{"id":83378,"date":"2026-07-25T20:51:01","date_gmt":"2026-07-25T12:51:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/83378.html"},"modified":"2026-07-25T20:51:01","modified_gmt":"2026-07-25T12:51:01","slug":"%e3%80%90c%e3%80%91%e6%a8%a1%e6%9d%bf","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/83378.html","title":{"rendered":"\u3010C++\u3011\u6a21\u677f"},"content":{"rendered":"<\/p>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>1. \u6cdb\u578b\u7f16\u7a0b<\/li>\n<li>2. \u51fd\u6570\u6a21\u677f<\/li>\n<li>\n<ul>\n<li>2.1 \u6982\u5ff5\u4e0e\u8bed\u6cd5<\/li>\n<li>2.2 \u6a21\u677f\u7684\u5b9e\u4f8b\u5316<\/li>\n<li>2.3 \u6a21\u677f\u53c2\u6570\u7684\u5339\u914d\u539f\u5219<\/li>\n<\/ul>\n<\/li>\n<li>3. \u7c7b\u6a21\u677f<\/li>\n<li>\n<ul>\n<li>3.1 \u6982\u5ff5\u4e0e\u8bed\u6cd5<\/li>\n<li>3.2 \u8865\u5145&#xff1a;typename \u7684\u7279\u6b8a\u7528\u6cd5<\/li>\n<\/ul>\n<\/li>\n<li>4. \u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570<\/li>\n<li>5. \u6a21\u677f\u7684\u7279\u5316<\/li>\n<li>\n<ul>\n<li>5.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u7279\u5316&#xff1f;<\/li>\n<li>5.2 \u51fd\u6570\u6a21\u677f\u7279\u5316 vs \u666e\u901a\u51fd\u6570\u91cd\u8f7d<\/li>\n<li>5.3 \u7c7b\u6a21\u677f\u7279\u5316<\/li>\n<li>\n<ul>\n<li>5.3.1 \u5168\u7279\u5316<\/li>\n<li>5.3.2 \u504f\u7279\u5316&#xff08;\u534a\u7279\u5316&#xff09;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>6. \u6a21\u677f\u7684\u5206\u79bb\u7f16\u8bd1<\/li>\n<li>\n<ul>\n<li>6.1 \u4ec0\u4e48\u662f\u5206\u79bb\u7f16\u8bd1&#xff1f;<\/li>\n<li>6.2 \u6a21\u677f\u5bfc\u81f4\u5206\u79bb\u7f16\u8bd1\u94fe\u63a5\u5931\u8d25\u7684\u539f\u56e0<\/li>\n<li>6.3 \u89e3\u51b3\u65b9\u6cd5<\/li>\n<\/ul>\n<\/li>\n<li>7. \u603b\u7ed3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>1. \u6cdb\u578b\u7f16\u7a0b<\/h3>\n<p>\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u5982\u679c\u9700\u8981\u5b9e\u73b0\u4e00\u4e2a\u901a\u7528\u7684\u4ea4\u6362\u51fd\u6570&#xff0c;\u4f7f\u7528\u51fd\u6570\u91cd\u8f7d\u867d\u7136\u53ef\u4ee5\u5b9e\u73b0&#xff0c;\u4f46\u5b58\u5728\u660e\u663e\u7684\u7f3a\u9677&#xff1a;\u91cd\u8f7d\u7684\u51fd\u6570\u4ec5\u4ec5\u662f\u7c7b\u578b\u4e0d\u540c&#xff0c;\u4ee3\u7801\u590d\u7528\u7387\u6bd4\u8f83\u4f4e&#xff1b;\u53ea\u8981\u6709\u65b0\u7c7b\u578b\u51fa\u73b0\u65f6&#xff0c;\u5c31\u9700\u8981\u7528\u6237\u81ea\u5df1\u589e\u52a0\u5bf9\u5e94\u7684\u51fd\u6570&#xff1b;\u5e76\u4e14\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u6bd4\u8f83\u4f4e&#xff0c;\u4e00\u4e2a\u51fa\u9519\u53ef\u80fd\u6240\u6709\u7684\u91cd\u8f7d\u5747\u51fa\u9519\u3002<\/p>\n<p>\u6cdb\u578b\u7f16\u7a0b\u5c31\u662f\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u800c\u4ea7\u751f\u7684\u3002\u6cdb\u578b\u7f16\u7a0b\u662f\u6307\u7f16\u5199\u4e0e\u7c7b\u578b\u65e0\u5173\u7684\u901a\u7528\u4ee3\u7801&#xff0c;\u5b83\u662f\u4ee3\u7801\u590d\u7528\u7684\u4e00\u79cd\u624b\u6bb5\u3002\u6a21\u677f\u662f\u6cdb\u578b\u7f16\u7a0b\u7684\u57fa\u7840\u3002<\/p>\n<p>\u53ef\u4ee5\u628a\u6a21\u677f\u60f3\u8c61\u6210\u4e00\u4e2a\u6a21\u5177&#xff0c;\u5728 C&#043;&#043; \u4e2d&#xff0c;\u901a\u8fc7\u7ed9\u8fd9\u4e2a\u6a21\u5177\u586b\u5145\u4e0d\u540c\u7684\u6750\u6599&#xff08;\u6570\u636e\u7c7b\u578b&#xff09;&#xff0c;\u5c31\u80fd\u83b7\u5f97\u4e0d\u540c\u6750\u6599\u7684\u94f8\u4ef6&#xff08;\u5373\u751f\u6210\u5177\u4f53\u7c7b\u578b\u7684\u4ee3\u7801&#xff09;&#xff0c;\u4ece\u800c\u5c06\u91cd\u590d\u7684\u5de5\u4f5c\u4ea4\u7ed9\u4e86\u7f16\u8bd1\u5668\u53bb\u5b8c\u6210\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725125058-6a64b1324beda.png\" alt=\"image-20260721161410079\" \/><\/p>\n<h3>2. \u51fd\u6570\u6a21\u677f<\/h3>\n<h4>2.1 \u6982\u5ff5\u4e0e\u8bed\u6cd5<\/h4>\n<p>\u51fd\u6570\u6a21\u677f\u4ee3\u8868\u4e86\u4e00\u4e2a\u51fd\u6570\u5bb6\u65cf&#xff0c;\u8be5\u51fd\u6570\u6a21\u677f\u4e0e\u7c7b\u578b\u65e0\u5173&#xff0c;\u5728\u4f7f\u7528\u65f6\u88ab\u53c2\u6570\u5316&#xff0c;\u7f16\u8bd1\u5668\u4f1a\u6839\u636e\u5b9e\u53c2\u7c7b\u578b\u4ea7\u751f\u51fd\u6570\u7684\u7279\u5b9a\u7c7b\u578b\u7248\u672c\u3002<\/p>\n<p>\u5b9a\u4e49\u683c\u5f0f&#xff1a;<\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">Tn<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n\u8fd4\u56de\u503c\u7c7b\u578b \u51fd\u6570\u540d<span class=\"token punctuation\">(<\/span>\u53c2\u6570\u5217\u8868<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;typename \u662f\u7528\u6765\u5b9a\u4e49\u6a21\u677f\u53c2\u6570\u7684\u5173\u952e\u5b57&#xff0c;\u4e5f\u53ef\u4ee5\u4f7f\u7528 class&#xff0c;\u4f46\u5207\u8bb0\u4e0d\u80fd\u4f7f\u7528 struct \u4ee3\u66ff\u3002<\/p>\n<p>\u4ee3\u7801\u793a\u4f8b&#xff1a;<\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">Swap<\/span><span class=\"token punctuation\">(<\/span>T<span class=\"token operator\">&amp;<\/span> left<span class=\"token punctuation\">,<\/span> T<span class=\"token operator\">&amp;<\/span> right<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    T temp <span class=\"token operator\">&#061;<\/span> left<span class=\"token punctuation\">;<\/span><br \/>\n    left <span class=\"token operator\">&#061;<\/span> right<span class=\"token punctuation\">;<\/span><br \/>\n    right <span class=\"token operator\">&#061;<\/span> temp<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u539f\u7406&#xff1a;\u51fd\u6570\u6a21\u677f\u672c\u8eab\u5e76\u4e0d\u662f\u51fd\u6570&#xff0c;\u800c\u662f\u7f16\u8bd1\u5668\u4ea7\u751f\u7279\u5b9a\u5177\u4f53\u7c7b\u578b\u51fd\u6570\u7684\u6a21\u5177\u3002\u5728\u7f16\u8bd1\u9636\u6bb5&#xff0c;\u7f16\u8bd1\u5668\u6839\u636e\u4f20\u5165\u7684\u5b9e\u53c2\u7c7b\u578b\u63a8\u6f14\u751f\u6210\u5bf9\u5e94\u7c7b\u578b\u7684\u51fd\u6570\u4ee5\u4f9b\u8c03\u7528\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725125059-6a64b13318758.png\" alt=\"image-20260721162202228\" \/><\/p>\n<h4>2.2 \u6a21\u677f\u7684\u5b9e\u4f8b\u5316<\/h4>\n<p>\u7528\u4e0d\u540c\u7c7b\u578b\u7684\u53c2\u6570\u4f7f\u7528\u51fd\u6570\u6a21\u677f\u65f6&#xff0c;\u79f0\u4e3a\u51fd\u6570\u6a21\u677f\u7684\u5b9e\u4f8b\u5316&#xff0c;\u5206\u4e3a\u9690\u5f0f\u5b9e\u4f8b\u5316\u548c\u663e\u5f0f\u5b9e\u4f8b\u5316\u3002<\/p>\n<ul>\n<li>\u9690\u5f0f\u5b9e\u4f8b\u5316&#xff1a;\u8ba9\u7f16\u8bd1\u5668\u6839\u636e\u5b9e\u53c2\u63a8\u6f14\u6a21\u677f\u53c2\u6570\u7684\u5b9e\u9645\u7c7b\u578b\u3002<\/li>\n<li>\u663e\u5f0f\u5b9e\u4f8b\u5316&#xff1a;\u5728\u51fd\u6570\u540d\u540e\u7684 &lt;&gt; \u4e2d\u6307\u5b9a\u6a21\u677f\u53c2\u6570\u7684\u5b9e\u9645\u7c7b\u578b\u3002\u5982\u679c\u7c7b\u578b\u4e0d\u5339\u914d&#xff0c;\u7f16\u8bd1\u5668\u4f1a\u5c1d\u8bd5\u8fdb\u884c\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362&#xff0c;\u5982\u679c\u65e0\u6cd5\u8f6c\u6362\u6210\u529f\u7f16\u8bd1\u5668\u5c06\u4f1a\u62a5\u9519\u3002<\/li>\n<\/ul>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\nT <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> left<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> right<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;T Add(const T&amp; left, const T&amp; right)&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> left <span class=\"token operator\">&#043;<\/span> right<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><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> a1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> a2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">double<\/span> d1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10.1<\/span><span class=\"token punctuation\">,<\/span> d2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20.2<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span>a1<span class=\"token punctuation\">,<\/span> a2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9690\u5f0f\u5b9e\u4f8b\u5316&#xff0c;\u63a8\u6f14 T \u4e3a int<\/span><br \/>\n    <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span>d1<span class=\"token punctuation\">,<\/span> d2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u9690\u5f0f\u5b9e\u4f8b\u5316&#xff0c;\u63a8\u6f14 T \u4e3a double<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5f53\u53c2\u6570\u7c7b\u578b\u4e0d\u4e00\u81f4\u65f6&#xff0c;\u76f4\u63a5\u8c03\u7528\u4f1a\u62a5\u9519&#xff0c;\u56e0\u4e3a\u7f16\u8bd1\u5668\u65e0\u6cd5\u786e\u5b9a T \u662f int \u8fd8\u662f double\u3002<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5904\u7406\u65b9\u5f0f 1&#xff1a;\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span>a1<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">)<\/span>d2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">)<\/span>a1<span class=\"token punctuation\">,<\/span> d2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5904\u7406\u65b9\u5f0f 2&#xff1a;\u663e\u5f0f\u5b9e\u4f8b\u5316&#xff0c;\u4e0d\u518d\u8ba9\u7f16\u8bd1\u5668\u53bb\u63a8\u6f14\u53c2\u6570<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token generic-function\"><span class=\"token function\">Add<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>a1<span class=\"token punctuation\">,<\/span> d2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<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<h4>2.3 \u6a21\u677f\u53c2\u6570\u7684\u5339\u914d\u539f\u5219<\/h4>\n<li>\u4e00\u4e2a\u975e\u6a21\u677f\u51fd\u6570\u53ef\u4ee5\u548c\u4e00\u4e2a\u540c\u540d\u7684\u51fd\u6570\u6a21\u677f\u540c\u65f6\u5b58\u5728&#xff0c;\u800c\u4e14\u8be5\u51fd\u6570\u6a21\u677f\u8fd8\u53ef\u4ee5\u88ab\u5b9e\u4f8b\u5316\u4e3a\u8fd9\u4e2a\u975e\u6a21\u677f\u51fd\u6570\u3002<\/li>\n<li>\u5bf9\u4e8e\u975e\u6a21\u677f\u51fd\u6570\u548c\u540c\u540d\u51fd\u6570\u6a21\u677f&#xff0c;\u5982\u679c\u5176\u4ed6\u6761\u4ef6\u90fd\u76f8\u540c&#xff0c;\u5728\u8c03\u52a8\u65f6\u4f1a\u4f18\u5148\u8c03\u7528\u975e\u6a21\u677f\u51fd\u6570\u800c\u4e0d\u4f1a\u4ece\u8be5\u6a21\u677f\u4ea7\u751f\u51fa\u4e00\u4e2a\u5b9e\u4f8b\u3002\u5982\u679c\u6a21\u677f\u53ef\u4ee5\u4ea7\u751f\u4e00\u4e2a\u5177\u6709\u66f4\u597d\u5339\u914d\u7684\u51fd\u6570&#xff0c;\u90a3\u4e48\u5c06\u9009\u62e9\u6a21\u677f\u3002<\/li>\n<li>\u6a21\u677f\u51fd\u6570\u4e0d\u5141\u8bb8\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362&#xff0c;\u4f46\u666e\u901a\u51fd\u6570\u53ef\u4ee5\u8fdb\u884c\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362\u3002<\/li>\n<p><span class=\"token comment\">\/\/ \u4e13\u95e8\u5904\u7406 int \u7684\u666e\u901a\u52a0\u6cd5\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> left<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> right<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;int Add(int left, int right)&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> left <span class=\"token operator\">&#043;<\/span> right<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u901a\u7528\u52a0\u6cd5\u51fd\u6570\u6a21\u677f<\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T2<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">auto<\/span> <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span>T1 left<span class=\"token punctuation\">,<\/span> T2 right<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;auto Add(T1 left, T2 right)&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> left <span class=\"token operator\">&#043;<\/span> right<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><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u4f18\u5148\u5339\u914d\u666e\u901a\u51fd\u6570&#xff0c;\u4e0d\u9700\u8981\u51fd\u6570\u6a21\u677f\u5b9e\u4f8b\u5316<\/span><br \/>\n    <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1.1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2.2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6a21\u677f\u51fd\u6570\u53ef\u4ee5\u751f\u6210\u66f4\u52a0\u5339\u914d\u7684\u7248\u672c&#xff0c;\u7f16\u8bd1\u5668\u751f\u6210 auto Add(double, double)<\/span><br \/>\n    <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/ \u666e\u901a\u51fd\u6570\u9700\u8981\u7c7b\u578b\u8f6c\u6362&#xff0c;\u800c\u6a21\u677f\u80fd\u7cbe\u786e\u5339\u914d&#xff0c;\u8c03\u7528\u6a21\u677f<\/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<h3>3. \u7c7b\u6a21\u677f<\/h3>\n<h4>3.1 \u6982\u5ff5\u4e0e\u8bed\u6cd5<\/h4>\n<p>\u7c7b\u6a21\u677f\u7684\u5b9a\u4e49\u683c\u5f0f\u4e0e\u51fd\u6570\u6a21\u677f\u7c7b\u4f3c&#xff0c;\u4f46\u5b9e\u4f8b\u5316\u65b9\u5f0f\u6709\u6240\u4e0d\u540c\u3002\u7c7b\u6a21\u677f\u5b9e\u4f8b\u5316\u9700\u8981\u5728\u7c7b\u6a21\u677f\u540d\u5b57\u540e\u8ddf &lt;&gt;&#xff0c;\u7136\u540e\u5c06\u5b9e\u4f8b\u5316\u7684\u7c7b\u578b\u653e\u5728\u5176\u4e2d\u3002\u7c7b\u6a21\u677f\u540d\u5b57\u4e0d\u662f\u771f\u6b63\u7684\u7c7b&#xff0c;\u5b9e\u4f8b\u5316\u7684\u7ed3\u679c\u624d\u662f\u771f\u6b63\u7684\u7c7b\u3002<\/p>\n<p>\u4ee3\u7801\u793a\u4f8b&#xff1a;\u52a8\u6001\u987a\u5e8f\u6808\u5b9e\u73b0<\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Stack<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Stack<\/span><span class=\"token punctuation\">(<\/span>size_t capacity <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        _array <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>T<span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token function\">malloc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>T<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> capacity<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 keyword\">nullptr<\/span> <span class=\"token operator\">&#061;&#061;<\/span> _array<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token function\">perror<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;malloc\u7533\u8bf7\u7a7a\u95f4\u5931\u8d25&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        _capacity <span class=\"token operator\">&#061;<\/span> capacity<span class=\"token punctuation\">;<\/span><br \/>\n        _size <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><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\">Push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    