{"id":89870,"date":"2026-08-04T00:48:36","date_gmt":"2026-08-03T16:48:36","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/89870.html"},"modified":"2026-08-04T00:48:36","modified_gmt":"2026-08-03T16:48:36","slug":"c%e7%b1%bb%e4%b8%8e%e5%af%b9%e8%b1%a1%e5%ae%8c%e6%95%b4%e5%ad%a6%e4%b9%a0%e8%b7%af%e7%ba%bf%ef%bc%88%e4%b8%8a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/89870.html","title":{"rendered":"C++\u7c7b\u4e0e\u5bf9\u8c61\u5b8c\u6574\u5b66\u4e60\u8def\u7ebf\uff08\u4e0a\uff09"},"content":{"rendered":"

\u6587\u7ae0\u5bfc\u822a<\/p>\n

\u524d\u5e8f<\/p>\n

\u4e00.\u7c7b\u7684\u5b9a\u4e49<\/p>\n

1.\u7c7b\u5b9a\u4e49\u683c\u5f0f<\/p>\n

1.1 \u8bbf\u95ee\u9650\u5b9a\u7b26\u9ed8\u8ba4\u89c4\u5219<\/p>\n

1.2 \u7c7b\u57df<\/p>\n

\u4e8c.\u5b9e\u4f8b\u5316\u5230\u5e95\u662f\u4ec0\u4e48？<\/p>\n

1.\u5b9e\u4f8b\u5316<\/p>\n

2. \u5bf9\u8c61\u7684\u5927\u5c0f<\/p>\n

\u4e09.\u4f60\u4e86\u89e3this\u6307\u9488\u591a\u5c11？<\/p>\n

\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5927\u5bb6\u597d，\u6211\u662f\u5c0f\u6c90\u3002\u6700\u8fd1\u6301\u7eed\u6df1\u8015C++\u57fa\u7840\u8bed\u6cd5，\u4eca\u5929\u4e5f\u662f\u521a\u597d\u6765\u5230\u4e86\u201c\u7c7b\u4e0e\u5bf9\u8c61\u201d\u8fd9\u4e00\u677f\u5757，\u6211\u4e5f\u521a\u597d\u6574\u7406\u4e86\u4e00\u4e9b\u77e5\u8bc6\u70b9，\u5bf9\u65b0\u624b\u53cb\u597d，\u9002\u5408\u521a\u5165\u95e8\u7684\u540c\u5b66\u67e5\u7f3a\u8865\u6f0f\u3002<\/p>\n

\u7c7b\u7684\u5b9a\u4e49\u3001\u5b9e\u4f8b\u5316\u548cthis\u6307\u9488<\/p>\n

\u4e00.\u7c7b\u7684\u5b9a\u4e49<\/h2>\n

1.\u7c7b\u5b9a\u4e49\u683c\u5f0f<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 C++\u4e2d\u7528class\u548cstruct\u4e24\u4e2a\u5173\u952e\u5b57\u6765\u5b9a\u4e49\u7c7b，{}\u4e2d\u4e3a\u7c7b\u7684\u4e3b\u4f53，\u7ed3\u675f\u65f6\u52a0\u4e0a\u5206\u53f7\u5373\u53ef，\u548cC\u8bed\u8a00\u4e2d\u7684\u7ed3\u6784\u4f53\u5199\u6cd5\u4e00\u6a21\u4e00\u6837\u3002\u90a3\u6211\u4eec\u4e0d\u7ecf\u95ee，\u7c7b\u5230\u5e95\u662f\u4ec0\u4e48？<\/p>\n

\u7c7b\u662f\u4e00\u79cd\u81ea\u5b9a\u4e49\u7684\u6570\u636e\u7c7b\u578b<\/span>，\u628a\u81ea\u53d8\u91cf\u548c\u51fd\u6570\u4f5c\u4e3a\u4e3b\u4f53（\u5373\u5c01\u88c5），\u79f0\u91cc\u9762\u7684\u81ea\u53d8\u91cf\u4e3a\u6210\u5458\u53d8\u91cf\u6216\u5c5e\u6027；\u79f0\u51fd\u6570\u4e3a\u6210\u5458\u51fd\u6570\u6216\u65b9\u6cd5\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u90a3\u5c0f\u767d\u80af\u5b9a\u4f1a\u6709\u7591\u60d1\u7684，\u521a\u4eceC\u8bed\u8a00\u8fc7\u6e21，\u53ea\u89c1\u8fc7\u5185\u7f6e\u7684\u6570\u636e\u7c7b\u578b\u5982：int \u3001char\u3001double\u548cstruct\u7b49，\u751a\u81f3\u90fd\u4e0d\u77e5\u9053\u4e00\u76f4\u5728\u7528\u7684struct\u4e5f\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b，\u90a3\u4f60\u4e00\u4e2a\u7c7b\u91cc\u9762\u53c8\u88c5\u51fd\u6570\u53c8\u88c5\u53d8\u91cf\u7684，\u65e2\u7136\u4e5f\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b，\u8fd9\u65f6\u5019\u770b\u5230\u8fd9\u91cc\u8111\u5b50\u91cc\u9762\u5c31\u4f1a\u61f5\u61f5\u7684\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u662f\u7684，\u7c7b\u5c31\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

