{"id":108084,"date":"2026-09-20T22:56:58","date_gmt":"2026-09-20T14:56:58","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108084.html"},"modified":"2026-09-20T22:56:58","modified_gmt":"2026-09-20T14:56:58","slug":"%e3%80%90%e5%88%9d%e9%98%b6c%e3%80%91%e6%a8%a1%e6%9d%bf%e8%bf%9b%e9%98%b6","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108084.html","title":{"rendered":"\u3010\u521d\u9636C++\u3011\u6a21\u677f\u8fdb\u9636"},"content":{"rendered":"

\u00a0\"\"<\/h3>\n

\u76ee\u5f55<\/p>\n

\u00a0\u200b\u7f16\u8f91<\/p>\n

\n

\u672c\u8282\u5b66\u4e60\u76ee\u6807<\/p>\n

1. \u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570<\/p>\n

\u26a0\ufe0f\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570\u4f7f\u7528\u9650\u5236<\/p>\n

2. \u6a21\u677f\u7279\u5316<\/p>\n

2.1 \u51fd\u6570\u6a21\u677f\u7279\u5316<\/p>\n

2.2 \u7c7b\u6a21\u677f\u7279\u5316<\/p>\n

2.2.1 \u5168\u7279\u5316<\/p>\n

2.2.2 \u504f\u7279\u5316<\/p>\n

3. \u6a21\u677f\u7684\u5206\u79bb\u7f16\u8bd1<\/p>\n

3.1 \u4ec0\u4e48\u662f\u5206\u79bb\u7f16\u8bd1<\/p>\n

3.2 \u6a21\u677f\u5206\u79bb\u7f16\u8bd1\u62a5\u9519\u95ee\u9898<\/p>\n

\u2705\u4e24\u79cd\u89e3\u51b3\u65b9\u6848<\/p>\n

4. \u6a21\u677f\u4f18\u7f3a\u70b9\u603b\u7ed3<\/p>\n

\u2705\u6a21\u677f\u4f18\u70b9<\/p>\n

\u274c\u6a21\u677f\u7f3a\u70b9<\/p>\n

📔\u8003\u70b9\u603b\u7ed3<\/p>\n

\n

\u672c\u8282\u5b66\u4e60\u76ee\u6807<\/h3>\n
  • \u638c\u63e1\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570，\u4f7f\u7528\u7f16\u8bd1\u671f\u5e38\u91cf\u4f5c\u4e3a\u6a21\u677f\u53c2\u6570，\u6e05\u695a\u4f7f\u7528\u9650\u5236<\/li>\n
  • \u7406\u89e3\u6a21\u677f\u7279\u5316：\u51fd\u6570\u6a21\u677f\u7279\u5316\u3001\u7c7b\u6a21\u677f\u5168\u7279\u5316\u3001\u7c7b\u6a21\u677f\u504f\u7279\u5316，\u89e3\u51b3\u7279\u6b8a\u7c7b\u578b\u903b\u8f91<\/li>\n
  • \u7406\u89e3\u6a21\u677f\u5206\u79bb\u7f16\u8bd1\u95ee\u9898，\u660e\u767d\u94fe\u63a5\u62a5\u9519\u6839\u6e90，\u638c\u63e1\u4e24\u79cd\u89e3\u51b3\u65b9\u6848<\/li>\n
  • \u603b\u7ed3\u6a21\u677f\u7684\u4f18\u70b9\u4e0e\u7f3a\u9677<\/li>\n

    1. \u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570<\/h3>\n

    \u6a21\u677f\u53c2\u6570\u5206\u4e3a\u4e24\u7c7b：<\/p>\n

  • \u7c7b\u578b\u5f62\u53c2：template<class T>，T\u4ee3\u8868\u4e00\u79cd\u6570\u636e\u7c7b\u578b\u3002<\/li>\n
  • \u975e\u7c7b\u578b\u5f62\u53c2：\u7f16\u8bd1\u671f\u5e38\u91cf，\u4f5c\u4e3a\u6a21\u677f\u5185\u7684\u5e38\u91cf\u4f7f\u7528\u3002<\/li>\n