T<span class=\"token operator\">*<\/span> _array<span class=\"token punctuation\">;<\/span><br \/>\n    size_t _capacity<span class=\"token punctuation\">;<\/span><br \/>\n    size_t _size<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6a21\u677f\u4e0d\u5efa\u8bae\u58f0\u660e\u548c\u5b9a\u4e49\u5206\u79bb\u5230 .h \u548c .cpp&#xff0c;\u4f1a\u51fa\u73b0\u94fe\u63a5\u9519\u8bef\u3002\u8981\u5206\u79bb\u4e5f\u5efa\u8bae\u90fd\u5728 .h \u4e2d\u3002<\/span><br \/>\n<span class=\"token comment\">\/\/ \u7c7b\u6a21\u677f\u4e2d\u51fd\u6570\u653e\u5728\u7c7b\u5916\u8fdb\u884c\u5b9a\u4e49\u65f6&#xff0c;\u9700\u8981\u52a0\u6a21\u677f\u53c2\u6570\u5217\u8868<\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Stack<\/span><span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Push<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> data<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    _array<span class=\"token punctuation\">[<\/span>_size<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token operator\">&#043;&#043;<\/span>_size<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><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Stack<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> st1<span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/ Stack \u662f\u7c7b\u6a21\u677f&#xff0c;Stack&lt;int&gt; \u624d\u662f\u771f\u6b63\u7684\u7c7b\u7c7b\u578b<\/span><br \/>\n    Stack<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">double<\/span><span class=\"token operator\">&gt;<\/span> st2<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<h4>3.2 \u8865\u5145&#xff1a;typename \u7684\u7279\u6b8a\u7528\u6cd5<\/h4>\n<p>\u5f53\u5728\u6a21\u677f\u5185\u90e8\u4f7f\u7528\u67d0\u4e9b\u4f9d\u8d56\u4e8e\u6a21\u677f\u53c2\u6570\u7684\u5d4c\u5957\u7c7b\u578b\u65f6&#xff08;\u5982\u8fed\u4ee3\u5668&#xff09;&#xff0c;\u7f16\u8bd1\u5668\u65e0\u6cd5\u786e\u8ba4\u5b83\u662f\u4e00\u4e2a\u9759\u6001\u53d8\u91cf\u8fd8\u662f\u4e00\u4e2a\u7c7b\u578b\u3002\u6b64\u65f6\u9700\u8981\u4f7f\u7528 typename \u660e\u786e\u544a\u77e5\u7f16\u8bd1\u5668\u8fd9\u662f\u4e00\u4e2a\u7c7b\u578b\u3002<\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">PrintVector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> vector<span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&amp;<\/span> v<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u7c7b\u6a21\u677f\u6ca1\u5b9e\u4f8b\u5316\u65f6&#xff0c;\u4e0d\u53bb\u91cc\u9762\u67e5\u7ec6\u8282\u4e1c\u897f&#xff0c;\u65e0\u6cd5\u786e\u8ba4\u65f6\u7c7b\u578b\u8fd8\u662f\u9759\u6001\u53d8\u91cf<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u52a0 typename \u660e\u786e\u544a\u8bc9\u662f\u7c7b\u578b<\/span><br \/>\n    <span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">vector<\/span><span class=\"token operator\">&lt;<\/span>T<span class=\"token operator\">&gt;<\/span><span class=\"token double-colon punctuation\">::<\/span>const_iterator it <span class=\"token operator\">&#061;<\/span> v<span class=\"token punctuation\">.<\/span><span class=\"token function\">begin<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u73b0\u4ee3 C&#043;&#043; \u4e5f\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 auto it &#061; v.begin();<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>it <span class=\"token operator\">!&#061;<\/span> v<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><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token operator\">*<\/span>it <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034; &#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token operator\">&#043;&#043;<\/span>it<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>4. \u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570<\/h3>\n<p>\u6a21\u677f\u53c2\u6570\u5206\u4e3a\u7c7b\u578b\u5f62\u53c2\u4e0e\u975e\u7c7b\u578b\u5f62\u53c2\u3002<\/p>\n<ul>\n<li>\u7c7b\u578b\u5f62\u53c2&#xff1a;\u51fa\u73b0\u5728\u6a21\u677f\u53c2\u6570\u5217\u8868\u4e2d&#xff0c;\u8ddf\u5728 class \u6216\u8005 typename \u4e4b\u7c7b\u7684\u53c2\u6570\u7c7b\u578b\u540d\u79f0\u3002<\/li>\n<li>\u975e\u7c7b\u578b\u5f62\u53c2&#xff1a;\u7528\u4e00\u4e2a\u5e38\u91cf\u4f5c\u4e3a\u7c7b&#xff08;\u6216\u51fd\u6570&#xff09;\u6a21\u677f\u7684\u4e00\u4e2a\u53c2\u6570&#xff0c;\u5728\u7c7b&#xff08;\u6216\u51fd\u6570&#xff09;\u6a21\u677f\u4e2d\u53ef\u5c06\u8be5\u53c2\u6570\u5f53\u6210\u5e38\u91cf\u6765\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u9759\u6001\u7684\u6808&#xff1a;T \u4e3a\u7c7b\u578b\u5f62\u53c2&#xff0c;N \u4e3a\u975e\u7c7b\u578b\u5f62\u53c2<\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token punctuation\">,<\/span> size_t N <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Stack<\/span><br \/>\n<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\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ N \u662f\u5e38\u91cf&#xff0c;\u4e0d\u80fd\u88ab\u4fee\u6539&#xff0c;N&#043;&#043; \u4f1a\u62a5\u9519<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    T _a<span class=\"token punctuation\">[<\/span>N<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> _top<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><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><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Stack<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> st1<span class=\"token punctuation\">;<\/span>        <span class=\"token comment\">\/\/ \u5bb9\u91cf\u4e3a 10<\/span><br \/>\n    Stack<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token operator\">&gt;<\/span>  st2<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u5bb9\u91cf\u4e3a 100<\/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>\u6ce8\u610f&#xff1a;<\/p>\n<li>\u6d6e\u70b9\u6570\u3001\u7c7b\u5bf9\u8c61\u4ee5\u53ca\u5b57\u7b26\u4e32\u662f\u4e0d\u5141\u8bb8\u4f5c\u4e3a\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570\u7684&#xff08;C&#043;&#043;20 \u4e4b\u524d&#xff09;\u3002<\/li>\n<li>\u975e\u7c7b\u578b\u7684\u6a21\u677f\u53c2\u6570\u5fc5\u987b\u5728\u7f16\u8bd1\u671f\u5c31\u80fd\u786e\u8ba4\u7ed3\u679c\u3002<\/li>\n<h3>5. \u6a21\u677f\u7684\u7279\u5316<\/h3>\n<p>\u901a\u5e38\u60c5\u51b5\u4e0b&#xff0c;\u4f7f\u7528\u6a21\u677f\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e9b\u4e0e\u7c7b\u578b\u65e0\u5173\u7684\u4ee3\u7801&#xff0c;\u4f46\u5bf9\u4e8e\u4e00\u4e9b\u7279\u6b8a\u7c7b\u578b\u7684\u53ef\u80fd\u4f1a\u5f97\u5230\u4e00\u4e9b\u9519\u8bef\u7684\u7ed3\u679c&#xff0c;\u9700\u8981\u7279\u6b8a\u5904\u7406\u3002\u6a21\u677f\u7279\u5316\u5373&#xff1a;\u5728\u539f\u6a21\u677f\u7c7b\u7684\u57fa\u7840\u4e0a&#xff0c;\u9488\u5bf9\u7279\u6b8a\u7c7b\u578b\u6240\u8fdb\u884c\u7279\u6b8a\u5316\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n<h4>5.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u7279\u5316&#xff1f;<\/h4>\n<p>\u4ee5\u4e0b\u9762\u7684 Date \u7c7b\u548c Less \u6a21\u677f\u4e3a\u4f8b&#xff0c;\u5982\u679c\u6bd4\u8f83\u7684\u662f\u6307\u9488\u7c7b\u578b&#xff0c;\u6a21\u677f\u4f1a\u6bd4\u8f83\u6307\u9488\u7684\u5730\u5740\u5927\u5c0f&#xff0c;\u800c\u975e\u6307\u9488\u6307\u5411\u7684\u5185\u5bb9\u5927\u5c0f&#xff0c;\u8fd9\u8fdd\u80cc\u4e86\u6211\u4eec\u7684\u672c\u610f\u3002<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Date<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Date<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> year <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1900<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> month <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> day <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token operator\">:<\/span> <span class=\"token function\">_year<\/span><span class=\"token punctuation\">(<\/span>year<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_month<\/span><span class=\"token punctuation\">(<\/span>month<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_day<\/span><span class=\"token punctuation\">(<\/span>day<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">bool<\/span> <span class=\"token keyword\">operator<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> Date<span class=\"token operator\">&amp;<\/span> d<span class=\"token punctuation\">)<\/span><span class=\"token keyword\">const<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/* \u65e5\u671f\u6bd4\u8f83\u903b\u8f91 *\/<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> _year<span class=\"token punctuation\">,<\/span> _month<span class=\"token punctuation\">,<\/span> _day<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">Less<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> left<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> right<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> left <span class=\"token operator\">&lt;<\/span> right<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><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Date <span class=\"token function\">d1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2022<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    Date <span class=\"token function\">d2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2022<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token