{"id":77,"date":"2026-03-22T00:32:04","date_gmt":"2026-03-21T16:32:04","guid":{"rendered":"https:\/\/codergodv.xyz\/?p=77"},"modified":"2026-03-22T00:36:02","modified_gmt":"2026-03-21T16:36:02","slug":"c%e7%bb%a7%e6%89%bf","status":"publish","type":"post","link":"https:\/\/codergodv.xyz\/index.php\/2026\/03\/22\/c%e7%bb%a7%e6%89%bf\/","title":{"rendered":"C++\u7ee7\u627f"},"content":{"rendered":"\n

\u7ee7\u627f\u7684\u6982\u5ff5\u53ca\u5b9a\u4e49<\/h2>\n\n\n\n

\u7ee7\u627f\u7684\u6982\u5ff5<\/h3>\n\n\n\n

\u7ee7\u627f\uff08inheritance\uff09\u673a\u5236\u662f\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u4f7f\u4ee3\u7801\u53ef\u4ee5\u590d\u7528\u7684\u91cd\u8981\u7684\u624b\u6bb5\uff0c\u5b83\u5141\u8bb8\u7a0b\u5e8f\u5458\u5728\u4fdd\u6301\u539f\u6709\u7c7b\u7279\u6027\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u6269\u5c55\uff0c\u589e\u52a0\u529f\u80fd\uff0c\u8fd9\u6837\u4ea7\u751f\u65b0\u7684\u7c7b\uff0c\u79f0\u4e3a\u6d3e\u751f\u7c7b\u3002
\u7ee7\u627f\u5448\u73b0\u4e86\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u5c42\u6b21\u7ed3\u6784\uff0c\u4f53\u73b0\u4e86\u7531\u7b80\u5355\u5230\u590d\u6742\u7684\u8ba4\u77e5\u8fc7\u7a0b\u3002\u4ee5\u524d\u6211\u4eec\u63a5\u89e6\u7684\u590d\u7528\u90fd\u662f\u51fd\u6570\u590d\u7528\uff0c\u800c\u7ee7\u627f\u4fbf\u662f\u7c7b\u8bbe\u8ba1\u5c42\u6b21\u7684\u590d\u7528\u3002<\/p>\n\n\n\n

\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u4e2dStudent\u7c7b\u548cTeacher\u7c7b\u5c31\u7ee7\u627f\u4e86Person\u7c7b\u3002<\/p>\n\n\n\n

\/\/\u7236\u7c7b\nclass Person\n{\npublic:\n    void Print()\n    {\n        cout << \"name:\" << _name << endl;\n        cout << \"age:\" << _age << endl;\n    }\nprotected:\n    string _name = \"\u5f20\u4e09\"; \/\/\u59d3\u540d\n    int _age = 18;     \/\/\u5e74\u9f84\n};\n\/\/\u5b50\u7c7b\nclass Student : public Person\n{\nprotected:\n    int _stuid;   \/\/\u5b66\u53f7\n};\n\/\/\u5b50\u7c7b\nclass Teacher : public Person\n{\nprotected:\n    int _jobid;   \/\/\u5de5\u53f7\n};<\/code><\/pre>\n\n\n\n
\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
\u7ee7\u627f\u540e\uff0c\u7236\u7c7bPerson\u7684\u6210\u5458\uff0c\u5305\u62ec\u6210\u5458\u51fd\u6570\u548c\u6210\u5458\u53d8\u91cf\uff0c\u90fd\u4f1a\u53d8\u6210\u5b50\u7c7b\u7684\u4e00\u90e8\u5206\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b50\u7c7bStudent\u548cTeacher\u590d\u7528\u4e86\u7236\u7c7bPerson\u7684\u6210\u5458\u3002<\/p>\n\n\n\n
