{"id":523,"date":"2026-08-15T22:19:53","date_gmt":"2026-08-15T14:19:53","guid":{"rendered":"http:\/\/www.millscience.cn\/?p=523"},"modified":"2026-08-15T22:19:56","modified_gmt":"2026-08-15T14:19:56","slug":"cpplearnday4","status":"publish","type":"post","link":"https:\/\/www.millscience.cn\/index.php\/cpplearnday4\/","title":{"rendered":"c++\u5b66\u4e60day4"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u547d\u540d\u7a7a\u95f4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u540d\u5b57\u7a7a\u95f4\u672c\u8d28\u4e0a\u662f\u81ea\u5b9a\u4e49\u4f5c\u7528\u57df\uff0c\u7531\u4e8eC++\u8bbe\u8ba1\u7684\u521d\u8877\u662f\u5f00\u53d1\u5927\u89c4\u6a21\u8f6f\u4ef6\uff0c\u5927\u91cf\u7684\u8f6f\u4ef6\u5e93\u5fc5\u7136\u4f1a\u52a0\u5267\u5168\u5c40\u7b26\u53f7\uff08\u53d8\u91cf\u3001\u51fd\u6570\uff09\u7684\u51b2\u7a81\uff0c\u56e0\u6b64\u540d\u5b57\u7a7a\u95f4\u6700\u57fa\u672c\u7684\u4f5c\u7528\u5c31\u662f\u7ed9\u4e0d\u540c\u7684\u5e93\u548c\u6a21\u5757\u62e5\u6709\u81ea\u5df1\u7684\u72ec\u7279\u7684\u4f5c\u7528\u57df\uff0c\u5904\u4e8e\u4e0d\u540c\u540d\u5b57\u7a7a\u95f4\u4e2d\u7684\u91cd\u540d\u7b26\u53f7\u76f8\u5b89\u65e0\u4e8b\uff0c\u4e92\u4e0d\u51b2\u7a81\uff0c\u4ee5\u6b64\u6765\u5927\u5927\u63d0\u9ad8\u7f16\u7a0b\u7684\u4fbf\u5229\u6027\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>\/\/ \u5b9a\u4e49\u4e00\u4e2a\u540d\u5b57\u7a7a\u95f4\uff0c\u53ebns\n namespace ns\n {\n\n \/\/ \u5728 ns \u4e2d\u5b9a\u4e49\u53d8\u91cf\n\n int a = 1;\n\n\n \/\/ \u5728 ns \u4e2d\u5b9a\u4e49\u51fd\u6570\n\n float f(int x)\n {\n return x\/2;\n }}<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #6A9955\">\/\/ \u5b9a\u4e49\u4e00\u4e2a\u540d\u5b57\u7a7a\u95f4\uff0c\u53ebns<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">namespace<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">ns<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\"> \/\/ \u5728 ns \u4e2d\u5b9a\u4e49\u53d8\u91cf<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> a = <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\"> \/\/ \u5728 ns \u4e2d\u5b9a\u4e49\u51fd\u6570<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">float<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">f<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #9CDCFE\">x<\/span><span style=\"color: #D4D4D4\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #C586C0\">return<\/span><span style=\"color: #D4D4D4\"> x\/<\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> }}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5934\u6587\u4ef6\u4e2d\u4f7f\u7528<code>extern<\/code>\u5173\u952e\u5b57\u8fdb\u884c\u53d8\u91cf\u548c\u51fd\u6570\u7684\u58f0\u660e<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>namespace ns\n {\n\n \/\/ \u5bf9\u540d\u5b57\u7a7a\u95f4 ns \u4e2d\u7684\u7b26\u53f7\u8fdb\u884c\u58f0\u660e\n\n extern int a;\n\n extern float f(int x); }<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">namespace<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">ns<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\"> \/\/ \u5bf9\u540d\u5b57\u7a7a\u95f4 ns \u4e2d\u7684\u7b26\u53f7\u8fdb\u884c\u58f0\u660e<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">extern<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> a;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">extern<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">float<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">f<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #9CDCFE\">x<\/span><span style=\"color: #D4D4D4\">); }<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u9700\u8981\u8c03\u7528\u7684cpp\u6587\u4ef6\u4e2d\u7528<code>ns::a<\/code>\u6216\u8005<code>ns::f(8)<\/code>\u6765\u8fdb\u884c\u53d8\u91cf\u6216\u8005\u51fd\u6570\u7684\u8c03\u7528\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>\/\/ main.cpp\n #include \"ns.h\"\n \/\/using namespace ns; \u4e5f\u53ef\u4ee5\u4e00\u6b21\u6027\u5168\u90e8\u5bfc\u5165\uff0c\u4e0d\u63a8\u8350\u6b64\u505a\u6cd5\u3002\n\/\/using ns::a; \u53ef\u4ee5\u8fd9\u6837\u5f15\u5165\n int main()\n {\n\n \/\/ \u8c03\u7528\u540d\u5b57\u7a7a\u95f4\u4e2d\u7684\u7b26\u53f7\uff0c\u4f7f\u7528\u5168\u79f0\n\n cout &lt;&lt; ns::a &lt;&lt; endl;\n\n cout &lt;&lt; ns::f(8) &lt;&lt; endl;<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #6A9955\">\/\/ main.cpp<\/span><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\"> <\/span><span style=\"color: #C586C0\">#include<\/span><span style=\"color: #569CD6\"> <\/span><span style=\"color: #CE9178\">&quot;ns.h&quot;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\"> \/\/using namespace ns; \u4e5f\u53ef\u4ee5\u4e00\u6b21\u6027\u5168\u90e8\u5bfc\u5165\uff0c\u4e0d\u63a8\u8350\u6b64\u505a\u6cd5\u3002<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">\/\/using ns::a; \u53ef\u4ee5\u8fd9\u6837\u5f15\u5165<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">main<\/span><span style=\"color: #D4D4D4\">()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\"> \/\/ \u8c03\u7528\u540d\u5b57\u7a7a\u95f4\u4e2d\u7684\u7b26\u53f7\uff0c\u4f7f\u7528\u5168\u79f0<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> cout &lt;&lt; <\/span><span style=\"color: #4EC9B0\">ns<\/span><span style=\"color: #D4D4D4\">::a &lt;&lt; endl;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> cout &lt;&lt; <\/span><span style=\"color: #4EC9B0\">ns<\/span><span style=\"color: #D4D4D4\">::<\/span><span style=\"color: #DCDCAA\">f<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #B5CEA8\">8<\/span><span style=\"color: #D4D4D4\">) &lt;&lt; endl;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8fd9\u4e2a\u53cc\u5192\u53f7\u7684\u64cd\u4f5c\u7b26\uff0c\u79f0\u4e3a\u4f5c\u7528\u57df\u5f15\u7528\u7b26\uff08\u6210\u5458\u5f15\u7528\u7b26 &#8211; \u7c7b\u5bf9\u8c61\uff09\uff0c\u5f88\u663e\u7136\uff0c\u53cc\u5192\u53f7\u524d\u9762\u5fc5\u987b\u662f\u4e00\u4e2a\u4f5c\u7528\u57df\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7531\u4e8e\u5728\u4e0a\u8ff0\u4f8b\u5b50\u4e2d\uff0c\u540d\u5b57\u7a7a\u95f4 ns \u4ec5\u4ec5\u5305\u542b\u6781\u5c11\u91cf\u7b26\u53f7\uff0c\u56e0\u6b64\u4e0d\u7ba1\u91c7\u7528\u54ea\u79cd\u5f62\u5f0f\u7684 using \u8bed\u53e5\u90fd\u6ca1\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u4f46\u5982\u679c\u67d0\u4e2a\u540d\u5b57\u7a7a\u95f4\u5305\u542b\u5927\u91cf\u7b26\u53f7\uff08\u6bd4\u5982\u6807\u51c6\u540d\u5b57\u7a7a\u95f4std\uff09\uff0c\u800c\u7a0b\u5e8f\u4e2d\u4ec5\u9700\u7528\u5230\u5176\u4e2d\u7684\u5c11\u91cf\u7b26\u53f7\uff0c\u90a3\u4e48\u5bfc\u5165\u6574\u4e2a\u540d\u5b57\u7a7a\u95f4\u7684\u6240\u6709\u7b26\u53f7\u7684\u505a\u6cd5\u4e5f\u8bb8\u662f\u4e0d\u660e\u667a\u7684\uff0c\u56e0\u4e3a\u8fd9\u4f1a\u4f7f\u5f97\u5927\u91cf\u672a\u88ab\u4f7f\u7528\u7684<\/strong><br><strong>\u7b26\u53f7\u6210\u4e3a\u6f5c\u5728\u7684\u7b26\u53f7\u51b2\u7a81\u5019\u9009\u4eba\uff0c\u8fd9\u79cd\u60c5\u5f62\u88ab\u79f0\u4e3a\u540d\u5b57\u7a7a\u95f4\u6c61\u67d3\uff0c\u56e0\u6b64\uff0c\u5b9e\u9645\u7f16\u7801\u4e2d\u6211\u4eec\u5e94\u5728\u8ffd\u6c42\u4fbf\u5229\u7684\u540c\u65f6\uff0c\u5c3d\u91cf\u907f\u514d\u5f15\u5165\u4e0d\u4f7f\u7528\u7684\u7b26\u53f7\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C++\u5141\u8bb8\u5d4c\u5957\u5b9a\u4e49\u540d\u5b57\u7a7a\u95f4\uff0c\u5373\u4e00\u4e2a\u540d\u5b57\u7a7a\u95f4\u5185\u90e8\u518d\u51fa\u73b0\u53e6\u4e00\u4e2a\u540d\u5b57\u7a7a\u95f4\uff0c\u8fd9\u5176\u5b9e\u662f\u4f5c\u7528\u57df\u7684\u5e38\u89c4\u7279\u6027\uff0c\u65e9\u5728C\u8bed\u8a00\u65f6\u4ee3\u5c31\u53ef\u4ee5\u6709\u5d4c\u5957\u7684\u4f5c\u7528\u57df\u7684\u6982\u5ff5\uff0c\u53ea\u4e0d\u8fc7C\u8bed\u8a00\u4e2d\u7684\u4f5c\u7528\u57df\u90fd\u662f\u533f\u540d\u7684\uff0c\u800cC++\u7ed9\u8fd9\u4e9b\u4f5c\u7528\u57df\u8d4b\u4e88\u4e86\u7279\u5b9a\u7684\u540d\u5b57\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5f53\u7a0b\u5e8f\u5728\u591a\u5904\u5b9a\u4e49\u4e86\u76f8\u540c\u7684\u540d\u5b57\u7a7a\u95f4\u65f6\uff0c\u5b83\u4eec\u5c06\u4f1a\u878d\u5408\u6210\u4e00\u4e2a\u7edf\u4e00\u7684\u4f5c\u7528\u57df\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5168\u5c40\u4f5c\u7528\u57df\u662f\u4eceC\u8bed\u8a00\u5c31\u5f00\u59cb\u6709\u7684\u4e00\u79cd\u4f5c\u7528\u57df\uff0c\u5728C++\u4e2d\uff0c\u6709\u65f6\u4e3a\u4e86\u5f3a\u8c03\u67d0\u7b26\u53f7\u7684\u5168\u5c40\u7279\u6027\uff0c\u6216\u4e3a<\/strong><br><strong>\u4e86\u907f\u514d\u4e0e\u5bfc\u5165\u7684\u540d\u5b57\u7a7a\u95f4\u4e2d\u7684\u91cd\u540d\u7b26\u53f7\u51b2\u7a81\uff0c\u4f1a\u5728\u4f7f\u7528\u5168\u5c40\u7b26\u53f7\u7684\u65f6\u5019\u52a0\u4e0a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f5c\u7528\u57df\u89e3\u6790\u7b26<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6ce8\u610f\uff1a\u5168\u5c40\u4f5c\u7528\u57df\u7684\u540d\u5b57\u7a7a\u95f4\u662f\u533f\u540d\u7684\uff0c\u5f15\u7528\u5168\u5c40\u4f5c\u7528\u57df\u7b26\u53f7\u53ea\u9700\u52a0 :: \u5373\u53ef\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u540d\u5b57\u7a7a\u95f4\u7684\u672c\u8d28\u5c31\u662f\u4f5c\u7528\u57df\uff0c\u9075\u5b88C\u8bed\u8a00\u5173\u4e8e\u4f5c\u7528\u57df\u7684\u57fa\u672c\u539f\u5219\uff0c\u5982\u5185\u5c42\u4f5c\u7528\u57df\u91cd\u540d\u7b26\u53f7\u4f1a\u63a9\u76d6\u5916\u5c42\u4f5c\u7528\u57df\u7684\u91cd\u540d\u7b26\u53f7\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lambda\u8868\u8fbe\u5f0f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lambda\u51fd\u6570\uff0c\u4ea6\u79f0\u4e3aLambda\u8868\u8fbe\u5f0f\u3001\u533f\u540d\u51fd\u6570\u7b49\uff0c\u662f\u4e00\u79cd\u51fd\u6570\u5bf9\u8c61\uff0cLambda\u51fd\u6570\u53ef\u4ee5\u8ba9\u51fd\u6570\u50cf\u666e\u901a\u53d8\u91cf\u4e00\u6837\u8fdb\u884c\u8d4b\u503c\u3001\u4f20\u9012\u3001\u51fd\u6570\u8fd4\u56de\u7b49\u64cd\u4f5c\u3002C++\u4e2d\u7684Lambda\u51fd\u6570\u7ecf\u5e38\u7528\u6765\u89e3\u51b3\u5982\u4e0b\u95ee\u9898<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f7f\u5f97\u7a0b\u5e8f\u66f4\u52a0\u7b80\u6d01\uff0c\u5c24\u5176\u5bf9\u4e8e\u4e00\u6b21\u6027\u4f7f\u7528\u7684\u51fd\u6570\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6709\u4e9b\u5e93\u51fd\u6570\u8981\u6c42\u4f20\u9012\u7684\u53c2\u6570\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u4f46\u662f\u4f60\u53c8\u4e0d\u60f3\u5199\u4e00\u4e2a\u51fd\u6570\u51fa\u6765\u4f7f\u5f97\u51fd\u6570\u53ef\u4ee5\u81ea\u7531\u6d41\u52a8\uff0c\u5c31\u50cf\u53d8\u91cf\u4e00\u6837\uff0c\u8fd9\u7ed9\u51fd\u6570\u5f0f\u7f16\u7a0b\u6a21\u5f0f\u5960\u5b9a\u4e86\u8bed\u6cd5\u57fa\u7840\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f7f\u5f97\u51fd\u6570\u53ef\u4ee5\u81ea\u7531\u6d41\u52a8\uff0c\u5c31\u50cf\u53d8\u91cf\u4e00\u6837\uff0c\u8fd9\u7ed9\u51fd\u6570\u5f0f\u7f16\u7a0b\u6a21\u5f0f\u5960\u5b9a\u4e86\u8bed\u6cd5\u57fa\u7840\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bed\u4e49\u89c4\u5b9a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>1 &#91;capture list&#93;(params list)mutable exception \u2192 return type{functionbody}<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\"> &#91;capture list&#93;(params list)<\/span><span style=\"color: #569CD6\">mutable<\/span><span style=\"color: #D4D4D4\"> exception \u2192 <\/span><span style=\"color: #C586C0\">return<\/span><span style=\"color: #D4D4D4\"> type{functionbody}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.millscience.cn\/wp-content\/uploads\/2026\/08\/image-20260810132604553.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/www.millscience.cn\/wp-content\/uploads\/2026\/08\/image-20260810132604553.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20260810132604553\"\/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6355\u83b7\u5217\u8868\u662f Lambda \u548c\u666e\u901a\u51fd\u6570\u6700\u5927\u7684\u4e0d\u540c\u70b9\u3002\u5b83\u5141\u8bb8\u4f60\u5728 Lambda \u5185\u90e8\u8bbf\u95ee\u5916\u90e8\u51fd\u6570\u7684\u5c40\u90e8\u53d8\u91cf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>[]<\/code>\uff08\u4e0d\u6355\u83b7\uff09<\/strong>\uff1a\u4e0d\u80fd\u4f7f\u7528\u4efb\u4f55\u5916\u90e8\u5c40\u90e8\u53d8\u91cf\u3002<\/li>\n\n\n\n<li><strong><code>[=]<\/code>\uff08\u6309\u503c\u6355\u83b7\u6240\u6709\uff09<\/strong>\uff1a\u628a\u5916\u90e8\u6240\u6709\u5c40\u90e8\u53d8\u91cf<strong>\u62f7\u8d1d\u4e00\u4efd<\/strong>\u8fdb Lambda \u5185\u90e8\u4f7f\u7528\uff08\u53ea\u8bfb\u526f\u672c\uff09\u3002<\/li>\n\n\n\n<li><strong><code>[&amp;]<\/code>\uff08\u6309\u5f15\u7528\u6355\u83b7\u6240\u6709\uff09<\/strong>\uff1a\u4ee5<strong>\u5f15\u7528<\/strong>\u65b9\u5f0f\u4f7f\u7528\u5916\u90e8\u6240\u6709\u53d8\u91cf\uff08\u5185\u90e8\u4fee\u6539\u4f1a\u76f4\u63a5\u5f71\u54cd\u5916\u90e8\uff01\uff09\u3002<\/li>\n\n\n\n<li><strong><code>[a, &amp;b]<\/code>\uff08\u6df7\u5408\u6355\u83b7\uff09<\/strong>\uff1a\u53d8\u91cf <code>a<\/code> \u6309\u503c\u62f7\u8d1d\uff0c\u53d8\u91cf <code>b<\/code> \u6309\u5f15\u7528\u4f20\u9012\u3002<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>#include &lt;iostream>\n\nint main() {\n    int factor = 2;\n    int sum = 0;\n\n    \/\/ \u6309\u503c\u6355\u83b7 factor\uff0c\u6309\u5f15\u7528\u6355\u83b7 sum\n    auto multiply = &#91;factor, &amp;sum&#93;(int x) {\n        sum += x * factor; \/\/ \u53ef\u4ee5\u4fee\u6539 sum\uff0c\u4f46\u4e0d\u80fd\u4fee\u6539 factor\n    };\n\n    multiply(5); \n    std::cout &lt;&lt; \"sum = \" &lt;&lt; sum &lt;&lt; std::endl; \/\/ \u8f93\u51fa 10\n}<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #C586C0\">#include<\/span><span style=\"color: #569CD6\"> <\/span><span style=\"color: #CE9178\">&lt;iostream&gt;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">main<\/span><span style=\"color: #D4D4D4\">() {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> factor = <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> sum = <\/span><span style=\"color: #B5CEA8\">0<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">    \/\/ \u6309\u503c\u6355\u83b7 factor\uff0c\u6309\u5f15\u7528\u6355\u83b7 sum<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">auto<\/span><span style=\"color: #D4D4D4\"> multiply = &#91;<\/span><span style=\"color: #9CDCFE\">factor<\/span><span style=\"color: #D4D4D4\">, &amp;<\/span><span style=\"color: #9CDCFE\">sum<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #9CDCFE\">x<\/span><span style=\"color: #D4D4D4\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        sum += x * factor;<\/span><span style=\"color: #6A9955\"> \/\/ \u53ef\u4ee5\u4fee\u6539 sum\uff0c\u4f46\u4e0d\u80fd\u4fee\u6539 factor<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    };<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #DCDCAA\">multiply<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #B5CEA8\">5<\/span><span style=\"color: #D4D4D4\">); <\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::cout &lt;&lt; <\/span><span style=\"color: #CE9178\">&quot;sum = &quot;<\/span><span style=\"color: #D4D4D4\"> &lt;&lt; sum &lt;&lt; <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::endl;<\/span><span style=\"color: #6A9955\"> \/\/ \u8f93\u51fa 10<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u5408\u6211\u4eec\u524d\u9762\u804a\u8fc7\u7684\u201c\u7c7b\u548c\u9762\u5411\u5bf9\u8c61\u201d\uff0cLambda \u8868\u8fbe\u5f0f\u5728\u5e95\u5c42\u5176\u5b9e<strong>\u4e00\u70b9\u90fd\u4e0d\u795e\u79d8<\/strong>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u4f60\u5728\u4ee3\u7801\u91cc\u5199\u4e0b\u4e00\u4e2a Lambda \u65f6\uff0c\u7f16\u8bd1\u5668\u5728\u540e\u53f0\u9ed8\u9ed8\u5e2e\u4f60\u505a\u6210\u4e86\u8fd9\u6837\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5077\u5077\u4e3a\u4f60\u751f\u6210\u4e86\u4e00\u4e2a\u533f\u540d\u7684 <strong><code>struct \/ class<\/code><\/strong>\u3002<\/li>\n\n\n\n<li>\u6355\u83b7\u5217\u8868\u91cc\u7684\u53d8\u91cf\uff0c\u53d8\u6210\u4e86\u8fd9\u4e2a\u7c7b\u7684 <strong>\u6210\u5458\u53d8\u91cf<\/strong>\u3002<\/li>\n\n\n\n<li>\u628a\u4f60\u7684 <code>{ \u51fd\u6570\u4f53 }<\/code> \u81ea\u52a8\u91cd\u8f7d\u6210\u4e86\u8fd9\u4e2a\u7c7b\u7684 <strong><code>operator()<\/code> \u8fd0\u7b97\u7b26<\/strong>\uff08\u5373\u4eff\u51fd\u6570\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5\u8bf4\uff0cLambda \u53ea\u662f C++ \u5b98\u65b9\u63d0\u4f9b\u7ed9\u4f60\u7684\u53c8\u4e00\u4e2a<strong>\u8bed\u6cd5\u7cd6<\/strong>\uff0c\u672c\u8d28\u4f9d\u7136\u662f\u7c7b\u548c\u5bf9\u8c61\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6ce8\u610f\uff1a\u6ca1\u6709\u6355\u83b7\u53c2\u6570\u7684lambda\u53ef\u4ee5\u5b58\u5165\u51fd\u6570\u6307\u9488\u53d8\u91cf\uff08\u51fd\u6570\u6307\u9488\uff09\uff0c\u6709\u7684\u4e0d\u80fd\u5b58\u5165\uff01<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u6765\u8bb2\u76f4\u63a5\u7528auto\u5b58\u653e<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>int factor = 2;\n\/\/ \u7528 auto \u81ea\u52a8\u8bc6\u522b\u7c7b\u578b\uff0c\u7ba1\u4f60\u6709\u6ca1\u6709\u6355\u83b7\u90fd\u80fd\u5b58\uff01\nauto multiply = &#91;factor&#93;(int x) { return x * factor; };\nstd::cout &lt;&lt; multiply(5) &lt;&lt; std::endl; \/\/ \u8f93\u51fa 10<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> factor = <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">\/\/ \u7528 auto \u81ea\u52a8\u8bc6\u522b\u7c7b\u578b\uff0c\u7ba1\u4f60\u6709\u6ca1\u6709\u6355\u83b7\u90fd\u80fd\u5b58\uff01<\/span><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">auto<\/span><span style=\"color: #D4D4D4\"> multiply = &#91;<\/span><span style=\"color: #9CDCFE\">factor<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #9CDCFE\">x<\/span><span style=\"color: #D4D4D4\">) { <\/span><span style=\"color: #C586C0\">return<\/span><span style=\"color: #D4D4D4\"> x * factor; };<\/span><\/span>\n<span class=\"line\"><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::cout &lt;&lt; <\/span><span style=\"color: #DCDCAA\">multiply<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #B5CEA8\">5<\/span><span style=\"color: #D4D4D4\">) &lt;&lt; <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::endl;<\/span><span style=\"color: #6A9955\"> \/\/ \u8f93\u51fa 