    \u793a\u4f8b：\u6a21\u62df\u9759\u6001\u6570\u7ec4，N\u662f\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570，\u4ee3\u8868\u6570\u7ec4\u5927\u5c0f<\/p>\n

    namespace bite
    \n{
    \n\/\/ N\u4e3a\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570，\u5e26\u9ed8\u8ba4\u503c10
    \ntemplate<class T, size_t N = 10>
    \nclass array
    \n{
    \npublic:
    \n T& operator[](size_t index){return _array[index];}
    \n const T& operator[](size_t index)const{return _array[index];}
    \n size_t size()const{return N;}
    \n bool empty()const{return 0 == N;}
    \nprivate:
    \n T _array[N]; \/\/\u7f16\u8bd1\u671f\u786e\u5b9a\u5927\u5c0f\u7684\u9759\u6001\u6570\u7ec4
    \n};
    \n}<\/p>\n

    \u26a0\ufe0f\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570\u4f7f\u7528\u9650\u5236<\/h4>\n
  • \u53ea\u80fd\u662f\u7f16\u8bd1\u671f\u53ef\u4ee5\u786e\u5b9a\u7ed3\u679c\u7684\u5e38\u91cf，\u4e0d\u80fd\u4f20\u53d8\u91cf\u3002<\/li>\n
  • \u7981\u6b62\u6d6e\u70b9\u6570\u3001\u7c7b\u5bf9\u8c61\u3001\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u4f5c\u4e3a\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570\u3002<\/li>\n

    \u5141\u8bb8：size_t\u3001int\u3001\u6307\u9488\u3001\u5f15\u7528\u7b49\u7f16\u8bd1\u671f\u53ef\u6c42\u503c\u7684\u6574\u578b \/ \u5730\u5740\u5e38\u91cf\u3002<\/p>\n

    2. \u6a21\u677f\u7279\u5316<\/h3>\n

    \u57fa\u7840\u6a21\u677f\u5b9e\u73b0\u901a\u7528\u903b\u8f91，\u4f46\u662f\u90e8\u5206\u7279\u6b8a\u7c7b\u578b（\u5982\u6307\u9488）\u6309\u7167\u901a\u7528\u6a21\u677f\u4f1a\u5f97\u5230\u9519\u8bef\u7ed3\u679c\u3002 \u6a21\u677f\u7279\u5316：\u9488\u5bf9\u67d0\u4e00\u7c7b\u7279\u6b8a\u7c7b\u578b，\u5355\u72ec\u5b9a\u5236\u4e00\u5957\u5b9e\u73b0\u3002 \u5206\u4e3a：\u51fd\u6570\u6a21\u677f\u7279\u5316\u3001\u7c7b\u6a21\u677f\u7279\u5316（\u5168\u7279\u5316\u3001\u504f\u7279\u5316）\u3002<\/p>\n

    2.1 \u51fd\u6570\u6a21\u677f\u7279\u5316<\/h4>\n

    \u793a\u4f8b：\u901a\u7528\u6bd4\u8f83Less\u6a21\u677f\u3002 \u666e\u901a\u7c7b\u578b\u53ef\u4ee5\u6b63\u5e38\u6bd4\u8f83；\u4f20\u5165\u6307\u9488\u65f6，\u901a\u7528\u6a21\u677f\u6bd4\u8f83\u6307\u9488\u5730\u5740，\u4e0d\u662f\u6307\u9488\u6307\u5411\u5bf9\u8c61\u5185\u5bb9，\u903b\u8f91\u9519\u8bef\u3002<\/p>\n

    template<class T>
    \nbool Less(T left, T right)
    \n{
    \n return left < right;
    \n}<\/p>\n