\u7ee7\u627f\u7684\u5b9a\u4e49<\/h3>\n\n\n\n
\u5b9a\u4e49\u683c\u5f0f<\/h4>\n\n\n\n
\u7ee7\u627f\u7684\u5b9a\u4e49\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
\u8bf4\u660e\uff1a<\/strong> \u5728\u7ee7\u627f\u5f53\u4e2d\uff0c\u7236\u7c7b\u4e5f\u79f0\u4e3a\u57fa\u7c7b\uff0c\u5b50\u7c7b\u662f\u7531\u57fa\u7c7b\u6d3e\u751f\u800c\u6765\u7684\uff0c\u6240\u4ee5\u5b50\u7c7b\u53c8\u79f0\u4e3a\u6d3e\u751f\u7c7b\u3002<\/p>\n\n\n\n
\u7ee7\u627f\u65b9\u5f0f\u548c\u8bbf\u95ee\u9650\u5b9a\u7b26<\/h4>\n\n\n\n
\u6211\u4eec\u77e5\u9053\uff0c\u8bbf\u95ee\u9650\u5b9a\u7b26\u6709\u4ee5\u4e0b\u4e09\u79cd\uff1a<\/strong><\/p>\n\n\n\n
    \n
  1. public\u8bbf\u95ee<\/li>\n\n\n\n
  2. protected\u8bbf\u95ee<\/li>\n\n\n\n
  3. private\u8bbf\u95ee<\/li>\n<\/ol>\n\n\n\n
    \u800c\u7ee7\u627f\u7684\u65b9\u5f0f\u4e5f\u6709\u7c7b\u4f3c\u7684\u4e09\u79cd\uff1a<\/strong><\/p>\n\n\n\n
      \n
    1. public\u7ee7\u627f<\/li>\n\n\n\n
    2. protected\u7ee7\u627f<\/li>\n\n\n\n
    3. private\u7ee7\u627f<\/li>\n<\/ol>\n\n\n\n
      \u7ee7\u627f\u57fa\u7c7b\u6210\u5458\u8bbf\u95ee\u65b9\u5f0f\u7684\u53d8\u5316<\/h4>\n\n\n\n
      \u57fa\u7c7b\u5f53\u4e2d\u88ab\u4e0d\u540c\u8bbf\u95ee\u9650\u5b9a\u7b26\u4fee\u9970\u7684\u6210\u5458\uff0c\u4ee5\u4e0d\u540c\u7684\u7ee7\u627f\u65b9\u5f0f\u7ee7\u627f\u5230\u6d3e\u751f\u7c7b\u5f53\u4e2d\u540e\uff0c\u8be5\u6210\u5458\u6700\u7ec8\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u7684\u8bbf\u95ee\u65b9\u5f0f\u5c06\u4f1a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n
      \u7c7b\u6210\u5458\/\u7ee7\u627f\u65b9\u5f0f<\/th>public\u7ee7\u627f<\/th>protected\u7ee7\u627f<\/th>private\u7ee7\u627f<\/th><\/tr><\/thead>
      \u57fa\u7c7b\u7684public\u6210\u5458<\/td>\u6d3e\u751f\u7c7b\u7684public\u6210\u5458<\/td>\u6d3e\u751f\u7c7b\u7684protected\u6210\u5458<\/td>\u6d3e\u751f\u7c7b\u7684private\u6210\u5458<\/td><\/tr>
      \u57fa\u7c7b\u7684protected\u6210\u5458<\/td>\u6d3e\u751f\u7c7b\u7684protected\u6210\u5458<\/td>\u6d3e\u751f\u7c7b\u7684protected\u6210\u5458<\/td>\u6d3e\u751f\u7c7b\u7684private\u6210\u5458<\/td><\/tr>
