{"id":59582,"date":"2026-01-14T07:25:45","date_gmt":"2026-01-13T23:25:45","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/59582.html"},"modified":"2026-01-14T07:25:45","modified_gmt":"2026-01-13T23:25:45","slug":"c-c-%e5%87%bd%e6%95%b0%e6%8c%87%e9%92%88%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/59582.html","title":{"rendered":"C\/C++ \u51fd\u6570\u6307\u9488\u5e94\u7528\u573a\u666f\u8be6\u89e3"},"content":{"rendered":"<\/p>\n<h4>C\/C&#043;&#043; \u51fd\u6570\u6307\u9488\u5e94\u7528\u573a\u666f\u8be6\u89e3<\/h4>\n<ul>\n<li>1\u3001 \u56de\u8c03\u51fd\u6570 (Callback Functions)<\/li>\n<li>2\u3001\u4e8b\u4ef6\u5904\u7406\u4e0e\u6d88\u606f\u4f20\u9012<\/li>\n<li>3\u3001\u52a8\u6001\u51fd\u6570\u8c03\u7528&#xff08;\u51fd\u6570\u8868\/\u8df3\u8f6c\u8868&#xff09;<\/li>\n<li>4\u3001\u5b9e\u73b0\u7b56\u7565\u6a21\u5f0f (Strategy Pattern)<\/li>\n<li>5\u3001 \u72b6\u6001\u673a (State Machines)<\/li>\n<li>6\u3001\u7ebf\u7a0b\u521b\u5efa (Thread Creation)<\/li>\n<li>7\u3001\u603b\u7ed3<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260113232544-6966d478350b7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>1\u3001 \u56de\u8c03\u51fd\u6570 (Callback Functions)<\/h2>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u8fd9\u662f\u51fd\u6570\u6307\u9488\u6700\u7ecf\u5178\u7684\u5e94\u7528\u3002\u5141\u8bb8\u4e00\u4e2a\u51fd\u6570&#xff08;\u901a\u5e38\u662f\u5e93\u51fd\u6570\u6216\u6846\u67b6\u51fd\u6570&#xff09;\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u8c03\u7528\u7528\u6237\u63d0\u4f9b\u7684\u53e6\u4e00\u4e2a\u51fd\u6570\u3002\u4f8b\u5982&#xff0c;\u5728\u6392\u5e8f\u7b97\u6cd5\u4e2d&#xff0c;\u7528\u6237\u53ef\u4ee5\u63d0\u4f9b\u81ea\u5b9a\u4e49\u7684\u6bd4\u8f83\u89c4\u5219&#xff1b;\u5728\u4e8b\u4ef6\u5904\u7406\u7cfb\u7edf\u4e2d&#xff0c;\u7528\u6237\u6ce8\u518c\u5904\u7406\u51fd\u6570\u6765\u54cd\u5e94\u7279\u5b9a\u4e8b\u4ef6\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u6bd4\u8f83\u51fd\u6570\u7684\u7c7b\u578b<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>CompareFunc<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e00\u4e2a\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u7684\u6392\u5e8f\u51fd\u6570 (\u7b80\u5316\u7248)<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">sort_with_callback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span> array<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> size<span class=\"token punctuation\">,<\/span> CompareFunc cmp<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u8fd9\u91cc\u53ef\u4ee5\u7528qsort\u7b49&#xff0c;\u4f46\u4e3a\u4e86\u6f14\u793a\u6211\u4eec\u81ea\u5df1\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u5192\u6ce1<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> size <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> j <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> j <span class=\"token operator\">&lt;<\/span> size <span class=\"token operator\">&#8211;<\/span> i <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> j<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">cmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>array<span class=\"token punctuation\">[<\/span>j<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>array<span class=\"token punctuation\">[<\/span>j<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ \u4f7f\u7528\u56de\u8c03\u6bd4\u8f83<\/span><br \/>\n                <span class=\"token keyword\">int<\/span> temp <span class=\"token operator\">&#061;<\/span> array<span class=\"token punctuation\">[<\/span>j<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                array<span class=\"token punctuation\">[<\/span>j<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> array<span class=\"token punctuation\">[<\/span>j<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                array<span class=\"token punctuation\">[<\/span>j<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> temp<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7528\u6237\u63d0\u4f9b\u7684\u6bd4\u8f83\u51fd\u65701&#xff1a;\u5347\u5e8f<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">compare_asc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> b<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> num_a <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>a<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> num_b <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>b<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> num_a <span class=\"token operator\">&#8211;<\/span> num_b<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7528\u6237\u63d0\u4f9b\u7684\u6bd4\u8f83\u51fd\u65702&#xff1a;\u964d\u5e8f<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">compare_desc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> b<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> num_a <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>a<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> num_b <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>b<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> num_b <span class=\"token operator\">&#8211;<\/span> num_a<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> arr<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">9<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> size <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f7f\u7528\u5347\u5e8f\u6bd4\u8f83\u56de\u8c03<\/span><br \/>\n    <span class=\"token function\">sort_with_callback<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span> size<span class=\"token punctuation\">,<\/span> compare_asc<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Ascending: &#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> size<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d &#034;<\/span><span class=\"token punctuation\">,<\/span> arr<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4f7f\u7528\u964d\u5e8f\u6bd4\u8f83\u56de\u8c03<\/span><br \/>\n    <span class=\"token function\">sort_with_callback<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">,<\/span> size<span class=\"token punctuation\">,<\/span> compare_desc<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Descending: &#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> size<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d &#034;<\/span><span class=\"token punctuation\">,<\/span> arr<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bf4\u660e&#xff1a; sort_with_callback \u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u51fd\u6570\u6307\u9488 cmp \u4f5c\u4e3a\u53c2\u6570\u3002\u5728\u6392\u5e8f\u8fc7\u7a0b\u4e2d&#xff0c;\u5b83\u4f7f\u7528\u8fd9\u4e2a\u6307\u9488\u6307\u5411\u7684\u51fd\u6570\u6765\u51b3\u5b9a\u5143\u7d20\u7684\u987a\u5e8f\u3002\u7528\u6237\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4f20\u9012\u4e0d\u540c\u7684\u6bd4\u8f83\u51fd\u6570&#xff08;compare_asc \u6216 compare_desc&#xff09;\u6765\u5b9e\u73b0\u4e0d\u540c\u7684\u6392\u5e8f\u884c\u4e3a\u3002<\/p>\n<h2>2\u3001\u4e8b\u4ef6\u5904\u7406\u4e0e\u6d88\u606f\u4f20\u9012<\/h2>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5728\u56fe\u5f62\u7528\u6237\u754c\u9762&#xff08;GUI&#xff09;\u7f16\u7a0b\u3001\u6e38\u620f\u5f15\u64ce\u6216\u7f51\u7edc\u5e93\u4e2d&#xff0c;\u7ecf\u5e38\u9700\u8981\u5c06\u7279\u5b9a\u4e8b\u4ef6&#xff08;\u5982\u9f20\u6807\u70b9\u51fb\u3001\u6309\u952e\u3001\u6536\u5230\u7f51\u7edc\u5305&#xff09;\u4e0e\u5904\u7406\u51fd\u6570\u5173\u8054\u8d77\u6765\u3002\u51fd\u6570\u6307\u9488\u53ef\u4ee5\u7528\u6765\u5b58\u50a8\u548c\u8c03\u7528\u8fd9\u4e9b\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;map&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u7684\u7c7b\u578b<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>EventHandler<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>string<span class=\"token operator\">&amp;<\/span> eventData<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e00\u4e2a\u7b80\u5355\u7684\u4e8b\u4ef6\u5206\u53d1\u5668\u7c7b<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EventDispatcher<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">registerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>string<span class=\"token operator\">&amp;<\/span> eventName<span class=\"token punctuation\">,<\/span> EventHandler handler<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        eventHandlers<span class=\"token punctuation\">[<\/span>eventName<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> handler<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">triggerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>string<span class=\"token operator\">&amp;<\/span> eventName<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>string<span class=\"token operator\">&amp;<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">auto<\/span> it <span class=\"token operator\">&#061;<\/span> eventHandlers<span class=\"token punctuation\">.