class zhangsan
\n{
\nvoid fuct1()
\n{
\ncout << 1 << endl;
\n}
\n};<\/p>\n

struct lisi
\n{
\nvoid fuct2()
\n{
\ncout << 2 << endl;
\n}
\n};<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e24\u79cd\u7c7b\u5b9a\u4e49\u548c\u4f7f\u7528\u65b9\u6cd5\u4e00\u6a21\u4e00\u6837，\u4e5f\u7b97\u6cbf\u7528C\u8bed\u8a00\u7ed3\u6784\u4f53\u7684\u65b9\u5f0f\u4e86\u3002\u6211\u4eec\u7ee7\u7eed\u770b\u4e0b\u9762\u8fd9\u79cd\u8c03\u7528\u4f1a\u6709\u4ec0\u4e48\u7ed3\u679c？<\/p>\n

#include <iostream>
\nusing namespace std;<\/p>\n

class zhangsan
\n{
\nvoid fauct1()
\n{
\ncout << 1 << endl;
\n}
\n};<\/p>\n

struct lisi
\n{
\nvoid fuct2()
\n{
\ncout << 2 << endl;
\n}
\n};<\/p>\n

int main()
\n{
\nzhangsan zhang;
\nlisi li;
\nzhang.fuct1();
\nli.fuct2();
\nreturn 0;
\n} <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7b54\u6848\u5c31\u662f\u7f16\u8bd1\u62a5\u9519\u3002class\u548cstruct\u5b9a\u4e49\u7684\u7c7b\u867d\u7136\u8c03\u7528\u65b9\u5f0f\u4e00\u6837，\u4f46\u8bed\u6cd5\u4e0a\u5b58\u5728\u5dee\u5f02，\u90a3\u5c31\u662f\u8bbf\u95ee\u9650\u5b9a\u7b26\u9ed8\u8ba4\u89c4\u5219\u4e0d\u4e00\u6837\u3002<\/p>\n

1.1 \u8bbf\u95ee\u9650\u5b9a\u7b26\u9ed8\u8ba4\u89c4\u5219<\/h4>\n

class\u4e0estruct\u7684\u8bbf\u95ee\u9650\u5b9a\u7b26\u2014\u2014\u300bpublic\u00a0 \u516c\u5f00\u7684\u8bbf\u95ee\u9650\u5b9a\u7b26<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2014\u2014\u300bprotect\u00a0 \u4fdd\u62a4\u6027，\u6709\u9650\u5236\u7684\u9650\u5b9a\u7b26<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2014\u2014\u300bprivate\u00a0 \u79c1\u6709\u6027\u9650\u5b9a\u7b26<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u603b\u6240\u5468\u77e5，\u6709\u8fd9\u4e09\u4e2a\u9650\u5b9a\u7b26\u4fee\u9970\u7684\u533a\u57df，\u90fd\u4f1a\u6709\u76f8\u5e94\u7684\u7279\u6027\u5728\u91cc\u9762，\u90a3\u6ca1\u6709\u9650\u5b9a\u7b26\u4fee\u9970\u7684\u533a\u57df\u5462？\u4ece\u4e0a\u9762\u7684\u4f8b\u5b50\u6211\u4eec\u77e5\u9053，\u5e76\u4e0d\u662f\u4e24\u4e2a\u90fd\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u9ed8\u8ba4\u533a\u57df\u7684\u6210\u5458\u51fd\u6570\u7684\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u89c4\u5219：class\u7684\u9ed8\u8ba4\u533a\u57df\u662f\u5c5e\u4e8eprivate\u533a\u57df\u7684，\u7c7b\u5916\u4e0d\u4ee5\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0struct\u7684\u9ed8\u8ba4\u533a\u57df\u662f\u5c5e\u4e8epublic\u533a\u57df\u7684，\u7c7b\u5916\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n

\u5728\u4e60\u4e00\u822c\u60c5\u51b5\u4e0b，\u6211\u4eec\u662f\u4e0d\u4f1a\u628a\u6210\u5458\u51fd\u6570\u5199\u5230private\u4e2d\u800c\u662f\u5199\u5230public\u4e2d\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u90a3\u4e48\u5b9a\u4e49\u5728private\u4e2d\u7684\u6210\u5458\u53d8\u91cf，\u5916\u8fb9\u5c31\u6ca1\u6709\u529e\u6cd5\u8bbf\u95ee\u4e86\u5417？<\/p>\n