10<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u767d\u8bdd\uff0c\u8fd9\u73a9\u610f\u5c31\u662f\u4e2a\u4e34\u65f6\u51fd\u6570\uff0c\u5982\u679c\u76ee\u6807\u51fd\u6570\u5199\u6b7b\u4e86\u5c31\u53ef\u4ee5\u628a\u8fd9\u4e2a\u4f20\u8fdb\u53bb\u6267\u884c\u8868\u8fbe\u5f0f\u91cc\u9762\u7684\u903b\u8f91\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>#include &lt;iostream>\n#include &lt;vector>\n#include &lt;functional>\n\n\/\/ 1. \u3010\u5199\u6b7b\/\u56fa\u5b9a\u6846\u67b6\u7684\u51fd\u6570\u3011\uff1a\u53ea\u8d1f\u8d23\u904d\u5386\uff0c\u600e\u4e48\u8fc7\u6ee4\u4ea4\u7ed9 condition\nvoid filterAndPrint(const std::vector&lt;int>&amp; numbers, std::function&lt;bool(int)> condition) {\n    for (int num : numbers) {\n        if (condition(num)) { \/\/ \ud83d\udca1 \u4f20\u8fdb\u6765\u7684 Lambda \u5728\u8fd9\u91cc\u88ab\u6267\u884c\uff01\n            std::cout &lt;&lt; num &lt;&lt; \" \";\n        }\n    }\n    std::cout &lt;&lt; std::endl;\n}\n\nint main() {\n    std::vector&lt;int> data = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};\n\n    \/\/ 2. \u60f3\u8981\u6253\u5370\u5076\u6570\uff1f\u76f4\u63a5\u4e34\u65f6\u4f20\u4e2a\u5224\u65ad\u5076\u6570\u7684 Lambda \u8fdb\u53bb\uff1a\n    std::cout &lt;&lt; \"\u5076\u6570: \";\n    filterAndPrint(data, [](int x) { return x % 2 == 0; });\n\n    \/\/ 3. \u7a81\u7136\u53c8\u60f3\u6253\u5370\u5927\u4e8e 5 \u7684\u5947\u6570\uff1f\u4e0d\u7528\u6539\u539f\u51fd\u6570\uff0c\u76f4\u63a5\u6362\u4e2a\u4e34\u65f6 Lambda\uff1a\n    std::cout &lt;&lt; \"\u5927\u4e8e 5 \u7684\u5947\u6570: \";\n    filterAndPrint(data, [](int x) { return x > 5 &amp;&amp; x % 2 != 0; });\n}<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #C586C0\">#include<\/span><span style=\"color: #569CD6\"> <\/span><span style=\"color: #CE9178\">&lt;iostream&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #C586C0\">#include<\/span><span style=\"color: #569CD6\"> <\/span><span style=\"color: #CE9178\">&lt;vector&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #C586C0\">#include<\/span><span style=\"color: #569CD6\"> <\/span><span style=\"color: #CE9178\">&lt;functional&gt;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">\/\/ 1. \u3010\u5199\u6b7b\/\u56fa\u5b9a\u6846\u67b6\u7684\u51fd\u6570\u3011\uff1a\u53ea\u8d1f\u8d23\u904d\u5386\uff0c\u600e\u4e48\u8fc7\u6ee4\u4ea4\u7ed9 condition<\/span><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">void<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">filterAndPrint<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #569CD6\">const<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::<\/span><span style=\"color: #4EC9B0\">vector<\/span><span style=\"color: #D4D4D4\">&lt;<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\">&gt;<\/span><span style=\"color: #569CD6\">&amp;<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #9CDCFE\">numbers<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::<\/span><span style=\"color: #4EC9B0\">function<\/span><span style=\"color: #D4D4D4\">&lt;<\/span><span style=\"color: #569CD6\">bool<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\">)&gt; <\/span><span style=\"color: #9CDCFE\">condition<\/span><span style=\"color: #D4D4D4\">) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #C586C0\">for<\/span><span style=\"color: #D4D4D4\"> (<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> num : numbers) {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #C586C0\">if<\/span><span style=\"color: #D4D4D4\"> (<\/span><span style=\"color: #DCDCAA\">condition<\/span><span style=\"color: #D4D4D4\">(num)) {<\/span><span style=\"color: #6A9955\"> \/\/ \ud83d\udca1 \u4f20\u8fdb\u6765\u7684 Lambda \u5728\u8fd9\u91cc\u88ab\u6267\u884c\uff01<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">            <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::cout &lt;&lt; num &lt;&lt; <\/span><span style=\"color: #CE9178\">&quot; &quot;<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    }<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::cout &lt;&lt; <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::endl;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">main<\/span><span style=\"color: #D4D4D4\">() {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::vector&lt;<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\">&gt; data = {<\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">3<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">4<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">5<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">6<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">7<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">8<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">9<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #B5CEA8\">10<\/span><span