    \/\/\u5047\u8bbeDate\u7c7b\u5df2\u7ecf\u5b9a\u4e49
    \nint main()
    \n{
    \n Less(1,2); \/\/\u6b63\u5e38，\u6bd4\u8f83\u6570\u503c
    \n Date d1(2022,7,7);
    \n Date d2(2022,7,8);
    \n Less(d1,d2); \/\/\u6b63\u5e38，\u6bd4\u8f83\u5bf9\u8c61
    \n Date* p1 = &d1;
    \n Date* p2 = &d2;
    \n Less(p1,p2); \/\/\u9519\u8bef！\u6bd4\u8f83\u7684\u662f\u6307\u9488\u5730\u5740，\u4e0d\u662f*p1\u3001*p2\u5bf9\u8c61\u5185\u5bb9
    \n return 0;
    \n}<\/p>\n

    \u2705\u51fd\u6570\u6a21\u677f\u7279\u5316\u6b65\u9aa4：<\/p>\n

  • \u5fc5\u987b\u5148\u5b58\u5728\u57fa\u7840\u51fd\u6570\u6a21\u677f；<\/li>\n
  • template<>\u5c16\u62ec\u53f7\u4e3a\u7a7a；<\/li>\n
  • \u51fd\u6570\u540d\u540e<\u7279\u5316\u7684\u7c7b\u578b>；<\/li>\n
  • \u5f62\u53c2\u7c7b\u578b\u5fc5\u987b\u548c\u57fa\u7840\u6a21\u677f\u5b8c\u5168\u5339\u914d\u3002<\/li>\n

    \/\/\u57fa\u7840\u6a21\u677f
    \ntemplate<class T>
    \nbool Less(T left, T right)
    \n{
    \n return left < right;
    \n}<\/p>\n

    \/\/\u9488\u5bf9Date*\u6307\u9488\u7279\u5316
    \ntemplate<>
    \nbool Less<Date*>(Date* left, Date* right)
    \n{
    \n return *left < *right; \/\/\u89e3\u5f15\u7528，\u6bd4\u8f83\u5bf9\u8c61\u5185\u5bb9
    \n}<\/p>\n

    \u5b9e\u64cd\u7ecf\u9a8c： \u51fd\u6570\u6a21\u677f\u7279\u5316\u53ef\u8bfb\u6027\u4e00\u822c，\u9047\u5230\u7279\u6b8a\u7c7b\u578b，\u4f18\u5148\u76f4\u63a5\u5199\u666e\u901a\u91cd\u8f7d\u51fd\u6570，\u6bd4\u7279\u5316\u7b80\u5355\u597d\u7ef4\u62a4\u3002<\/p>\n

    \/\/\u76f4\u63a5\u91cd\u8f7d，\u66ff\u4ee3\u7279\u5316，\u63a8\u8350\u5199\u6cd5
    \nbool Less(Date* left, Date* right)
    \n{
    \n return *left < *right;
    \n}<\/p>\n

    2.2 \u7c7b\u6a21\u677f\u7279\u5316<\/h4>\n

    2.2.1 \u5168\u7279\u5316<\/h5>\n

    \u5168\u7279\u5316：\u628a\u6a21\u677f\u6240\u6709\u53c2\u6570\u5168\u90e8\u6307\u5b9a\u4e3a\u786e\u5b9a\u7c7b\u578b\u3002<\/p>\n

    template<class T1, class T2>
    \nclass Data
    \n{
    \npublic:
    \n Data(){cout<<"Data<T1, T2>" <<endl;}
    \nprivate:
    \n T1 _d1;
    \n T2 _d2;
    \n};<\/p>\n

    \/\/\u5168\u7279\u5316：T1=int，T2=char，\u5168\u90e8\u786e\u5b9a
    \ntemplate<>
    \nclass Data<int, char>
    \n{
    \npublic:
    \n Data(){cout<<"Data<int, char>" <<endl;}
    \nprivate:
    \n int _d1;
    \n char _d2;
    \n};<\/p>\n

    void Test()
    \n{
    \n Data<int,int> d1; \/\/\u8d70\u901a\u7528\u6a21\u677f
    \n Data<int,char> d2; \/\/\u8d70\u5168\u7279\u5316\u7248\u672c
    \n}<\/p>\n