\u2014\u2014\u662f\u7684，\u7c7b\u5916\u786e\u5b9e\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95eeprivate\u4e2d\u7684\u6210\u5458\u53d8\u91cf，\u4f46\u53ef\u4ee5\u901a\u8fc7\u8fd9\u79cd\u95f4\u63a5\u7684\u8bbf\u95ee\u83b7\u53d6\u6210\u5458\u53d8\u91cf\u3002\u6211\u4eec\u4ee5\u65f6\u95f4\u7c7b\u4e3a\u4f8b：<\/p>\n

class Date
\n{
\npublic:
\nint GetYear()
\n{
\nreturn _year ;
\n}
\nint GetMonth()
\n{
\nreturn _month;
\n}
\nint GetDay()
\n{
\nreturn _day;
\n}
\nprivate:
\nint _year;
\nint _month;
\nint _day;
\n};<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0<\/p>\n

1.2 \u7c7b\u57df<\/h4>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4e0a\u9762\u6211\u4eec\u8bf4\u7c7b\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b，\u90a3\u4e48\u8fd9\u79cd\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u65f6\u5c31\u4f1a\u4ea7\u751f\u4e00\u4e2a\u57df，\u5b83\u7684\u6240\u6709\u6210\u5458\u90fd\u5728\u91cc\u9762，\u6211\u4eec\u79f0\u8fd9\u4e2a\u57df\u4e3a \u201c \u7c7b\u57df<\/span> \u201d\u3002\u7c7b\u57df\u548c\u5176\u5b83\u57df\u4e00\u6837，\u90fd\u4f1a\u5f71\u54cd\u7f16\u8bd1\u5668\u7684\u67e5\u627e\u89c4\u5219\u3002<\/p>\n

\u6211\u4eec\u4e00\u8d77\u6765\u770b\u4e0b\u9762\u7684\u4f8b\u5b50：<\/p>\n

class Stack
\n{
\npublic:
\n\/\/\u6210\u5458\u51fd\u6570
\nvoid Init(int n = 4);
\nprivate:
\n\/\/\u6210\u5458\u53d8\u91cf
\nint* array;
\nsize_t capacity;
\nsize_t top;
\n};<\/p>\n

void Init(int n)
\n{
\narray = (int*)malloc(sizeof(int) * n);
\nif (array == nullptr)
\n{
\nperror("Init::malloc");
\nreturn;
\n}
\ncapacity = n;
\ntop = 0;
\n}
\nint main()
\n{
\nStack st;
\nst.Init();
\nreturn 0;
\n } <\/p>\n

\u601d\u8003\u4e00\u4e0b，\u8fd9\u6bb5\u4ee3\u7801\u6709\u6ca1\u6709\u95ee\u9898？<\/p>\n

\u7b54\u6848：\u6709\u95ee\u9898！！！<\/p>\n

\u6211\u4eec\u8bf4\u7c7b\u4f1a\u5b9a\u4e49\u51fa\u4e00\u4e2a\u57df，\u800c\u57df\u8981\u88ab\u7c7b\u5916\u8bbf\u95ee\u662f\u9700\u8981\u901a\u8fc7\u57df\u8bbf\u95ee\u9650\u5b9a\u7b26（::）\u8bbf\u95ee\u7684\u3002\u4e5f\u5c31\u662f\u8bf4<\/p>\n

void Stack::Init(int n) \/\/\u8fd9\u91cc\u9700\u8981\u52a0\u4e0aStack::
\n{
\narray = (int*)malloc(sizeof(int) * n);
\nif (array == nullptr)
\n{
\nperror("Init::malloc");
\nreturn;
\n}
\ncapacity = n;
\ntop = 0;
\n} <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5982\u679c\u8fd9\u91cc\u6ca1\u6709\u52a0\u5165Stack::<\/span>，\u8fd9\u4e2a\u521d\u59cb\u5316\u51fd\u6570\u5c31\u53ea\u662f\u4e00\u4e2a\u5728\u5168\u5c40\u53d8\u91cf\u4e2d\u5b9a\u4e49\u7684\u51fd\u6570，\u7f3a\u5c11\u7684\u5404\u79cd\u53d8\u91cf\u7f16\u8bd1\u5668\u90fd\u4f1a\u81ea\u52a8\u53bb\u5168\u5c40\u57df\u91cc\u9762\u627e，\u6ca1\u6709\u627e\u5230，\u81ea\u7136\u5c31\u4f1a\u62a5\u9519\u4e86\u3002<\/p>\n<\/p>\n