<\/span><span class=\"token function\">find<\/span><span class=\"token punctuation\">(<\/span>eventName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>it <span class=\"token operator\">!&#061;<\/span> eventHandlers<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            it<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">second<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8c03\u7528\u6ce8\u518c\u7684\u5904\u7406\u51fd\u6570<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Event &#039;&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> eventName <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;&#039; not handled.&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>map<span class=\"token operator\">&lt;<\/span>std<span class=\"token double-colon punctuation\">::<\/span>string<span class=\"token punctuation\">,<\/span> EventHandler<span class=\"token operator\">&gt;<\/span> eventHandlers<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7528\u6237\u5b9a\u4e49\u7684\u4e8b\u4ef6\u5904\u7406\u51fd\u65701<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">handleClick<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>string<span class=\"token operator\">&amp;<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Click event handled! Data: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> data <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7528\u6237\u5b9a\u4e49\u7684\u4e8b\u4ef6\u5904\u7406\u51fd\u65702<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">handleKeyPress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> std<span class=\"token double-colon punctuation\">::<\/span>string<span class=\"token operator\">&amp;<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;KeyPress event handled! Data: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> data <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    EventDispatcher dispatcher<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6ce8\u518c\u4e8b\u4ef6\u5904\u7406\u51fd\u6570<\/span><br \/>\n    dispatcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">registerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;click&#034;<\/span><span class=\"token punctuation\">,<\/span> handleClick<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    dispatcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">registerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;keypress&#034;<\/span><span class=\"token punctuation\">,<\/span> handleKeyPress<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u89e6\u53d1\u4e8b\u4ef6<\/span><br \/>\n    dispatcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">triggerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;click&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Left button at (100, 200)&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    dispatcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">triggerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;keypress&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Key: Enter&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    dispatcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">triggerEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;unknown&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Something&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u672a\u6ce8\u518c\u7684\u4e8b\u4ef6<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bf4\u660e&#xff1a; EventDispatcher \u7c7b\u7ef4\u62a4\u4e86\u4e00\u4e2a\u6620\u5c04&#xff0c;\u5c06\u4e8b\u4ef6\u540d\u79f0\u4e0e\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\u5173\u8054\u8d77\u6765\u3002\u5f53\u4e8b\u4ef6\u53d1\u751f\u65f6&#xff0c;triggerEvent \u65b9\u6cd5\u67e5\u627e\u5e76\u8c03\u7528\u6ce8\u518c\u7684\u51fd\u6570\u6307\u9488\u6307\u5411\u7684\u5904\u7406\u51fd\u6570\u3002<\/p>\n<h2>3\u3001\u52a8\u6001\u51fd\u6570\u8c03\u7528&#xff08;\u51fd\u6570\u8868\/\u8df3\u8f6c\u8868&#xff09;<\/h2>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5f53\u9700\u8981\u5728\u8fd0\u884c\u65f6\u6839\u636e\u6761\u4ef6&#xff08;\u5982\u7528\u6237\u8f93\u5165\u3001\u914d\u7f6e\u3001\u72b6\u6001&#xff09;\u9009\u62e9\u8c03\u7528\u4e0d\u540c\u7684\u51fd\u6570\u65f6&#xff0c;\u53ef\u4ee5\u5c06\u51fd\u6570\u6307\u9488\u5b58\u50a8\u5728\u6570\u7ec4\u6216\u7ed3\u6784\u4f53\u4e2d&#xff0c;\u5f62\u6210\u51fd\u6570\u8868&#xff08;Function Table&#xff09;\u6216\u8df3\u8f6c\u8868&#xff08;Jump