    2.2.2 \u504f\u7279\u5316<\/h5>\n

    \u504f\u7279\u5316\u4e0d\u662f\u53ea\u7279\u5316\u4e00\u90e8\u5206\u53c2\u6570，\u5305\u542b\u4e24\u79cd\u5f62\u5f0f：<\/p>\n

  • \u90e8\u5206\u53c2\u6570\u7279\u5316：\u53ea\u786e\u5b9a\u4e00\u90e8\u5206\u6a21\u677f\u53c2\u6570，\u5269\u4e0b\u4fdd\u7559\u6a21\u677f\u53c2\u6570；<\/li>\n
  • \u53c2\u6570\u8fdb\u4e00\u6b65\u9650\u5236：\u5bf9\u6a21\u677f\u53c2\u6570\u65bd\u52a0\u7c7b\u578b\u7ea6\u675f（\u4f8b\u5982\u9650\u5b9a\u4e3a\u6307\u9488\u3001\u5f15\u7528）\u3002<\/li>\n

    template<class T1, class T2>
    \nclass Data
    \n{
    \npublic:
    \n Data(){cout<<"Data<T1, T2>"<<endl;}
    \nprivate:
    \n T1 _d1;
    \n T2 _d2;
    \n};<\/p>\n

    \/\/\u2460\u90e8\u5206\u7279\u5316：\u7b2c\u4e8c\u4e2a\u53c2\u6570\u56fa\u5b9a\u4e3aint，T1\u4ecd\u7136\u662f\u6a21\u677f\u53c2\u6570
    \ntemplate <class T1>
    \nclass Data<T1, int>
    \n{
    \npublic:
    \n Data(){cout<<"Data<T1, int>"<<endl;}
    \nprivate:
    \n T1 _d1;
    \n int _d2;
    \n};<\/p>\n

    \/\/\u2461\u53c2\u6570\u6761\u4ef6\u9650\u5236：\u4e24\u4e2a\u53c2\u6570\u9650\u5b9a\u4e3a\u6307\u9488\u7c7b\u578b
    \ntemplate <typename T1, typename T2>
    \nclass Data <T1*, T2*>
    \n{
    \npublic:
    \n Data(){cout<<"Data<T1*, T2*>"<<endl;}
    \nprivate:
    \n T1 _d1;
    \n T2 _d2;
    \n};<\/p>\n

    \u7c7b\u6a21\u677f\u7279\u5316\u5b9e\u6218\u573a\u666f：sort\u6392\u5e8f，\u5bb9\u5668\u5b58\u6307\u9488，\u9700\u8981\u6bd4\u8f83\u6307\u9488\u6307\u5411\u5bf9\u8c61\u800c\u4e0d\u662f\u6307\u9488\u5730\u5740\u3002<\/p>\n

    template<class T>
    \nstruct Less
    \n{
    \n bool operator()(const T& x, const T& y) const
    \n {
    \n return x < y;
    \n }
    \n};<\/p>\n

    \/\/\u5bf9\u6307\u9488\u7c7b\u578b\u7279\u5316
    \ntemplate<>
    \nstruct Less<Date*>
    \n{
    \n bool operator()(Date* x, Date* y) const
    \n {
    \n return *x < *y;
    \n }
    \n};<\/p>\n

    3. \u6a21\u677f\u7684\u5206\u79bb\u7f16\u8bd1<\/h3>\n

    3.1 \u4ec0\u4e48\u662f\u5206\u79bb\u7f16\u8bd1<\/h4>\n

    C\/C++ \u5de5\u7a0b：\u591a\u4e2a.h\u5934\u6587\u4ef6\u3001.cpp\u6e90\u6587\u4ef6；\u6bcf\u4e2a cpp\u5355\u72ec\u7f16\u8bd1\u751f\u6210 obj \u76ee\u6807\u6587\u4ef6，\u6700\u540e\u94fe\u63a5\u5668\u628a\u6240\u6709 obj \u5408\u5e76\u6210\u53ef\u6267\u884c\u7a0b\u5e8f\u3002<\/p>\n