\u4e8c.\u5b9e\u4f8b\u5316\u5230\u5e95\u662f\u4ec0\u4e48？<\/h2>\n

1.\u5b9e\u4f8b\u5316<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5b9a\u4e49：\u7c7b\u5b9a\u4e49\u51fa\u7684\u5177\u4f53\u5bf9\u8c61\u53eb\u505a\u5b9e\u4f8b\u5316<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8bf4\u5f97\u8fd9\u4e48\u9ad8\u7ea7，\u5176\u5b9e\u5c31\u662f\u7528\u7c7b\u5b9a\u4e49\u4e00\u4e2a\u5177\u4f53\u5bf9\u8c61，\u5982<\/p>\n

class Data
\n{
\n public:
\n int month;
\n int day;
\n}<\/p>\n

int main()
\n{<\/p>\n

Data d1; \/\/d1\u5c31\u662f\u5177\u4f53\u5bf9\u8c61
\n return 0;
\n} <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8fd9\u91cc\u7684d1\u5c31\u662f\u5177\u4f53\u7684\u5bf9\u8c61\u3002\u5b9a\u4e49\u4e86\u5177\u4f53\u5bf9\u8c61\u540e，\u5f00\u8f9f\u4e86\u53ef\u4ee5\u8fd0\u7528\u7684\u7a7a\u95f4，\u8fd9\u4e2a\u8fc7\u7a0b\u6211\u4eec\u5c31\u7ba1\u5b83\u5c31\u5b9e\u4f8b\u5316\u3002<\/p>\n

\u5f62\u8c61\u6bd4\u55bb：<\/span>\u7c7b\u5b9a\u4e49\u65f6，\u5c31\u50cf\u505a\u5efa\u7b51\u7528\u7684\u8bbe\u8ba1\u56fe，\u8fd9\u65f6\u5efa\u7b51\u4ec5\u4ec5\u505c\u7559\u5728\u56fe\u7eb8\u5c42\u9762，\u8fd8\u4e0d\u80fd\u4f4f\u4eba\u3002\u5f53\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5177\u4f53\u5bf9\u8c61\u540e，\u5c31\u50cf\u5efa\u7b51\u5df2\u7ecf\u4ece\u8bbe\u8ba1\u56fe\u5230\u5b8c\u6210\u5efa\u7b51\u5efa\u8bbe，\u53ef\u4ee5\u4f4f\u4eba\u4e86\u3002<\/p>\n

2. \u5bf9\u8c61\u7684\u5927\u5c0f<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u601d\u8003：\u65e2\u7136\u7c7b\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b，\u90a3\u4e48\u7c7b\u7684\u5927\u5c0f\u662f\u591a\u5927\u5462？\u662f\u6240\u6709\u6210\u5458\u7684\u7b80\u5355\u76f8\u52a0\u5417？<\/p>\n

\u5728\u8ba1\u7b97\u5bf9\u8c61\u5927\u5c0f\u524d，\u6211\u4eec\u5148\u518d\u5f04\u660e\u767d\u4e00\u4e2a\u4e8b\u60c5<\/p>\n

\u7c7b\u7684\u6210\u5458\u51fd\u6570\u662f\u5b58\u50a8\u5728\u7c7b\u91cc\u9762\u5417？<\/p>\n

\u5982\u679c\u662f，\u90a3\u5c31\u662f\u5b9a\u4e49\u4e00\u4e2a\u5177\u4f53\u5bf9\u8c61，\u5c31\u4f1a\u540c\u65f6\u5728\u6808\u5e27\u4e0a\u5f00\u8f9f\u4e00\u5757\u7a7a\u95f4\u5b58\u50a8\u51fd\u6570\u3002<\/p>\n

\u5982\u679c\u4e0d\u662f，\u90a3\u6210\u5458\u51fd\u6570\u4f1a\u5b58\u50a8\u5728\u54ea？\u591a\u4e2a\u5bf9\u8c61\u8c03\u7528\u65f6\u8fc7\u7a0b\u662f\u600e\u6837\u7684？<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e3a\u56de\u7b54\u8fd9\u4e2a\u95ee\u9898，\u6211\u4eec\u5c06\u4ece\u6c47\u7f16\u7684\u5c42\u9762\u89c2\u5bdf\u8c03\u7528\u8fc7\u7a0b\u3002\u4ee5\u8fd9\u6bb5\u4ee3\u7801\u4e3a\u4f8b<\/p>\n

class Stack
\n{
\npublic:
\n\/\/\u6210\u5458\u51fd\u6570
\nvoid Init(int n = 4)
\n{
\narray = (int*)malloc(sizeof(int) * n);
\nif (array == nullptr)
\n{
\nperror("Init::malloc");
\nreturn;
\n}
\ncapacity = n;
\ntop = 0;
\n}
\nprivate:
\n\/\/\u6210\u5458\u53d8\u91cf
\nint* array;
\nsize_t capacity;
\nsize_t top;
\n};<\/p>\n

int main()
\n{
\nStack ST1;
\nStack ST2;
\nST1.Init();
\nST2.Init();
\nreturn 0;
\n } <\/p>\n