Table&#xff09;\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u6570\u5b66\u8fd0\u7b97\u51fd\u6570\u7c7b\u578b<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">double<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>MathOperation<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5177\u4f53\u7684\u8fd0\u7b97\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">double<\/span> <span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span> b<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> a <span class=\"token operator\">&#043;<\/span> b<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">double<\/span> <span class=\"token function\">subtract<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span> b<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> a <span class=\"token operator\">&#8211;<\/span> b<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">double<\/span> <span class=\"token function\">multiply<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span> b<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> a <span class=\"token operator\">*<\/span> b<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">double<\/span> <span class=\"token function\">divide<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span> b<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">?<\/span> a <span class=\"token operator\">\/<\/span> b <span class=\"token operator\">:<\/span> <span class=\"token number\">0.0<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/\/ \u7b80\u5355\u5904\u7406\u9664\u96f6<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u521b\u5efa\u4e00\u4e2a\u51fd\u6570\u6307\u9488\u6570\u7ec4 (\u51fd\u6570\u8868)<\/span><br \/>\n    MathOperation operations<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span>add<span class=\"token punctuation\">,<\/span> subtract<span class=\"token punctuation\">,<\/span> multiply<span class=\"token punctuation\">,<\/span> divide<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> opNames<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;Add&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Subtract&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Multiply&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Divide&#034;<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">double<\/span> num1<span class=\"token punctuation\">,<\/span> num2<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> choice<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Enter two numbers: &#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%lf %lf&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>num1<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>num2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Choose operation:\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>operations<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>operations<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d. %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> i <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> opNames<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>choice<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>choice <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span> <span class=\"token operator\">&amp;&amp;<\/span> choice <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>operations<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>operations<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        MathOperation op <span class=\"token operator\">&#061;<\/span> operations<span class=\"token punctuation\">[<\/span>choice <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u83b7\u53d6\u51fd\u6570\u6307\u9488<\/span><br \/>\n        <span class=\"token keyword\">double<\/span> result <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">op<\/span><span class=\"token punctuation\">(<\/span>num1<span class=\"token punctuation\">,<\/span> num2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u52a8\u6001\u8c03\u7528<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Result: %.2lf\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> result<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Invalid choice!