    3.2 \u6a21\u677f\u5206\u79bb\u7f16\u8bd1\u62a5\u9519\u95ee\u9898<\/h4>\n

    \u9519\u8bef\u5199\u6cd5：\u6a21\u677f\u58f0\u660e\u653e.h，\u6a21\u677f\u5b9e\u73b0\u5b9a\u4e49\u653e\u5728.cpp\u3002<\/p>\n

    \/\/ a.h
    \ntemplate<class T>
    \nT Add(const T& left, const T& right);<\/p>\n

    \/\/ a.cpp
    \ntemplate<class T>
    \nT Add(const T& left, const T& right)
    \n{
    \n return left + right;
    \n}<\/p>\n

    \/\/ main.cpp
    \n#include "a.h"
    \nint main()
    \n{
    \n Add(1,2);
    \n Add(1.0,2.0);
    \n return 0;
    \n}<\/p>\n

    \"\"<\/p>\n

    \u7f16\u8bd1\u8fc7\u7a0b\u5206\u6790：<\/p>\n

  • a.cpp\u5355\u72ec\u7f16\u8bd1，\u672c\u6587\u4ef6\u770b\u4e0d\u5230Add<int>\u3001Add<double>\u5b9e\u4f8b\u8c03\u7528，\u4e0d\u4f1a\u751f\u6210\u5b9e\u4f8b\u5316\u7684\u673a\u5668\u4ee3\u7801\u3002<\/li>\n
  • main.cpp\u770b\u5230\u6a21\u677f\u58f0\u660e，\u7f16\u8bd1\u901a\u8fc7；\u4f46\u662f\u94fe\u63a5\u7684\u65f6\u5019\u627e\u4e0d\u5230Add<int>\u3001Add<double>\u7684 obj \u5b9e\u73b0，\u62a5\u65e0\u6cd5\u89e3\u6790\u7684\u5916\u90e8\u7b26\u53f7\u94fe\u63a5\u9519\u8bef\u3002<\/li>\n

    \u6a21\u677f\u662f\u7f16\u8bd1\u671f\u5b9e\u4f8b\u5316：\u53ea\u6709\u770b\u5230\u5b8c\u6574\u6a21\u677f\u5b9a\u4e49，\u7f16\u8bd1\u5668\u624d\u4f1a\u751f\u6210\u5bf9\u5e94\u7c7b\u578b\u5b9e\u4f8b\u4ee3\u7801\u3002<\/p>\n

    \u2705\u4e24\u79cd\u89e3\u51b3\u65b9\u6848<\/h4>\n
  • \u3010\u5de5\u7a0b\u63a8\u8350\u3011\u58f0\u660e\u548c\u5b9e\u73b0\u5168\u90e8\u653e\u5728\u540c\u4e00\u4e2a\u5934\u6587\u4ef6，\u540e\u7f00\u4e00\u822c\u5199.hpp\u3002 .hpp\u5934\u6587\u4ef6\u628a\u6a21\u677f\u58f0\u660e + \u5b9e\u73b0\u5199\u5728\u4e00\u8d77，#include\u65f6\u7f16\u8bd1\u5668\u770b\u5230\u5b8c\u6574\u6a21\u677f\u5b9a\u4e49，\u53ef\u4ee5\u6309\u9700\u5b9e\u4f8b\u5316\u3002<\/li>\n
  • \u663e\u5f0f\u5b9e\u4f8b\u5316（\u6781\u5c11\u7528，\u4e0d\u63a8\u8350），\u63d0\u524d\u624b\u52a8\u5b9e\u4f8b\u5316\u9700\u8981\u7684\u7c7b\u578b，\u6269\u5c55\u6027\u5dee\u3002<\/li>\n