\u73b0\u5728\u6211\u4eec\u5206\u522b\u5728ST1\u548cST2\u8c03\u7528\u51fa\u6253\u65ad\u70b9\u8fdb\u884c\u8c03\u8bd5（\u4e3a\u65b9\u4fbf\u89c2\u5bdf，\u6211\u4eec\u9009\u62e9\u5728x86\u73af\u5883\u8fdb\u884c\u8c03\u8bd5）\u3002<\/p>\n

\"\"<\/p>\n

\u6211\u4eec\u770b\u5230<\/p>\n

\u7b2c\u4e00\u6b65：push（\u5165\u6808）<\/p>\n

\u7b2c\u4e8c\u6b65：\u628aST1\u7684\u5730\u5740\u4f20\u7ed9\u5bc4\u5b58\u5668（ecx）<\/p>\n

\u7b2c\u4e09\u6b65：\u628aStack\u91cc\u9762\u7684Init（）\u51fd\u6570\u7684\u5730\u5740\u8ba1\u7b97\u51fa\u6765，\u7136\u540e\u8df3\u8f6c\u5230\u8fd9\u4e2a\u51fd\u6570\u7684\u5730\u5740\u6267\u884c\u64cd\u4f5c\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u6211\u4eec\u753b\u7684\u4e24\u4e2a\u7ea2\u5708\u4e2d\u660e\u663e\u6807\u6ce8\u7740ST1\u548cST2\u8c03\u7528\u65f6，\u8ba1\u7b97\u51fa\u7684\u5730\u5740\u662f\u4e00\u6837\u7684\u5440！\u8fd9\u8bf4\u660e\u5b83\u4e24\u8c03\u7528\u7684\u662f\u540c\u4e00\u4e2a\u51fd\u6570，\u4e5f\u5c31\u662f\u8bf4\u7c7b\u7684\u6210\u5458\u51fd\u6570\u867d\u7136\u662f\u5728\u7c7b\u91cc\u9762\u5b9a\u4e49\u7684，\u4f46\u7f16\u8bd1\u65f6\u5e76\u6ca1\u6709\u5b58\u50a8\u5728\u7c7b\u7684\u6808\u533a\u91cc\u9762\u3002<\/span>\u65e2\u7136\u6210\u5458\u51fd\u6570\u6ca1\u6709\u5b58\u50a8\u5728\u7c7b\u7684\u6808\u533a\u91cc\u9762，\u90a3\u4e48<\/span>\u7c7b\u7684\u5bf9\u8c61\u7684\u5927\u5c0f\u5c31\u4e0d\u9700\u8981\u8ba1\u7b97\u6210\u5458\u51fd\u6570\u7684\u5927\u5c0f\u3002<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>\u597d，\u6211\u4eec\u56de\u5f52\u5bf9\u8c61\u5927\u5c0f\u7684\u8ba1\u7b97\u95ee\u9898，\u4e00\u8d77\u770b\u4f8b\u5b50，\u6c42\u4e0b\u9762\u5bf9\u8c61\u7684\u5927\u5c0f:<\/span><\/p>\n

class ST1
\n{
\npublic:
\nint a;
\nchar b;
\n};
\nclass ST2
\n{
\nvoid fuct()
\n{
\nint a;
\n}
\n};
\nclass ST3
\n{ };<\/p>\n

int main()
\n{
\ncout << sizeof(ST1) << endl;
\ncout << sizeof(ST2) << endl;
\ncout << sizeof(ST3) << endl;
\nreturn 0;
\n} <\/p>\n

\u8bf7\u95ee：\u8fd9\u6bb5\u4ee3\u7801\u8f93\u51fa\u7684\u7ed3\u679c\u662f\u591a\u5c11？<\/p>\n

A.5，0, 0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B.8 ，0, 0\u00a0 \u00a0 \u00a0 \u00a0 C.5,1,1\u00a0 \u00a0 \u00a0 \u00a0 D.8,1,1<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u6211\u4eec\u6765\u516c\u5e03\u7b54\u6848<\/p>\n