style=\"color: #D4D4D4\">};<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">    \/\/ 2. \u60f3\u8981\u6253\u5370\u5076\u6570\uff1f\u76f4\u63a5\u4e34\u65f6\u4f20\u4e2a\u5224\u65ad\u5076\u6570\u7684 Lambda \u8fdb\u53bb\uff1a<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::cout &lt;&lt; <\/span><span style=\"color: #CE9178\">&quot;\u5076\u6570: &quot;<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #DCDCAA\">filterAndPrint<\/span><span style=\"color: #D4D4D4\">(data, [](<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #9CDCFE\">x<\/span><span style=\"color: #D4D4D4\">) { <\/span><span style=\"color: #C586C0\">return<\/span><span style=\"color: #D4D4D4\"> x % <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\"> == <\/span><span style=\"color: #B5CEA8\">0<\/span><span style=\"color: #D4D4D4\">; });<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">    \/\/ 3. \u7a81\u7136\u53c8\u60f3\u6253\u5370\u5927\u4e8e 5 \u7684\u5947\u6570\uff1f\u4e0d\u7528\u6539\u539f\u51fd\u6570\uff0c\u76f4\u63a5\u6362\u4e2a\u4e34\u65f6 Lambda\uff1a<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #4EC9B0\">std<\/span><span style=\"color: #D4D4D4\">::cout &lt;&lt; <\/span><span style=\"color: #CE9178\">&quot;\u5927\u4e8e 5 \u7684\u5947\u6570: &quot;<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #DCDCAA\">filterAndPrint<\/span><span style=\"color: #D4D4D4\">(data, [](<\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #9CDCFE\">x<\/span><span style=\"color: #D4D4D4\">) { <\/span><span style=\"color: #C586C0\">return<\/span><span style=\"color: #D4D4D4\"> x &gt; <\/span><span style=\"color: #B5CEA8\">5<\/span><span style=\"color: #D4D4D4\"> &amp;&amp; x % <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\"> != <\/span><span style=\"color: #B5CEA8\">0<\/span><span style=\"color: #D4D4D4\">; });<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u7c7b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7c7b\uff08class\uff09\u662fC++\u6709\u522b\u4e8eC\u8bed\u8a00\u7684\u6700\u91cd\u8981\u7684\u6982\u5ff5\u4e4b\u4e00\uff0c\u6b63\u662f\u56e0\u4e3a\u6709\u4e86\u7c7b\u7684\u6982\u5ff5\uff0cC++\u624d\u62e5\u6709\u4e86\u6240\u8c13\u9762\u5411\u5bf9\u8c61\uff08OOP\uff0c\u5373Object OriginalProgramming\uff09\u7684\u7f16\u7a0b\u6a21\u5f0f\uff0c\u90a3\u4e48\u7c7b\u7a76\u7adf\u662f\u4ec0\u4e48\u5462\uff1f\u5355\u4ece\u8bed\u6cd5\u5c42\u9762\u8bb2\uff0c\u7c7b\u5176\u5b9e\u5c31\u662f\u589e\u52a0\u4e86\u51fd\u6570\u7684\u7ed3\u6784\u4f53\u3002\u800c\u4ece\u903b\u8f91\u5c42\u9762\u8bb2\uff0c\u7c7b\u662f\u589e\u52a0\u4e86\u6570\u636e\u884c\u4e3a\u7684\u7ed3\u6784\u4f53\u3002\u7c7b\u8ddf\u7ed3\u6784\u4f53\u4e00\u6837\uff0c\u5148\u8981\u81ea\u5b9a\u4e49\u7c7b\u7c7b\u578b\uff0c\u7136\u540e\u518d\u4f7f\u7528\u7c7b\u7c7b\u578b\u53bb\u5b9a\u4e49\u53d8\u91cf\uff08\u5bf9\u8c61\uff09\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>class A   \/\/class\u6362\u6210struct\u5c31\u662f\u7ed3\u6784\u4f53\n {          \/\/\u4e0d\u540c\uff1fstruct\u5b9a\u4e49\u7684\u7c7b\u5c5e\u6027\u548c\u65b9\u6cd5\u90fd\u9ed8\u8ba4\u4e3apubilc\uff0c\u90fd           \/\/\u53ef\u4ee5\u88ab\u5916\u90e8\u8bbf\u95ee\u3002class\u9700\u8981public\u4fee\u9970\u624d\u80fd\u88ab\u5916\u90e8\u8bbf\u95ee\npublic: \/\/ \u6210\u5458\u9650\u5b9a\u7b26 \u3010\u516c\u6709\u7684 \u3001 \u516c\u5f00\u7684\u3011\n\n\n int x;\n\n float y;\n\n\n \/\/ \u7c7b\u65b9\u6cd5\n\n void showInfo()\n\n {\n\n cout &lt;&lt; \"x:\" &lt;&lt; x &lt;&lt; endl;\n\n cout &lt;&lt; \"y:\" &lt;&lt; y &lt;&lt; endl;\n\n }};\n\nint main()\n{\n    A test; \/\/\u5b9e\u4f8b\u5316\u4e00\u4e2a\u5bf9\u8c61 test\uff1b\n    test.x = 1; \/\/\u901a\u8fc7.\u8bbf\u95ee\u7c7b\u4e2d\u7684\u5c5e\u6027\n    test.y = 2;\n    test.showInfo()\/\/\u540c\u7406\u8c03\u7528\u7c7b\u4e2d\u7684\u65b9\u6cd5\n    return 0;\n};<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">class<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">A<\/span><span style=\"color: #D4D4D4\">   <\/span><span style=\"color: #6A9955\">\/\/class\u6362\u6210struct\u5c31\u662f\u7ed3\u6784\u4f53<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> {<\/span><span style=\"color: #6A9955\">          \/\/\u4e0d\u540c\uff1fstruct\u5b9a\u4e49\u7684\u7c7b\u5c5e\u6027\u548c\u65b9\u6cd5\u90fd\u9ed8\u8ba4\u4e3apubilc\uff0c\u90fd           \/\/\u53ef\u4ee5\u88ab\u5916\u90e8\u8bbf\u95ee\u3002class\u9700\u8981public\u4fee\u9970\u624d\u80fd\u88ab\u5916\u90e8\u8bbf\u95ee<\/span><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">public:<\/span><span style=\"color: #6A9955\"> \/\/ \u6210\u5458\u9650\u5b9a\u7b26 \u3010\u516c\u6709\u7684 \u3001 \u516c\u5f00\u7684\u3011<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> x;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">float<\/span><span style=\"color: #D4D4D4\"> y;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\"> \/\/ \u7c7b\u65b9\u6cd5<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">void<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">showInfo<\/span><span style=\"color: #D4D4D4\">()<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> cout &lt;&lt; <\/span><span style=\"color: #CE9178\">&quot;x:&quot;<\/span><span style=\"color: #D4D4D4\"> &lt;&lt; x &lt;&lt; endl;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> cout &lt;&lt; <\/span><span style=\"color: #CE9178\">&quot;y:&quot;<\/span><span style=\"color: #D4D4D4\"> &lt;&lt; y &lt;&lt; endl;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> }};<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6\">int<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">main<\/span><span style=\"color: #D4D4D4\">()<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">{<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    A test;<\/span><span style=\"color: #6A9955\"> \/\/\u5b9e\u4f8b\u5316\u4e00\u4e2a\u5bf9\u8c61 test\uff1b<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #9CDCFE\">test<\/span><span style=\"color: #D4D4D4\">.<\/span><span style=\"color: #9CDCFE\">x<\/span><span style=\"color: #D4D4D4\"> = <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">;<\/span><span style=\"color: #6A9955\"> \/\/\u901a\u8fc7.\u8bbf\u95ee\u7c7b\u4e2d\u7684\u5c5e\u6027<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #9CDCFE\">test<\/span><span style=\"color: #D4D4D4\">.<\/span><span style=\"color: #9CDCFE\">y<\/span><span style=\"color: #D4D4D4\"> = <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #9CDCFE\">test<\/span><span style=\"color: #D4D4D4\">.<\/span><span style=\"color: #DCDCAA\">showInfo<\/span><span style=\"color: #D4D4D4\">()<\/span><span style=\"color: #6A9955\">\/\/\u540c\u7406\u8c03\u7528\u7c7b\u4e2d\u7684\u65b9\u6cd5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #C586C0\">return<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">0<\/span><span style=\"color: #D4D4D4\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">};<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0ctest \u672c\u8d28\u4e0a\u5c31\u662f\u4e00\u4e2a\u7c7b\u7c7b\u578b\u7684\u53d8\u91cf\uff0c\u4f46\u5728\u7c7b\u7684\u8bed\u5883\u4e2d\uff0c\u6211\u4eec\u4e00\u822c\u79f0\u7c7b\u53d8\u91cf\u4e3a\u5bf9\u8c61\uff08Object\uff09\uff0c\u79f0\u5bf9\u8c61\u4e2d\u7684\u51fd\u6570\u63a5\u53e3\u4e3a\u7c7b\u65b9\u6cd5\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5bf9\u8c61\uff1a\u7c7b\u53d8\u91cf<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7c7b\u65b9\u6cd5\uff1a\u5bf9\u8c61\u4e2d\u7684\u51fd\u6570\u63a5\u53e3<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5c06\u7c7b\u53d8\u91cf\u79f0\u4e3a\u5bf9\u8c61\u7684\u539f\u56e0\uff0c\u662f\u56e0\u4e3a\u5b83\u4eec\u4f53\u73b0\u7684\u662f\u5bf9\u73b0\u5b9e\u4e16\u754c\u7684\u62bd\u8c61\uff0c\u73b0\u5b9e\u4e16\u754c\u4e2d\u7684\u4e00\u4e2a\u5bf9\u8c61\u4e0d\u4ec5\u4ec5\u662f\u6570\u636e\uff0c\u8fd8\u5305\u62ec\u4e86\u5bf9\u8c61\u672c\u8eab\u7684\u884c\u4e3a\u5c5e\u6027\u3002\u6bd4\u5982\u4e0b\u9762\u8fd9\u4e9b\u90fd\u53ef\u4ee5\u88ab\u8bbe\u8ba1\u4e3a\u5178\u578b\u7684\u5bf9\u8c61\u5b9e\u4f8b\uff1a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5c0f\u732b\uff1a\u4e0d\u4ec5\u5305\u542b\u6bdb\u8272\u3001\u4f53\u91cd\u7b49\u6570\u636e\uff0c\u8fd8\u6709\u8fdb\u98df\u3001\u7761\u89c9\u3001\u5356\u840c\u7b49\u884c\u4e3a\u3002<\/strong><br><strong>\u6587\u4ef6\uff1a\u4e0d\u4ec5\u5305\u542b\u7c7b\u578b\u3001\u6743\u9650\u7b49\u6570\u636e\uff0c\u8fd8\u6709\u88ab\u6253\u5f00\u3001\u5173\u95ed\u3001\u8bfb\u5199\u7b49\u884c\u4e3a\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8fdb\u5ea6\u6761\uff1a\u4e0d\u4ec5\u5305\u542b\u5c3a\u5bf8\u3001\u767e\u5206\u6bd4\u7b49\u6570\u636e\uff0c\u8fd8\u4f1a\u6709\u8fdb\u5ea6\u7684\u53d8\u5316\u3001\u5f39\u7a97\u7b49\u884c\u4e3a\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7c7b\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u8c13\u7c7b\u65b9\u6cd5\uff0c\u5c31\u662f\u7c7b\u91cc\u9762\u7684\u51fd\u6570\u63a5\u53e3\uff0c\u8fd9\u662f\u4e0e\u7ed3\u6784\u4f53\u6709\u91cd\u5927\u533a\u522b\u7684\u5730\u65b9\u4e4b\u4e00\u3002\u7c7b\u65b9\u6cd5\u5b9e\u9645\u4e0a\u8868\u8fbe\u7684\u662f\u4e00\u4e2a\u5bf9\u8c61\u7684\u884c\u4e3a\u5c5e\u6027\uff0c\u6bd4\u5982\u5c0f\u732b\u7c7b