      \u57fa\u7c7b\u7684private\u6210\u5458<\/td>\u5728\u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1<\/td>\u5728\u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1<\/td>\u5728\u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \u7a0d\u4f5c\u89c2\u5bdf\uff0c\u5b9e\u9645\u4e0a\u57fa\u7c7b\u6210\u5458\u8bbf\u95ee\u65b9\u5f0f\u7684\u53d8\u5316\u89c4\u5219\u4e5f\u4e0d\u662f\u65e0\u8ff9\u53ef\u5bfb\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba4\u4e3a\u4e09\u79cd\u8bbf\u95ee\u9650\u5b9a\u7b26\u7684\u6743\u9650\u5927\u5c0f\u4e3a\uff1apublic > protected > private\uff0c\u57fa\u7c7b\u6210\u5458\u8bbf\u95ee\u65b9\u5f0f\u7684\u53d8\u5316\u89c4\u5219\u5982\u4e0b\uff1a<\/p>\n\n\n\n
        \n
      1. \u5728\u57fa\u7c7b\u5f53\u4e2d\u7684\u8bbf\u95ee\u65b9\u5f0f\u4e3apublic\u6216protected\u7684\u6210\u5458\uff0c\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u7684\u8bbf\u95ee\u65b9\u5f0f\u53d8\u4e3a\uff1aMin(\u6210\u5458\u5728\u57fa\u7c7b\u7684\u8bbf\u95ee\u65b9\u5f0f\uff0c\u7ee7\u627f\u65b9\u5f0f)\u3002<\/li>\n\n\n\n
      2. \u5728\u57fa\u7c7b\u5f53\u4e2d\u7684\u8bbf\u95ee\u65b9\u5f0f\u4e3aprivate\u7684\u6210\u5458\uff0c\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u90fd\u662f\u4e0d\u53ef\u89c1\u7684\u3002<\/li>\n<\/ol>\n\n\n\n
        \n
        \u57fa\u7c7b\u7684private\u6210\u5458\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u4e0d\u53ef\u89c1\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/p>\n<\/blockquote>\n\n\n\n
        \u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f\uff0c\u6211\u4eec\u65e0\u6cd5\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u8bbf\u95ee\u57fa\u7c7b\u7684private\u6210\u5458\u3002\u4f8b\u5982\uff0c\u867d\u7136Student\u7c7b\u7ee7\u627f\u4e86Person\u7c7b\uff0c\u4f46\u662f\u6211\u4eec\u65e0\u6cd5\u5728Student\u7c7b\u5f53\u4e2d\u8bbf\u95eePerson\u7c7b\u5f53\u4e2d\u7684private\u6210\u5458_name\u3002<\/p>\n\n\n\n
        \/\/\u57fa\u7c7b\nclass Person\n{\nprivate:\n    string _name = \"\u5f20\u4e09\"; \/\/\u59d3\u540d\n};\n\/\/\u6d3e\u751f\u7c7b\nclass Student : public Person\n{\npublic:\n    void Print()\n    {\n        \/\/\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u8bbf\u95ee\u57fa\u7c7b\u7684private\u6210\u5458\uff0cerror!\n        cout << _name << endl; \n    }\nprotected:\n    int _stuid;   \/\/\u5b66\u53f7\n};<\/code><\/pre>\n\n\n\n
        \u4e5f\u5c31\u662f\u8bf4\uff0c\u57fa\u7c7b\u7684private\u6210\u5458\u65e0\u8bba\u4ee5\u4ec0\u4e48\u65b9\u5f0f\u7ee7\u627f\uff0c\u5728\u6d3e\u751f\u7c7b\u4e2d\u90fd\u662f\u4e0d\u53ef\u89c1\u7684\uff0c\u8fd9\u91cc\u7684\u4e0d\u53ef\u89c1\u662f\u6307\u57fa\u7c7b\u7684\u79c1\u6709\u6210\u5458\u867d\u7136\u88ab\u7ee7\u627f\u5230\u4e86\u6d3e\u751f\u7c7b\u5bf9\u8c61\u4e2d\uff0c\u4f46\u662f\u8bed\u6cd5\u4e0a\u9650\u5236\u6d3e\u751f\u7c7b\u5bf9\u8c61\u4e0d\u7ba1\u5728\u7c7b\u91cc\u9762\u8fd8\u662f\u7c7b\u5916\u9762\u90fd\u4e0d\u80fd\u53bb\u8bbf\u95ee\u5b83\u3002<\/p>\n\n\n\n