\"\"\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u7531\u4e8e\u7f16\u8bd1\u5668\u5728\u8fd0\u884c\u65f6，\u53d7\u5230\u5185\u5b58\u5bf9\u9f50\u89c4\u5219\u7684\u7ea6\u675f，\u7b2c\u4e00\u4e2a\u6210\u5458\u653e\u5728\u7ed3\u6784\u4f53\u504f\u79fb\u91cf\u4e3a0\u7684\u4f4d\u7f6e，\u5176\u5b83\u6210\u5458\u5bf9\u9f50\u5230\u5bf9\u9f50\u6570（vs\u7684\u9ed8\u8ba4\u5bf9\u9f50\u6570\u4e3a8）\u7684\u6574\u6570\u500d\u7684\u5730\u5740\u51fa\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6ce8：\u5bf9\u9f50\u6570 = \u7f16\u8bd1\u5668\u9ed8\u8ba4\u7684\u4e00\u4e2a\u5bf9\u9f50\u6570 \u4e0e\u8be5\u6210\u5458\u5927\u5c0f\u7684\u8f83\u5c0f\u503c\u3002<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u603b\u5927\u5c0f = \u6700\u5927\u5bf9\u9f50\u6570\u7684\u6574\u6570\u500d<\/span><\/p>\n

\u90a3\u4e48ST1\u5728\u5185\u5b58\u4e2d\u5e94\u8be5\u662f\u8fd9\u6837\u7684<\/p>\n

\"\"<\/p>\n

\u7531\u4e8e\u6700\u5927\u5bf9\u9f50\u6570\u662f\u6574\u578b\u7684\u5bf9\u9f50\u65704，\u6545\u603b\u5927\u5c0f\u5e94\u8be5\u4e3a4\u7684\u6574\u6570\u500d，\u6545\u6700\u7ec8\u7ed3\u679c\u5e94\u4e3a8\u4e2a\u5b57\u8282\u3002<\/p>\n

\u95ee：\u4e3a\u4ec0\u4e48\u53ea\u5b9a\u4e49\u4e86\u6210\u5458\u51fd\u6570\u548c\u6ca1\u6709\u6210\u5458\u7684\u5bf9\u8c61\u5927\u5c0f\u4e0d\u4e3a0？<\/p>\n

\u56e0\u4e3a\u5982\u679c\u4e00\u4e2a\u5b57\u8282\u90fd\u4e0d\u7ed9，\u5c31\u6ca1\u6709\u529e\u6cd5\u8868\u793a\u5b83\u4eec\u786e\u5b9e\u5b58\u5728，\u6240\u4ee5\u8fd9\u91cc\u7ed91\u5b57\u8282，\u7eaf\u7cb9\u662f\u4e3a\u4e86\u5360\u4f4d\u6807\u8bc6\u5bf9\u8c61\u5b58\u5728\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u90a3\u4e48\u95ee\u9898\u53c8\u6765\u4e86，\u4e3a\u4ec0\u4e48\u8981\u5185\u5b58\u5bf9\u9f50，\u8fd9\u4e0d\u662f\u4f1a\u9020\u6210\u5185\u5b58\u6d6a\u8d39\u5417？<\/p>\n

\u8fd9\u548c\u673a\u5668\u786c\u4ef6\u5c42\u9762\u6709\u5173，\u786c\u4ef6\u91cc\u9762\u6709\u4e00\u4e2a\u53eb\u505a\u5730\u5740\u603b\u7ebf，\u670932\u6761\u621664\u6761（\u4e0e\u673a\u5668\u6709\u5173），\u6bcf\u4e00\u6761\u901a\u8fc7\u5145\u653e\u7535\u8868\u793a1\u548c0，\u4e5f\u5c31\u662f2\u8fdb\u5236\u7684\u8868\u73b0\u5f62\u5f0f\u3002\u4ee532\u6761\u5730\u5740\u603b\u7ebf\u7684\u673a\u5668\u4e3a\u4f8b，\u65e0\u8bba\u4f60\u6570\u636e\u5728\u5185\u5b58\u4e2d\u5982\u4f55\u5b58\u653e，\u6211cpu\u6bcf\u6b21\u8bfb\u53d6\u90fd\u662f\u6309\u716732bit\u7684\u5927\u5c0f\u7684\u6574\u6570\u500d\u8303\u56f4\u8fdb\u884c\u8bfb\u53d6，\u5982\u679c\u6570\u636e\u5b58\u653e\u6ca1\u6709\u5185\u5b58\u5bf9\u9f50，\u6709\u53ef\u80fd\u51fa\u73b0\u6570\u636e\u88ab\u622a\u65ad\u7684\u60c5\u51b5，\u5c31\u9700\u8981\u5728\u8bfb\u53d6\u7ed3\u675f\u540e\u8fdb\u884c\u62fc\u63a5，\u66f4\u52a0\u7e41\u7410，\u8fd8\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u8fd9\u4e2a\u65f6\u5019\u6211\u4eec\u7684\u9009\u62e9\u662f\u727a\u7272\u7a7a\u95f4\u6362\u53d6\u65f6\u95f4<\/span>\u3002<\/p>\n

