1<\/span><br \/>\napp <span class=\"token operator\">&#061;<\/span> workflow<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">compile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u4e3b\u7a0b\u5e8f\u5165\u53e3<\/h3>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u662f\u6570\u636e\u5206\u6790\u667a\u80fd\u4f53\u7684\u4e3b\u7a0b\u5e8f\u6267\u884c\u6a21\u5757&#xff0c;\u5b83\u9996\u5148\u521b\u5efa\u6216\u9a8c\u8bc1\u6d4b\u8bd5\u6570\u636e\u96c6&#xff0c;\u7136\u540e\u8c03\u7528\u7f16\u8bd1\u597d\u7684LangGraph\u5de5\u4f5c\u6d41\u5b9e\u4f8b&#xff0c;\u4f20\u5165\u521d\u59cb\u72b6\u6001\u89e6\u53d1\u6574\u4e2a\u81ea\u52a8\u5316\u5206\u6790\u6d41\u7a0b\u7684\u6267\u884c&#xff0c;\u6700\u7ec8\u5c06\u751f\u6210\u7684\u5206\u6790\u62a5\u544a\u4fdd\u5b58\u4e3aMarkdown\u6587\u6863\u5e76\u8f93\u51fa\u7ed3\u679c\u6458\u8981\u3002<\/p>\n<p><span class=\"token comment\"># \u8fd0\u884c\u793a\u4f8b<\/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 comment\"># \u786e\u4fdd\u6709\u6d4b\u8bd5\u6570\u636e<\/span><br \/>\n    test_file <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;scores.csv&#034;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> os<span class=\"token punctuation\">.<\/span>path<span class=\"token punctuation\">.<\/span>exists<span class=\"token punctuation\">(<\/span>test_file<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        df_test <span class=\"token operator\">&#061;<\/span> pd<span class=\"token punctuation\">.<\/span>DataFrame<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token string\">&#039;Month&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;Jan&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Feb&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Mar&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Apr&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;May&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Jun&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;Sales&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">120<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">150<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">130<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">170<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">200<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#039;Profit&#039;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">25<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">40<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">70<\/span><span class=\"token punctuation\">]<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        df_test<span class=\"token punctuation\">.<\/span>to_csv<span class=\"token punctuation\">(<\/span>test_file<span class=\"token punctuation\">,<\/span> index<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    inputs <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;file_path&#034;<\/span><span class=\"token punctuation\">:<\/span> test_file<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;chart_paths&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f00\u59cb\u6267\u884c LangGraph \u5de5\u4f5c\u6d41&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    final_result <span class=\"token operator\">&#061;<\/span> app<span class=\"token punctuation\">.<\/span>invoke<span class=\"token punctuation\">(<\/span>inputs<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> final_result<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;report&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">with<\/span> <span class=\"token builtin\">open<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;..\/..\/agent\/data_graph_agent\/dynamic_analysis_report.md&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;w&#034;<\/span><span class=\"token punctuation\">,<\/span> encoding<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;utf-8&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> f<span class=\"token punctuation\">:<\/span><br \/>\n            f<span class=\"token punctuation\">.<\/span>write<span class=\"token punctuation\">(<\/span>final_result<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;report&#039;<\/span><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\">&#034;\\\\n\u62a5\u544a\u5df2\u751f\u6210: dynamic_analysis_report.md&#034;<\/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;\u751f\u6210\u7684\u56fe\u8868: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#039;, &#039;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>final_result<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;chart_paths&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> final_result<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;error&#039;<\/span><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;\\\\n\u53d1\u751f\u9519\u8bef: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>final_result<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;error&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u76ee\u5f55 \u9879\u76ee\u4ecb\u7ecd\u5b8c\u6574\u4ee3\u7801data_analysty.py \u4ee3\u7801\u89e3\u91ca\u5bfc\u5165\u6a21\u5757\u5b9a\u4e49\u72b6\u6001\u6570\u636e\u7ed3\u6784\u521d\u59cb\u5316LLM\u6587\u4ef6\u8bfb\u53d6\u8282\u70b9\u52a8\u6001\u56fe\u8868\u751f\u6210\u8282\u70b9\u62a5\u544a\u6525\u5199\u8282\u70b9\u5de5\u4f5c\u6d41\u6784\u5efa\u4e3b\u7a0b\u5e8f\u5165\u53e3 \u7279\u522b\u63d0\u9192&#xff1a;\u552f\u4e00\u9700\u8981\u6539\u52a8\u7684\u5730\u65b9\u4e3a\u4ee3\u7801\u4e2d\u7684api_key&#xff0c;\u53ef\u524d\u5f80deepseek\u5f00\u653e\u5e73\u53f0\u83b7\u53d6\u2014\u2014<br \/>\n\u70b9\u51fb\u524d\u5f80 \u9879\u76ee\u4ecb\u7ecd<br \/>\n\u8fd9\u662f\u4e00\u4e2a\u57fa\u4e8eLangGraph\u6846\u67b6\u6784\u5efa\u7684\u667a\u80fd\u6570\u636e\u5206\u6790\u4e0e\u53ef\u89c6\u5316\u7cfb\u7edf&#xff0c;\u5b83\u901a\u8fc7\u591a\u8282\u70b9\u81ea\u52a8\u5316\u5de5\u4f5c\u6d41\u5b9e\u73b0\u4ece\u539f\u59cb\u6570\u636e\u5230\u6d1e\u5bdf\u62a5\u544a\u7684\u5168\u6d41\u7a0b\u667a\u80fd\u5904\u7406&#xff0c;\u5c06\u4f20\u7edf\u6570<\/p>\n","protected":false},"author":2,"featured_media":64561,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[801,395,44],"topic":[],"class_list":["post-64562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-801","tag-395","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u57fa\u4e8elanggraph\u7684\u81ea\u52a8\u5316\u6570\u636e\u5206\u6790agent - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/64562.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u57fa\u4e8elanggraph\u7684\u81ea\u52a8\u5316\u6570\u636e\u5206\u6790agent - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u76ee\u5f55 \u9879\u76ee\u4ecb\u7ecd\u5b8c\u6574\u4ee3\u7801data_analysty.py \u4ee3\u7801\u89e3\u91ca\u5bfc\u5165\u6a21\u5757\u5b9a\u4e49\u72b6\u6001\u6570\u636e\u7ed3\u6784\u521d\u59cb\u5316LLM\u6587\u4ef6\u8bfb\u53d6\u8282\u70b9\u52a8\u6001\u56fe\u8868\u751f\u6210\u8282\u70b9\u62a5\u544a\u6525\u5199\u8282\u70b9\u5de5\u4f5c\u6d41\u6784\u5efa\u4e3b\u7a0b\u5e8f\u5165\u53e3 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