        \u56e0\u6b64\uff0c\u57fa\u7c7b\u7684private\u6210\u5458\u5728\u6d3e\u751f\u7c7b\u4e2d\u662f\u4e0d\u80fd\u88ab\u8bbf\u95ee\u7684\uff0c\u5982\u679c\u57fa\u7c7b\u6210\u5458\u4e0d\u60f3\u5728\u7c7b\u5916\u76f4\u63a5\u88ab\u8bbf\u95ee\uff0c\u4f46\u9700\u8981\u5728\u6d3e\u751f\u7c7b\u4e2d\u80fd\u8bbf\u95ee\uff0c\u5c31\u9700\u8981\u5b9a\u4e49\u4e3aprotected\uff0c\u7531\u6b64\u53ef\u4ee5\u770b\u51fa\uff0cprotected\u9650\u5b9a\u7b26\u662f\u56e0\u7ee7\u627f\u624d\u51fa\u73b0\u7684\u3002<\/p>\n\n\n\n
        \u6ce8\u610f\uff1a<\/strong> \u5728\u5b9e\u9645\u8fd0\u7528\u4e2d\u4e00\u822c\u4f7f\u7528\u7684\u90fd\u662fpublic\u7ee7\u627f\uff0c\u51e0\u4e4e\u5f88\u5c11\u4f7f\u7528protected\u548cprivate\u7ee7\u627f\uff0c\u4e5f\u4e0d\u63d0\u5021\u4f7f\u7528protected\u548cprivate\u7ee7\u627f\uff0c\u56e0\u4e3a\u4f7f\u7528protected\u548cprivate\u7ee7\u627f\u4e0b\u6765\u7684\u6210\u5458\u90fd\u53ea\u80fd\u5728\u6d3e\u751f\u7c7b\u7684\u7c7b\u91cc\u9762\u4f7f\u7528\uff0c\u5b9e\u9645\u4e2d\u6269\u5c55\u7ef4\u62a4\u6027\u4e0d\u5f3a\u3002<\/p>\n\n\n\n
        \u9ed8\u8ba4\u7ee7\u627f\u65b9\u5f0f<\/h4>\n\n\n\n
        \u5728\u4f7f\u7528\u7ee7\u627f\u7684\u65f6\u5019\u4e5f\u53ef\u4ee5\u4e0d\u6307\u5b9a\u7ee7\u627f\u65b9\u5f0f\uff0c\u4f7f\u7528\u5173\u952e\u5b57class\u65f6\u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f\u662fprivate\uff0c\u4f7f\u7528struct\u65f6\u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f\u662fpublic\u3002<\/p>\n\n\n\n
        \u4f8b\u5982\uff0c\u5728\u5173\u952e\u5b57\u4e3aclass\u7684\u6d3e\u751f\u7c7b\u5f53\u4e2d\uff0c\u6240\u7ee7\u627f\u7684\u57fa\u7c7b\u6210\u5458_name\u7684\u8bbf\u95ee\u65b9\u5f0f\u53d8\u4e3aprivate\u3002<\/p>\n\n\n\n
        \/\/\u57fa\u7c7b\nclass Person\n{\npublic:\n    string _name = \"\u5f20\u4e09\"; \/\/\u59d3\u540d\n};\n\/\/\u6d3e\u751f\u7c7b\nclass Student : Person \/\/\u9ed8\u8ba4\u4e3aprivate\u7ee7\u627f\n{\nprotected:\n    int _stuid;   \/\/\u5b66\u53f7\n};<\/code><\/pre>\n\n\n\n
        \u800c\u5728\u5173\u952e\u5b57\u4e3astruct\u7684\u6d3e\u751f\u7c7b\u5f53\u4e2d\uff0c\u6240\u7ee7\u627f\u7684\u57fa\u7c7b\u6210\u5458_name\u7684\u8bbf\u95ee\u65b9\u5f0f\u4ecd\u4e3apublic\u3002<\/p>\n\n\n\n