\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bf4\u660e&#xff1a; \u5c06\u56db\u4e2a\u4e0d\u540c\u7684\u6570\u5b66\u8fd0\u7b97\u51fd\u6570\u7684\u5730\u5740\u5b58\u50a8\u5728\u6570\u7ec4 operations \u4e2d\u3002\u7528\u6237\u9009\u62e9\u64cd\u4f5c\u540e&#xff0c;\u7a0b\u5e8f\u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u5bf9\u5e94\u7684\u51fd\u6570\u6307\u9488\u5e76\u8fdb\u884c\u8c03\u7528&#xff0c;\u907f\u514d\u4e86\u5197\u957f\u7684 if-else \u6216 switch-case \u8bed\u53e5\u3002<\/p>\n<h2>4\u3001\u5b9e\u73b0\u7b56\u7565\u6a21\u5f0f (Strategy Pattern)<\/h2>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5728\u9762\u5411\u5bf9\u8c61\u8bbe\u8ba1\u4e2d&#xff0c;\u7b56\u7565\u6a21\u5f0f\u5141\u8bb8\u5728\u8fd0\u884c\u65f6\u9009\u62e9\u7b97\u6cd5\u6216\u884c\u4e3a\u3002\u5728 C \u4e2d&#xff0c;\u867d\u7136\u7f3a\u4e4f\u539f\u751f\u9762\u5411\u5bf9\u8c61\u652f\u6301&#xff0c;\u4f46\u53ef\u4ee5\u901a\u8fc7\u7ed3\u6784\u4f53\u5305\u542b\u51fd\u6570\u6307\u9488\u6765\u6a21\u62df\u7b56\u7565\u63a5\u53e3\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u7b56\u7565\u63a5\u53e3 (\u7ed3\u6784\u4f53\u5305\u542b\u51fd\u6570\u6307\u9488)<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>execute<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> context<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6267\u884c\u7b56\u7565\u7684\u51fd\u6570\u6307\u9488<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> Strategy<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5177\u4f53\u7b56\u7565A<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">strategyA_execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> context<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Executing Strategy A. Context: %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>context<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5177\u4f53\u7b56\u7565B<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">strategyB_execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> context<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Executing Strategy B. Context: %s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>context<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4f7f\u7528\u7b56\u7565\u7684\u4e0a\u4e0b\u6587<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Strategy currentStrategy<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">char<\/span> contextInfo<span class=\"token punctuation\">[<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> Context<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">setStrategy<\/span><span class=\"token punctuation\">(<\/span>Context<span class=\"token operator\">*<\/span> ctx<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>func<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    ctx<span class=\"token operator\">-&gt;<\/span>currentStrategy<span class=\"token punctuation\">.<\/span>execute <span class=\"token operator\">&#061;<\/span> func<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">executeStrategy<\/span><span class=\"token punctuation\">(<\/span>Context<span class=\"token operator\">*<\/span> ctx<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ctx<span class=\"token operator\">-&gt;<\/span>currentStrategy<span class=\"token punctuation\">.<\/span>execute<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        ctx<span class=\"token operator\">-&gt;<\/span>currentStrategy<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token operator\">-&gt;<\/span>contextInfo<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Context ctx<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">snprintf<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">.<\/span>contextInfo<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>ctx<span class=\"token punctuation\">.<\/span>contextInfo<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Some important data&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5e76\u4f7f\u7528\u7b56\u7565A<\/span><br \/>\n    <span class=\"token function\">setStrategy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>ctx<span class=\"token punctuation\">,<\/span> strategyA_execute<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">executeStrategy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>ctx<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u5e76\u4f7f\u7528\u7b56\u7565B<\/span><br \/>\n    <span class=\"token function\">setStrategy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>ctx<span class=\"token punctuation\">,<\/span> strategyB_execute<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">executeStrategy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>ctx<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bf4\u660e&#xff1a; Strategy \u7ed3\u6784\u4f53\u5b9a\u4e49\u4e86\u4e00\u4e2a\u201c\u63a5\u53e3\u201d&#xff08;\u901a\u8fc7\u51fd\u6570\u6307\u9488&#xff09;\u3002Context \u7ed3\u6784\u4f53\u6301\u6709\u5f53\u524d\u7b56\u7565\u3002\u901a\u8fc7 setStrategy \u53ef\u4ee5\u52a8\u6001\u66f4\u6362\u7b56\u7565&#xff08;\u8bbe\u7f6e\u4e0d\u540c\u7684\u51fd\u6570\u6307\u9488&#xff09;&#xff0c;\u7136\u540e\u901a\u8fc7 executeStrategy \u6267\u884c\u5f53\u524d\u7b56\u7565\u3002\u8fd9\u5b9e\u73b0\u4e86\u7b97\u6cd5\u65cf\u7684\u5c01\u88c5\u548c\u52a8\u6001\u5207\u6362\u3002<\/p>\n<h2>5\u3001 \u72b6\u6001\u673a (State Machines)<\/h2>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5728\u5b9e\u73b0\u590d\u6742\u7684\u72b6\u6001\u8f6c\u6362\u903b\u8f91\u65f6&#xff0c;\u5982\u534f\u8bae\u89e3\u6790\u3001\u6e38\u620f AI \u72b6\u6001\u7ba1\u7406\u3002\u6bcf\u4e2a\u72b6\u6001\u53ef\u4ee5\u5bf9\u5e94\u4e00\u4e2a\u5904\u7406\u51fd\u6570&#xff08;\u72b6\u6001\u5904\u7406\u51fd\u6570&#xff09;&#xff0c;\u72b6\u6001\u8f6c\u6362\u65f6\u6539\u53d8\u5f53\u524d\u6307\u5411\u7684\u51fd\u6570\u6307\u9488\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u72b6\u6001\u5904\u7406\u51fd\u6570\u7c7b\u578b<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>StateHandler<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u72b6\u6001\u5904\u7406\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">state_idle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;State: Idle. Waiting for input&#8230;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ &#8230; \u6839\u636e\u6761\u4ef6\u53ef\u80fd\u8f6c\u6362\u5230\u5176\u4ed6\u72b6\u6001<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">state_processing<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;State: Processing. Doing work&#8230;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ &#8230; \u6839\u636e\u6761\u4ef6\u53ef\u80fd\u8f6c\u6362\u5230\u5176\u4ed6\u72b6\u6001<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">state_finished<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;State: Finished. Task completed.\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ &#8230; \u53ef\u80fd\u8f6c\u6362\u56deIdle\u6216\u5176\u4ed6<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    StateHandler currentState <span class=\"token operator\">&#061;<\/span> state_idle<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u521d\u59cb\u72b6\u6001<\/span><\/p>\n<p>    <span class=\"token keyword\">int<\/span> input<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">do<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u6267\u884c\u5f53\u524d\u72b6\u6001\u7684\u5904\u7406\u51fd\u6570<\/span><br \/>\n        <span class=\"token function\">currentState<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6a21\u62df\u5916\u90e8\u8f93\u5165\u6216\u4e8b\u4ef6\u5f71\u54cd\u72b6\u6001\u8f6c\u6362 (\u7b80\u5316)<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Enter (1: process, 2: finish, 0: exit): &#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">scanf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>input<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u6839\u636e\u8f93\u5165\u8f6c\u6362\u72b6\u6001 (\u8fd9\u91cc\u903b\u8f91\u5f88\u7b80\u5355)<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>input <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            currentState <span class=\"token operator\">&#061;<\/span> state_processing<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>input <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            currentState <span class=\"token operator\">&#061;<\/span> state_finished<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>input <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9000\u51fa<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5176\u4ed6\u8f93\u5165\u4fdd\u6301\u5f53\u524d\u72b6\u6001\u6216\u6839\u636e\u5b9e\u9645\u9700\u6c42\u8f6c\u6362<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bf4\u660e&#xff1a; \u53d8\u91cf currentState \u662f\u4e00\u4e2a\u51fd\u6570\u6307\u9488&#xff0c;\u6307\u5411\u5f53\u524d\u72b6\u6001\u7684\u5904\u7406\u51fd\u6570\u3002\u4e3b\u5faa\u73af\u4e2d\u4e0d\u65ad\u8c03\u7528 currentState() \u6765\u6267\u884c\u5f53\u524d\u72b6\u6001\u7684\u884c\u4e3a\u3002\u6839\u636e\u8f93\u5165&#xff08;\u6a21\u62df\u4e8b\u4ef6&#xff09;&#xff0c;\u7a0b\u5e8f\u6539\u53d8 currentState \u7684\u503c&#xff0c;\u4f7f\u5176\u6307\u5411\u4e0b\u4e00\u4e2a\u72b6\u6001\u7684\u5904\u7406\u51fd\u6570&#xff0c;\u4ece\u800c\u5b9e\u73b0\u4e86\u72b6\u6001\u7684\u8fc1\u79fb\u3002<\/p>\n<h2>6\u3001\u7ebf\u7a0b\u521b\u5efa (Thread Creation)<\/h2>\n<p>\u5e94\u7528\u573a\u666f&#xff1a; \u5728 POSIX \u7ebf\u7a0b&#xff08;pthread&#xff09;\u5e93\u4e2d&#xff0c;\u521b\u5efa\u65b0\u7ebf\u7a0b\u65f6\u9700\u8981\u6307\u5b9a\u7ebf\u7a0b\u542f\u52a8\u540e\u6267\u884c\u7684\u51fd\u6570&#xff0c;\u8fd9\u6b63\u662f\u901a\u8fc7\u51fd\u6570\u6307\u9488\u5b9e\u73b0\u7684\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;pthread.