function\">Less<\/span><span class=\"token punctuation\">(<\/span>d1<span class=\"token punctuation\">,<\/span> d2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6bd4\u8f83\u5bf9\u8c61&#xff0c;\u7ed3\u679c\u6b63\u786e<\/span><\/p>\n<p>    Date<span class=\"token operator\">*<\/span> p1 <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&amp;<\/span>d1<span class=\"token punctuation\">;<\/span><br \/>\n    Date<span class=\"token operator\">*<\/span> p2 <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&amp;<\/span>d2<span class=\"token punctuation\">;<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token function\">Less<\/span><span class=\"token punctuation\">(<\/span>p1<span class=\"token punctuation\">,<\/span> p2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6bd4\u8f83\u6307\u9488\u5730\u5740&#xff0c;\u7ed3\u679c\u9519\u8bef<\/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<h4>5.2 \u51fd\u6570\u6a21\u677f\u7279\u5316 vs \u666e\u901a\u51fd\u6570\u91cd\u8f7d<\/h4>\n<p>\u867d\u7136\u53ef\u4ee5\u5bf9\u51fd\u6570\u6a21\u677f\u8fdb\u884c\u7279\u5316&#xff08;\u901a\u8fc7 template&lt;&gt; \u4e14\u5c16\u62ec\u53f7\u4e2d\u6307\u5b9a\u7279\u5316\u7c7b\u578b&#xff09;&#xff0c;\u4f46\u51fd\u6570\u6a21\u677f\u7684\u7279\u5316\u8981\u6c42\u5f62\u53c2\u5217\u8868\u5fc5\u987b\u548c\u6a21\u677f\u51fd\u6570\u7684\u57fa\u7840\u53c2\u6570\u7c7b\u578b\u5b8c\u5168\u76f8\u540c&#xff0c;\u5426\u5219\u7f16\u8bd1\u5668\u53ef\u80fd\u62a5\u5947\u602a\u7684\u9519\u8bef\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u4e00\u822c\u9047\u5230\u51fd\u6570\u6a21\u677f\u4e0d\u80fd\u5904\u7406\u6216\u5904\u7406\u6709\u8bef\u7684\u7c7b\u578b&#xff0c;\u4e3a\u4e86\u5b9e\u73b0\u7b80\u5355\u901a\u5e38\u90fd\u662f\u76f4\u63a5\u7ed9\u51fa\u4e00\u4e2a\u91cd\u8f7d\u7684\u666e\u901a\u51fd\u6570&#xff0c;\u8fd9\u6837\u4ee3\u7801\u53ef\u8bfb\u6027\u9ad8&#xff0c;\u5bb9\u6613\u4e66\u5199&#xff0c;\u4e0d\u5efa\u8bae\u7279\u5316\u51fd\u6570\u6a21\u677f\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u76f4\u63a5\u91cd\u8f7d\u666e\u901a\u51fd\u6570&#xff0c;\u6bd4\u51fd\u6570\u6a21\u677f\u7279\u5316\u66f4\u597d<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> <span class=\"token function\">Less<\/span><span class=\"token punctuation\">(<\/span>Date<span class=\"token operator\">*<\/span> left<span class=\"token punctuation\">,<\/span> Date<span class=\"token operator\">*<\/span> right<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">*<\/span>left <span class=\"token operator\">&lt;<\/span> <span class=\"token operator\">*<\/span>right<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>5.3 \u7c7b\u6a21\u677f\u7279\u5316<\/h4>\n<p>\u7c7b\u6a21\u677f\u7279\u5316\u5206\u4e3a\u5168\u7279\u5316\u548c\u504f\u7279\u5316\u3002<\/p>\n<h5>5.3.1 \u5168\u7279\u5316<\/h5>\n<p>\u5168\u7279\u5316\u5373\u662f\u5c06\u6a21\u677f\u53c2\u6570\u5217\u8868\u4e2d\u6240\u6709\u7684\u53c2\u6570\u90fd\u786e\u5b9a\u5316\u3002<\/p>\n<p><span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T2<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Data<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Data&lt;T1, T2&gt;-\u539f\u6a21\u677f&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5168\u7279\u5316&#xff1a;\u9488\u5bf9\u5177\u4f53\u7684 int \u548c char<\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Data<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Data&lt;int, char&gt;- \u5168\u7279\u5316&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>5.3.2 \u504f\u7279\u5316&#xff08;\u534a\u7279\u5316&#xff09;<\/h5>\n<p>\u504f\u7279\u5316\u662f\u4efb\u4f55\u9488\u5bf9\u6a21\u677f\u53c2\u6570\u8fdb\u4e00\u6b65\u8fdb\u884c\u6761\u4ef6\u9650\u5236\u8bbe\u8ba1\u7684\u7279\u5316\u7248\u672c\u3002\u8868\u73b0\u4e3a\u4e24\u79cd\u5f62\u5f0f&#xff1a;<\/p>\n<li>\u90e8\u5206\u7279\u5316&#xff1a;\u5c06\u6a21\u677f\u53c2\u6570\u7c7b\u8868\u4e2d\u7684\u4e00\u90e8\u5206\u53c2\u6570\u7279\u5316\u3002<\/li>\n<li>\u53c2\u6570\u66f4\u8fdb\u4e00\u6b65\u7684\u9650\u5236&#xff1a;\u9488\u5bf9\u6a21\u677f\u53c2\u6570\u66f4\u8fdb\u4e00\u6b65\u7684\u6761\u4ef6\u9650\u5236&#xff08;\u5982\u9650\u5b9a\u4e3a\u6307\u9488\u6216\u5f15\u7528&#xff09;\u3002<\/li>\n<p><span class=\"token comment\">\/\/ 1. \u90e8\u5206\u7279\u5316&#xff1a;\u5c06\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7279\u5316\u4e3a int<\/span><br \/>\n<span class=\"token keyword\">template<\/span> <span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T1<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Data<\/span><span class=\"token