Kitty \u5e94\u8be5\u8981\u63d0\u4f9b\u5982\u4e0b\u7c7b\u65b9\u6cd5\uff0c\u6765\u8868\u8fbe\u4e00\u53ea\u5c0f\u732b\u7684\u6b63\u5e38\u7684\u884c\u4e3a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#D4D4D4;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"\u590d\u5236\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>class Kitty\n {\n public:\n\n void eat(){\/*\u8fdb\u98df*\/}\n\n void sleep(){\/*\u7761\u89c9*\/}\n\n void actCute(){\/*\u5356\u840c*\/}7 };<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">class<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Kitty<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> {<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">public:<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">void<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">eat<\/span><span style=\"color: #D4D4D4\">(){<\/span><span style=\"color: #6A9955\">\/*\u8fdb\u98df*\/<\/span><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">void<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">sleep<\/span><span style=\"color: #D4D4D4\">(){<\/span><span style=\"color: #6A9955\">\/*\u7761\u89c9*\/<\/span><span style=\"color: #D4D4D4\">}<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #569CD6\">void<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">actCute<\/span><span style=\"color: #D4D4D4\">(){<\/span><span style=\"color: #6A9955\">\/*\u5356\u840c*\/<\/span><span style=\"color: #D4D4D4\">}<\/span><span style=\"color: #B5CEA8\">7<\/span><span style=\"color: #D4D4D4\"> };<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u7c7b\u6210\u5458\u6743\u9650\u9650\u5b9a\u7b26<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6211\u4eec\u53ef\u4ee5\u75283\u79cd\u9650\u5b9a\u7b26\u6765\u4fee\u9970\u7c7b\u91cc\u9762\u7684\u5c5e\u6027\u6216\u65b9\u6cd5<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>public\uff1a\u4efb\u4f55\u5730\u65b9\u90fd\u53ef\u4ee5\u8bbf\u95ee<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>protected\uff1a\u53ea\u80fd\u5728\u672c\u7c7b\u6216\u8005\u540e\u4ee3\u7c7b\u4e2d\u8bbf\u95ee<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>private\uff1a\u53ea\u80fd\u5728\u672c\u7c7b\u8bbf\u95ee<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5982\u679c\u6ca1\u6709\u52a0\u4efb\u4f55\u9650\u5b9a\u7b26\uff0c\u9ed8\u8ba4private\uff1b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e00\u822c\u6765\u8bb2\uff0c\u7c7b\u7684\u5c5e\u6027\u90fd\u662fprivate\u6216protected\u7684\uff0c\u4ec5\u80fd\u901a\u8fc7\u5916\u90e8\u8c03\u7528\u65b9\u6cd5\u6216\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u65b9\u5f0f\u8fdb\u884c\u4fee\u6539\u3002\u4f8b\u5982\u6709\u4e00\u4e2adog\u7c7b\uff0c\u5e74\u9f84\uff0c\u516c\u6bcd\u90fd\u4e0d\u80fd\u968f\u610f\u66f4\u6539\uff0c\u90a3\u4f1a\u4e71\u5957\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u65b9\u6cd5\u4e00\u822c\u4f1a\u7528public\u4fee\u9970\uff0c\u56e0\u4e3a\u8981\u88ab\u5916\u90e8\u8c03\u7528\u3002<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u547d\u540d\u7a7a\u95f4 \u540d\u5b57\u7a7a\u95f4\u672c\u8d28\u4e0a\u662f\u81ea\u5b9a\u4e49\u4f5c\u7528\u57df\uff0c\u7531\u4e8eC++\u8bbe\u8ba1\u7684\u521d\u8877\u662f\u5f00\u53d1\u5927\u89c4\u6a21\u8f6f\u4ef6\uff0c\u5927\u91cf\u7684\u8f6f\u4ef6\u5e93\u5fc5\u7136\u4f1a\u52a0\u5267\u5168\u5c40\u7b26\u53f7\uff08 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":271,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-523","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cpp"],"_links":{"self":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts\/523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/comments?post=523"}],"version-history":[{"count":1,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts\/523\/revisions"}],"predecessor-version":[{"id":525,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts\/523\/revisions\/525"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/media\/271"}],"wp:attachment":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/media?parent=523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/categories?post=523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/tags?post=523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}