    \u3010\u5206\u79bb\u7f16\u8bd1\u6269\u5c55\u9605\u8bfb\u3011<\/span>
    \n \u4e3a\u4ec0\u4e48C++\u7f16\u8bd1\u5668\u4e0d\u80fd\u652f\u6301\u5bf9\u6a21\u677f\u7684\u5206\u79bb\u5f0f\u7f16\u8bd1-CSDN\u535a\u5ba2<\/p>\n

    4. \u6a21\u677f\u4f18\u7f3a\u70b9\u603b\u7ed3<\/h3>\n

    \u2705\u6a21\u677f\u4f18\u70b9<\/h4>\n
  • \u4ee3\u7801\u590d\u7528，\u4e00\u5957\u903b\u8f91\u9002\u914d\u591a\u79cd\u7c7b\u578b，STL \u6807\u51c6\u5e93\u5927\u91cf\u57fa\u4e8e\u6a21\u677f\u5b9e\u73b0\u3002<\/li>\n
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  • \u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570：\u7f16\u8bd1\u671f\u5e38\u91cf；\u4e0d\u80fd\u7528\u6d6e\u70b9\u6570\u3001\u5bf9\u8c61\u3001\u5b57\u7b26\u4e32，\u53ea\u80fd\u7f16\u8bd1\u671f\u786e\u5b9a\u7684\u503c\u3002<\/li>\n
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      \n
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    • \u6a21\u677f\u4f18\u70b9：\u590d\u7528\u3001\u7075\u6d3b；\u7f3a\u70b9：\u4ee3\u7801\u81a8\u80c0\u3001\u62a5\u9519\u4fe1\u606f\u96be\u61c2\u3002<\/li>\n

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      A：\u4e0d\u53ef\u4ee5，\u53ea\u63a5\u53d7\u7f16\u8bd1\u671f\u6574\u578b\u5e38\u91cf，\u6d6e\u70b9\u6570\u3001\u5bf9\u8c61\u3001\u5b57\u7b26\u4e32\u4e0d\u5141\u8bb8\u3002<\/p>\n<\/p>\n

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      A：cpp \u7f16\u8bd1\u5355\u5143\u770b\u4e0d\u5230\u8c03\u7528\u7684\u7c7b\u578b，\u4e0d\u4f1a\u5b9e\u4f8b\u5316\u751f\u6210\u51fd\u6570\u4ee3\u7801，\u94fe\u63a5\u627e\u4e0d\u5230\u7b26\u53f7\u62a5\u9519；\u5efa\u8bae\u5168\u90e8\u5199\u5728 hpp \u5934\u6587\u4ef6\u3002<\/p>\n<\/p>\n

      Q：\u7c7b\u6a21\u677f\u504f\u7279\u5316\u548c\u5168\u7279\u5316\u533a\u522b？<\/p>\n

      A：\u5168\u7279\u5316\u6240\u6709\u6a21\u677f\u53c2\u6570\u5168\u90e8\u6307\u5b9a；\u504f\u7279\u5316\u53ef\u4ee5\u53ea\u56fa\u5b9a\u90e8\u5206\u53c2\u6570，\u6216\u8005\u5bf9\u53c2\u6570\u65bd\u52a0\u6761\u4ef6（\u6307\u9488\u3001\u5f15\u7528）\u3002<\/p>\n

      \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

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      \n\u638c\u63e1\u975e\u7c7b\u578b\u6a21\u677f\u53c2\u6570，\u4f7f\u7528\u7f16\u8bd1\u671f\u5e38\u91cf\u4f5c\u4e3a\u6a21\u677f\u53c2\u6570，\u6e05\u695a\u4f7f\u7528\u9650\u5236\u7406\u89e3<\/p>\n","protected":false},"author":2,"featured_media":108081,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,190],"topic":[],"class_list":["post-108084","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-190"],"yoast_head":"\n\u3010\u521d\u9636C++\u3011\u6a21\u677f\u8fdb\u9636 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/108084.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010\u521d\u9636C++\u3011\u6a21\u677f\u8fdb\u9636 - 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