\u4e09.\u4f60\u4e86\u89e3this\u6307\u9488\u591a\u5c11？<\/h2>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4e0a\u9762\u6211\u4eec\u6709\u8bf4\u8fc7，\u7c7b\u7684\u6210\u5458\u51fd\u6570\u5e76\u5b58\u50a8\u5728\u7c7b\u7684\u6808\u5e27\u533a\u57df\u91cc\u9762，\u4f46\u4e00\u4e2a\u7c7b\u540c\u65f6\u5b9a\u4e49\u51fa\u591a\u4e2a\u5177\u4f53\u5bf9\u8c61\u65f6，\u5b83\u4eec\u53ef\u4ee5\u8c03\u7528\u7edf\u4e00\u51fd\u6570，\u90a3\u4e48\u8fd9\u4e2a\u51fd\u6570\u662f\u5982\u4f55\u8bc6\u522b\u662f\u54ea\u4e2a\u5177\u4f53\u5bf9\u8c61\u5728\u8c03\u7528\u5b83\u5462？<\/p>\n

\u7b54\u6848\u5c31\u662f\u8fd9\u90e8\u5206\u7684\u4e3b\u89d2this\u6307\u9488\u3002<\/p>\n

class Date
\n{
\npublic:
\nvoid DATE(int year, int month, int day) \/\/void DATE(DATE* const this, int year, int month, int day)
\n{
\ncout << year << '\/' << month << '\/' << day << endl;
\n}
\n};<\/p>\n

int main()
\n{
\nDate d1;
\nDate d2;
\nd1.DATE(2026, 8, 3); \/\/d1.DATE(&d1,2026, 8, 3);
\nd2.DATE(2023, 9, 1); \/\/d2.DATE(&d2,2023, 9, 1);
\nreturn 0;
\n} <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5728\u7c7b\u57df\u91cc\u9762\u5b9a\u4e49\u7684\u51fd\u6570\u90fd\u9690\u85cf\u4e86\u4e00\u4e2athis\u6307\u9488,\u5728\u8c03\u7528\u51fd\u6570\u65f6，\u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u5e2e\u4f60\u628a\u5bf9\u8c61\u7684\u5730\u5740\u4e5f\u4f20\u8fc7\u53bb，\u5728\u8f93\u51fa\u90e8\u5206\u5b9e\u9645\u4e0a\u662f\u8fd9\u6837\u7684<\/p>\n

void DATE(int year, int month, int day) \/\/void DATE(DATE* const this, int year, int month, int day)
\n{
\ncout << this->year << '\/' << this->month << '\/' << this->day << endl;
\n}<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u53ea\u662f\u7f16\u8bd1\u5668\u628athis\u6307\u9488\u7ed9\u9690\u85cf\u4e86\u3002<\/p>\n

C++\u89c4\u5b9a：\u4e0d\u80fd\u5728\u5b9e\u53c2\u548c\u5f62\u53c2\u7684\u4f4d\u7f6e\u663e\u5f0f\u7684\u5199this\u6307\u9488，\u4f46\u662f\u53ef\u4ee5\u5728\u51fd\u6570\u4f53\u5185\u90e8\u663e\u5f0f\u5199this\u6307\u9488\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u65e2\u7136\u662f\u6307\u9488，\u5c31\u6709\u53ef\u80fd\u51fa\u73b0\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u7684\u60c5\u51b5，\u73b0\u5728\u6211\u4eec\u7ed3\u5408\u524d\u9762\u7684\u77e5\u8bc6，\u6765\u5224\u65ad\u4e0b\u9762\u4e24\u6bb5\u4ee3\u7801\u8fd0\u884c\u7ed3\u679c\u662f\u4ec0\u4e48？<\/p>\n

\u4ee3\u78011：<\/p>\n

class A
\n{
\npublic:
\nvoid Print()
\n{
\ncout << "Print(int a = 4)" << endl;
\n}
\nprivate:
\nint _a;
\n};
\nclass B
\n{
\npublic:
\nvoid Print()
\n{
\ncout << "Print(int a = 4)" << endl;
\ncout << _a << endl;
\n}
\nprivate:
\nint _a;
\n};<\/p>\n

int main()
\n{
\nA* a = nullptr;
\n\/\/B* b = nullptr;
\na->Print();
\n\/\/b->Print();
\nreturn 0;
\n} <\/p>\n

\u4ee3\u78012：<\/p>\n

class A
\n{
\npublic:
\nvoid Print()
\n{
\ncout << "Print(int a = 4)" << endl;
\n}
\nprivate:
\nint _a;
\n};
\nclass B
\n{
\npublic:
\nvoid Print()
\n{
\ncout << "Print(int a = 4)" << endl;
\ncout << _a << endl;
\n}
\nprivate:
\nint _a;
\n};<\/p>\n

int main()
\n{
\n\/\/A* a = nullptr;
\nB* b = nullptr;
\n\/\/a->Print();
\nb->Print();
\nreturn 0;
\n} <\/p>\n