operator\">&lt;<\/span>T1<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Data&lt;T1, int&gt;-\u504f\u7279\u5316&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 2. \u53c2\u6570\u8fdb\u4e00\u6b65\u9650\u5236&#xff1a;\u9650\u5b9a\u6a21\u677f\u7684\u7c7b\u578b\u4e3a\u6307\u9488<\/span><br \/>\n<span class=\"token keyword\">template<\/span> <span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T2<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Data<\/span> <span class=\"token operator\">&lt;<\/span>T1<span class=\"token operator\">*<\/span><span class=\"token punctuation\">,<\/span> T2<span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Data&lt;T1*, T2*&gt;-\u504f\u7279\u5316&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 2. \u53c2\u6570\u8fdb\u4e00\u6b65\u9650\u5236&#xff1a;\u9650\u5b9a\u6a21\u677f\u7684\u7c7b\u578b\u4e3a\u5f15\u7528<\/span><br \/>\n<span class=\"token keyword\">template<\/span> <span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">typename<\/span> <span class=\"token class-name\">T2<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Data<\/span> <span class=\"token operator\">&lt;<\/span>T1<span class=\"token operator\">&amp;<\/span><span class=\"token punctuation\">,<\/span> T2<span class=\"token operator\">&amp;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">Data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Data&lt;T1&amp;, T2&amp;&gt;&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><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><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    Data<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> d1<span class=\"token punctuation\">;<\/span>       <span class=\"token comment\">\/\/ \u8c03\u7528\u57fa\u7840\u6a21\u677f<\/span><br \/>\n    Data<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">&gt;<\/span> d2<span class=\"token punctuation\">;<\/span>      <span class=\"token comment\">\/\/ \u8c03\u7528\u5168\u7279\u5316<\/span><br \/>\n    Data<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">double<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">&gt;<\/span> d3<span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/ \u8c03\u7528\u90e8\u5206\u7279\u5316 (T1, int)<\/span><br \/>\n    Data<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span><span class=\"token operator\">*<\/span><span class=\"token operator\">&gt;<\/span> d4<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u8c03\u7528\u6307\u9488\u504f\u7279\u5316<\/span><br \/>\n    Data<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">int<\/span><span class=\"token operator\">&amp;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span><span class=\"token operator\">&amp;<\/span><span class=\"token operator\">&gt;<\/span> d6<span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ \u8c03\u7528\u5f15\u7528\u504f\u7279\u5316<\/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<h3>6. \u6a21\u677f\u7684\u5206\u79bb\u7f16\u8bd1<\/h3>\n<h4>6.1 \u4ec0\u4e48\u662f\u5206\u79bb\u7f16\u8bd1&#xff1f;<\/h4>\n<p>\u4e00\u4e2a\u7a0b\u5e8f&#xff08;\u9879\u76ee&#xff09;\u7531\u82e5\u5e72\u4e2a\u6e90\u6587\u4ef6\u5171\u540c\u5b9e\u73b0&#xff0c;\u800c\u6bcf\u4e2a\u6e90\u6587\u4ef6\u5355\u72ec\u7f16\u8bd1\u751f\u6210\u76ee\u6807\u6587\u4ef6&#xff0c;\u6700\u540e\u5c06\u6240\u6709\u76ee\u6807\u6587\u4ef6\u94fe\u63a5\u8d77\u6765\u5f62\u6210\u5355\u4e00\u7684\u53ef\u6267\u884c\u6587\u4ef6\u7684\u8fc7\u7a0b\u79f0\u4e3a\u5206\u79bb\u7f16\u8bd1\u6a21\u5f0f\u3002<\/p>\n<h4>6.2 \u6a21\u677f\u5bfc\u81f4\u5206\u79bb\u7f16\u8bd1\u94fe\u63a5\u5931\u8d25\u7684\u539f\u56e0<\/h4>\n<p>\u5982\u679c\u5c06\u6a21\u677f\u7684\u58f0\u660e\u653e\u5728 a.h&#xff0c;\u5b9a\u4e49\u653e\u5728 a.cpp&#xff0c;\u5e76\u5728 main.cpp \u4e2d\u8c03\u7528\u8be5\u6a21\u677f\u3002 C\/C&#043;&#043; \u7a0b\u5e8f\u7f16\u8bd1\u6d41\u7a0b\u4e3a&#xff1a;\u9884\u5904\u7406 -&gt; \u7f16\u8bd1 -&gt; \u6c47\u7f16 -&gt; \u94fe\u63a5\u3002 \u7f16\u8bd1\u5668\u5bf9\u5de5\u7a0b\u4e2d\u7684\u591a\u4e2a\u6e90\u6587\u4ef6\u662f\u5206\u79bb\u5f00\u5355\u72ec\u7f16\u8bd1\u7684\u3002\u5728\u7f16\u8bd1 a.cpp \u65f6&#xff0c;\u7f16\u8bd1\u5668\u6ca1\u6709\u770b\u5230\u5bf9\u6a21\u677f\u51fd\u6570\u7684\u5b9e\u4f8b\u5316&#xff0c;\u56e0\u6b64\u4e0d\u4f1a\u751f\u6210\u5177\u4f53\u7684\u51fd\u6570\u4ee3\u7801\u3002\u800c\u5728 main.obj \u4e2d\u8c03\u7528\u4e86\u8be5\u51fd\u6570&#xff0c;\u94fe\u63a5\u5668\u5728\u94fe\u63a5\u65f6\u53bb\u5bfb\u627e\u5176\u5730\u5740&#xff0c;\u53d1\u73b0\u627e\u4e0d\u5230&#xff0c;\u4ece\u800c\u5f15\u53d1\u65e0\u6cd5\u89e3\u6790\u7684\u5916\u90e8\u7b26\u53f7\u94fe\u63a5\u62a5\u9519\u3002<\/p>\n<p><span