        \/\/\u57fa\u7c7b\nclass Person\n{\npublic:\n    string _name = \"\u5f20\u4e09\"; \/\/\u59d3\u540d\n};\n\/\/\u6d3e\u751f\u7c7b\nstruct Student : Person \/\/\u9ed8\u8ba4\u4e3apublic\u7ee7\u627f\n{\nprotected:\n    int _stuid;   \/\/\u5b66\u53f7\n};<\/code><\/pre>\n\n\n\n
        \u6ce8\u610f\uff1a<\/strong> \u867d\u7136\u7ee7\u627f\u65f6\u53ef\u4ee5\u4e0d\u6307\u5b9a\u7ee7\u627f\u65b9\u5f0f\u800c\u91c7\u7528\u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f\uff0c\u4f46\u8fd8\u662f\u6700\u597d\u663e\u793a\u7684\u5199\u51fa\u7ee7\u627f\u65b9\u5f0f\u3002<\/p>\n\n\n\n
        \u57fa\u7c7b\u548c\u6d3e\u751f\u7c7b\u5bf9\u8c61\u8d4b\u503c\u8f6c\u6362<\/h2>\n\n\n\n
        \u6d3e\u751f\u7c7b\u5bf9\u8c61\u53ef\u4ee5\u8d4b\u503c\u7ed9\u57fa\u7c7b\u7684\u5bf9\u8c61\u3001\u57fa\u7c7b\u7684\u6307\u9488\u4ee5\u53ca\u57fa\u7c7b\u7684\u5f15\u7528\uff0c\u56e0\u4e3a\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u53d1\u751f\u57fa\u7c7b\u548c\u6d3e\u751f\u7c7b\u5bf9\u8c61\u4e4b\u95f4\u7684\u8d4b\u503c\u8f6c\u6362\u3002<\/p>\n\n\n\n
        \u4f8b\u5982\uff0c\u5bf9\u4e8e\u4ee5\u4e0b\u57fa\u7c7b\u53ca\u5176\u6d3e\u751f\u7c7b\u3002<\/p>\n\n\n\n
        \/\/\u57fa\u7c7b\nclass Person\n{\nprotected:\n    string _name; \/\/\u59d3\u540d\n    string _sex;  \/\/\u6027\u522b\n    int _age;     \/\/\u5e74\u9f84\n};\n\/\/\u6d3e\u751f\u7c7b\nclass Student : public Person\n{\nprotected:\n    int _stuid;   \/\/\u5b66\u53f7\n};<\/code><\/pre>\n\n\n\n
        \u4ee3\u7801\u5f53\u4e2d\u53ef\u4ee5\u51fa\u73b0\u4ee5\u4e0b\u903b\u8f91\uff1a<\/p>\n\n\n\n
        Student s;\nPerson p = s;     \/\/\u6d3e\u751f\u7c7b\u5bf9\u8c61\u8d4b\u503c\u7ed9\u57fa\u7c7b\u5bf9\u8c61\nPerson* ptr = &s; \/\/\u6d3e\u751f\u7c7b\u5bf9\u8c61\u8d4b\u503c\u7ed9\u57fa\u7c7b\u6307\u9488\nPerson& ref = s;  \/\/\u6d3e\u751f\u7c7b\u5bf9\u8c61\u8d4b\u503c\u7ed9\u57fa\u7c7b\u5f15\u7528<\/code><\/pre>\n\n\n\n
        \u5bf9\u4e8e\u8fd9\u79cd\u505a\u6cd5\uff0c\u6709\u4e2a\u5f62\u8c61\u7684\u8bf4\u6cd5\u53eb\u505a\u5207\u7247\/\u5207\u5272\uff0c\u5bd3\u610f\u628a\u6d3e\u751f\u7c7b\u4e2d\u57fa\u7c7b\u90a3\u90e8\u5206\u5207\u6765\u8d4b\u503c\u8fc7\u53bb\u3002
        \u6d3e\u751f\u7c7b\u5bf9\u8c61\u8d4b\u503c\u7ed9\u57fa\u7c7b\u5bf9\u8c61\u56fe\u793a\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
        \u6d3e\u751f\u7c7b\u5bf9\u8c61\u8d4b\u503c\u7ed9\u57fa\u7c7b\u6307\u9488\u56fe\u793a\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