\u4ee3\u78011：\u7f16\u8bd1\u62a5\u9519\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u8fd0\u884c\u5d29\u6e83\u00a0 \u00a0 \u00a0 \u00a0 \u6b63\u5e38\u8fd0\u884c<\/p>\n

\u4ee3\u78012：\u7f16\u8bd1\u62a5\u9519\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u8fd0\u884c\u5d29\u6e83\u00a0 \u00a0 \u00a0 \u00a0 \u6b63\u5e38\u8fd0\u884c<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u90a3\u4e48\u7b54\u6848\u662f\u4ee3\u78011\u6b63\u5e38\u8fd0\u884c，\u4ee3\u78012\u8fd0\u884c\u5d29\u6e83\u3002<\/p>\n

\u5982\u679c\u8fd9\u4e2a\u95ee\u9898\u6ca1\u6709\u505a\u5bf9，\u8bf4\u660e\u4f60\u5bf9this\u6307\u9488\u8fd8\u662f\u4e0d\u4e86\u89e3\u3002<\/p>\n

\u77e5\u8bc6\u70b9：this\u6307\u9488\u4f20\u7684\u662f\u5bf9\u8c61\u7684\u5730\u5740，\u4e0d\u662f\u5bf9\u8c61\u6307\u9488\u7684\u5730\u5740<\/p>\n

\u8fd9\u4e24\u4e2a\u5b9a\u4e49，\u56e0\u4e3aa\u548cb\u5df2\u7ecf\u5b58\u653e\u7684\u662f\u5bf9\u8c61\u7684\u5730\u5740\u4e86，\u6240\u4ee5\u8fd9\u91cc\u4f20\u503c\u7684\u65f6\u5019\u9ed8\u8ba4\u662f\u8fd9\u6837<\/p>\n

a->Print(a);\/\/\u4e0d\u662fa->Print(&a)
\nb->Print(b);\/\/\u4e0d\u662fb->Print(&b) <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u90a3\u6211\u4eec\u53c8\u77e5\u9053，\u5730\u5740\u4f20\u8fc7\u53bb\u540e，\u5982\u679c\u6ca1\u6709\u89e3\u5f15\u7528\u64cd\u4f5c，\u7f16\u8bd1\u5668\u662f\u4e0d\u4f1a\u62a5\u9519\u7684\u3002\u800c\u4ee3\u78011\u4ec5\u4ec5\u662f\u6253\u5370\u4e86\u4e00\u4e2a\u5b57\u7b26\u4e32\u554a，\u5e76\u6ca1\u6709\u89e3\u5f15\u7528\u64cd\u4f5c\u3002 \u00a0 \u5bf9\u4e8e\u4ee3\u78012\u5c31\u4e0d\u4e00\u6837\u4e86<\/p>\n

\u00a0 \u00a0 \u00a0<\/p>\n

class B
\n{
\npublic:
\nvoid Print()
\n{
\ncout << "Print(int a = 4)" << endl;
\ncout << _a << endl; \/\/\u8fd9\u91cc\u672c\u8d28\u5c31\u662fthis->_a
\n}
\nprivate:
\nint _a;
\n}; <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u8fd9\u91cc\u9762_a\u7684\u6253\u5370\u5b9e\u9645\u5c31\u662fthis->_a，\u4f46\u662f\u6211\u4eec\u7684this\u6307\u9488\u4f20\u8fc7\u53bb\u7684\u662f\u7a7a\u6307\u9488\u554a，\u5bf9\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u5c31\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u3002<\/p>\n<\/p>\n

\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u597d\u4e86\u672c\u7bc7\u5230\u8fd9\u91cc\u5c31\u7ed3\u675f\u4e86，\u4f60\u5728\u5b66\u4e60\u8fd9\u90e8\u5206\u7684\u65f6\u5019\u6709\u6ca1\u6709\u8e29\u8fc7\u4ec0\u4e48\u5751？\u8bc4\u8bba\u533a\u804a\u804a，\u6211\u6574\u7406\u5230\u4e0b\u4e00\u7bc7\u91cc~<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u5bfc\u822a
\n\u524d\u5e8f
\n\u4e00.\u7c7b\u7684\u5b9a\u4e49
\n1.\u7c7b\u5b9a\u4e49\u683c\u5f0f
\n1.1 \u8bbf\u95ee\u9650\u5b9a\u7b26\u9ed8\u8ba4\u89c4\u5219
\n1.2 \u7c7b\u57df
\n\u4e8c.\u5b9e\u4f8b\u5316\u5230\u5e95\u662f\u4ec0\u4e48？
\n1.\u5b9e\u4f8b\u5316
\n2. \u5bf9\u8c61\u7684\u5927\u5c0f
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