class=\"token comment\">\/\/a.h<\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token comment\">\/\/ \u6a21\u677f\u7684\u58f0\u660e<\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\nT <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> left<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> right<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/a.cpp<\/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\">&#034;a.h&#034;<\/span><\/span><br \/>\n<span class=\"token comment\">\/\/ \u6a21\u677f\u7684\u5b9a\u4e49<\/span><br \/>\n<span class=\"token keyword\">template<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">T<\/span><span class=\"token operator\">&gt;<\/span><br \/>\nT <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> left<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> T<span class=\"token operator\">&amp;<\/span> right<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> left <span class=\"token operator\">&#043;<\/span> right<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/main.cpp<\/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;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\">&#034;a.h&#034;<\/span><\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token keyword\">namespace<\/span> std<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u7f16\u8bd1\u65f6\u8fd9\u91cc\u4f1a\u89e6\u53d1\u201c\u65e0\u6cd5\u89e3\u6790\u7684\u5916\u90e8\u7b26\u53f7\u201d (Unresolved external symbol) \u7684\u94fe\u63a5\u9519\u8bef<\/span><br \/>\n    cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token function\">Add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<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><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725125059-6a64b1336acc6.png\" alt=\"image-20260721164353854\" \/><\/p>\n<h4>6.3 \u89e3\u51b3\u65b9\u6cd5<\/h4>\n<li>\u63a8\u8350\u505a\u6cd5&#xff1a;\u5c06\u58f0\u660e\u548c\u5b9a\u4e49\u653e\u5230\u4e00\u4e2a\u6587\u4ef6 &#034;xxx.hpp&#034; \u91cc\u9762&#xff0c;\u6216\u8005\u76f4\u63a5\u5199\u5728 .h \u4e2d\u3002<\/li>\n<li>\u4e0d\u63a8\u8350\u505a\u6cd5&#xff1a;\u5728\u6a21\u677f\u5b9a\u4e49\u7684\u4f4d\u7f6e\u8fdb\u884c\u663e\u5f0f\u5b9e\u4f8b\u5316\u3002\u8fd9\u79cd\u65b9\u6cd5\u7f3a\u4e4f\u7075\u6d3b\u6027&#xff0c;\u6781\u4e0d\u5b9e\u7528\u3002<\/li>\n<h3>7. \u603b\u7ed3<\/h3>\n<p>\u3010\u4f18\u70b9\u3011<\/p>\n<li>\u6a21\u677f\u590d\u7528\u4e86\u4ee3\u7801&#xff0c;\u8282\u7701\u8d44\u6e90&#xff0c;\u66f4\u5feb\u7684\u8fed\u4ee3\u5f00\u53d1&#xff0c;C&#043;&#043; \u7684\u6807\u51c6\u6a21\u677f\u5e93 (STL) \u56e0\u6b64\u800c\u4ea7\u751f\u3002<\/li>\n<li>\u589e\u5f3a\u4e86\u4ee3\u7801\u7684\u7075\u6d3b\u6027\u3002<\/li>\n<p>\u3010\u7f3a\u9677\u3011<\/p>\n<li>\u6a21\u677f\u4f1a\u5bfc\u81f4\u4ee3\u7801\u81a8\u80c0\u95ee\u9898&#xff0c;\u4e5f\u4f1a\u5bfc\u81f4\u7f16\u8bd1\u65f6\u95f4\u53d8\u957f\u3002<\/li>\n<li>\u51fa\u73b0\u6a21\u677f\u7f16\u8bd1\u9519\u8bef\u65f6&#xff0c;\u9519\u8bef\u4fe1\u606f\u975e\u5e38\u51cc\u4e71&#xff0c;\u4e0d\u6613\u5b9a\u4f4d\u9519\u8bef\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u5f551. \u6cdb\u578b\u7f16\u7a0b2. \u51fd\u6570\u6a21\u677f2.1 \u6982\u5ff5\u4e0e\u8bed\u6cd52.2 \u6a21\u677f\u7684\u5b9e\u4f8b\u53162.3 \u6a21\u677f\u53c2\u6570\u7684\u5339\u914d\u539f\u52193. \u7c7b\u6a21\u677f3.1 \u6982\u5ff5\u4e0e\u8bed\u6cd53.2 \u8865\u5145&#xff1a;typename \u7684\u7279\u6b8a\u7528\u6cd54. \u975e\u7c7b\u578b\u6a21\u677f\u53c2\u65705. \u6a21\u677f\u7684\u7279\u53165.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u7279\u5316&#xff1f;5.2 \u51fd\u6570\u6a21\u677f\u7279\u5316 vs \u666e\u901a\u51fd\u6570\u91cd\u8f7d5.3 \u7c7b\u6a21\u677f\u7279\u53165.3.1 \u5168\u7279\u53165.3.2 \u504f\u7279\u5316&#xff08;\u534a\u7279\u5316&#xff09;6. \u6a21\u677f\u7684\u5206\u79bb\u7f16\u8bd16.1 \u4ec0\u4e48\u662f\u5206\u79bb\u7f16\u8bd1&#xff1f;6.2 \u6a21\u677f\u5bfc\u81f4\u5206\u79bb\u7f16\u8bd1\u94fe\u63a5\u5931\u8d25\u7684<\/p>\n","protected":false},"author":2,"featured_media":83375,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9098,55,190,176],"topic":[],"class_list":["post-83378","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-it","tag-c","tag-190","tag-176"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010C++\u3011\u6a21\u677f - 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content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/83378.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/83378.html\",\"name\":\"\u3010C++\u3011\u6a21\u677f - 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