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7ebf\u7a0b\u51fd\u6570\u7c7b\u578b (\u7b26\u5408pthread_create\u8981\u6c42\u7684\u7b7e\u540d)<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>ThreadFunc<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7ebf\u7a0b\u6267\u884c\u7684\u4efb\u52a1\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> <span class=\"token function\">thread_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token operator\">*<\/span> arg<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span> counter <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>arg<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>counter<span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Thread counter: %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">*<\/span>counter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">pthread_t<\/span> thread_id<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> shared_counter <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u521b\u5efa\u7ebf\u7a0b&#xff0c;\u4f20\u9012\u51fd\u6570\u6307\u9488 thread_task<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">pthread_create<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>thread_id<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">,<\/span> thread_task<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>shared_counter<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Failed to create thread&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u4e3b\u7ebf\u7a0b\u4e5f\u64cd\u4f5c\u8ba1\u6570\u5668<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        shared_counter <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Main counter: %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> shared_counter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f<\/span><br \/>\n    <span class=\"token function\">pthread_join<\/span><span class=\"token punctuation\">(<\/span>thread_id<span class=\"token punctuation\">,<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Final counter value: %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> shared_counter<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bf4\u660e&#xff1a; pthread_create 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\u5b9e\u73b0\u5e93\/\u6846\u67b6\u4e0e\u7528\u6237\u4ee3\u7801\u7684\u4ea4\u4e92\u3002<\/li>\n<li>\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b&#xff1a; \u6ce8\u518c\u548c\u8c03\u7528\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u3002<\/li>\n<li>\u52a8\u6001\u51fd\u6570\u9009\u62e9&#xff1a; \u901a\u8fc7\u51fd\u6570\u8868\u5728\u8fd0\u884c\u65f6\u9009\u62e9\u51fd\u6570\u3002<\/li>\n<li>\u7b56\u7565\u6a21\u5f0f\u5b9e\u73b0&#xff1a; \u5c01\u88c5\u53ef\u4e92\u6362\u7684\u7b97\u6cd5\u6216\u884c\u4e3a\u3002<\/li>\n<li>\u72b6\u6001\u673a\u5b9e\u73b0&#xff1a; \u7ba1\u7406\u72b6\u6001\u548c\u72b6\u6001\u8f6c\u6362\u903b\u8f91\u3002<\/li>\n<li>\u7ebf\u7a0b\u5165\u53e3\u70b9\u6307\u5b9a&#xff1a; \u521b\u5efa\u7ebf\u7a0b\u65f6\u6307\u5b9a\u5176\u6267\u884c\u51fd\u6570\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260113232544-6966d47861b7d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" 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\u8fd9\u662f\u51fd\u6570\u6307\u9488\u6700\u7ecf\u5178\u7684\u5e94\u7528\u3002\u5141\u8bb8\u4e00\u4e2a\u51fd\u6570&#xff08;\u901a\u5e38\u662f\u5e93\u51fd\u6570\u6216\u6846<\/p>\n","protected":false},"author":2,"featured_media":59580,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,174,99],"topic":[],"class_list":{"0":"post-59582","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-server","8":"tag-c","10":"tag-java"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\/C++ \u51fd\u6570\u6307\u9488\u5e94\u7528\u573a\u666f\u8be6\u89e3 - \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\" 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