        \u6d3e\u751f\u7c7b\u5bf9\u8c61\u8d4b\u503c\u7ed9\u57fa\u7c7b\u5f15\u7528\u56fe\u793a\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
        \u6ce8\u610f\uff1a<\/strong> \u57fa\u7c7b\u5bf9\u8c61\u4e0d\u80fd\u8d4b\u503c\u7ed9\u6d3e\u751f\u7c7b\u5bf9\u8c61\uff0c\u57fa\u7c7b\u7684\u6307\u9488\u53ef\u4ee5\u901a\u8fc7\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u8d4b\u503c\u7ed9\u6d3e\u751f\u7c7b\u7684\u6307\u9488\uff0c\u4f46\u662f\u6b64\u65f6\u57fa\u7c7b\u7684\u6307\u9488\u5fc5\u987b\u662f\u6307\u5411\u6d3e\u751f\u7c7b\u7684\u5bf9\u8c61\u624d\u662f\u5b89\u5168\u7684\u3002<\/p>\n\n\n\n
        \u7ee7\u627f\u4e2d\u7684\u4f5c\u7528\u57df<\/h2>\n\n\n\n
        \u5728\u7ee7\u627f\u4f53\u7cfb\u4e2d\u7684\u57fa\u7c7b\u548c\u6d3e\u751f\u7c7b\u90fd\u6709\u72ec\u7acb\u7684\u4f5c\u7528\u57df\u3002\u82e5\u5b50\u7c7b\u548c\u7236\u7c7b\u4e2d\u6709\u540c\u540d\u6210\u5458\uff0c\u5b50\u7c7b\u6210\u5458\u5c06\u5c4f\u853d\u7236\u7c7b\u5bf9\u540c\u540d\u6210\u5458\u7684\u76f4\u63a5\u8bbf\u95ee\uff0c\u8fd9\u79cd\u60c5\u51b5\u53eb\u9690\u85cf\uff0c\u4e5f\u53eb\u91cd\u5b9a\u4e49\u3002<\/p>\n\n\n\n
        \u4f8b\u5982\uff0c\u5bf9\u4e8e\u4ee5\u4e0b\u4ee3\u7801\uff0c\u8bbf\u95ee\u6210\u5458_num\u65f6\u5c06\u8bbf\u95ee\u5230\u5b50\u7c7b\u5f53\u4e2d\u7684_num\u3002<\/p>\n\n\n\n
        #include <iostream>\n#include <string>\nusing namespace std;\n\/\/\u7236\u7c7b\nclass Person\n{\nprotected:\n    int _num = 111;\n};\n\/\/\u5b50\u7c7b\nclass Student : public Person\n{\npublic:\n    void fun()\n    {\n        cout << _num << endl;\n    }\nprotected:\n    int _num = 999;\n};\nint main()\n{\n    Student s;\n    s.fun(); \/\/999\n    return 0;\n}<\/code><\/pre>\n\n\n\n
        \u82e5\u6b64\u65f6\u6211\u4eec\u5c31\u662f\u8981\u8bbf\u95ee\u7236\u7c7b\u5f53\u4e2d\u7684_num\u6210\u5458\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4f5c\u7528\u57df\u9650\u5b9a\u7b26\u8fdb\u884c\u6307\u5b9a\u8bbf\u95ee\u3002<\/p>\n\n\n\n
        void fun()\n{\n    cout << Person::_num << endl; \/\/\u6307\u5b9a\u8bbf\u95ee\u7236\u7c7b\u5f53\u4e2d\u7684_num\u6210\u5458\n}<\/code><\/pre>\n\n\n\n
        \n
        \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u662f\u6210\u5458\u51fd\u6570\u7684\u9690\u85cf\uff0c\u53ea\u9700\u8981\u51fd\u6570\u540d\u76f8\u540c\u5c31\u6784\u6210\u9690\u85cf\u3002<\/p>\n<\/blockquote>\n\n\n\n
        \u4f8b\u5982\uff0c\u5bf9\u4e8e\u4ee5\u4e0b\u4ee3\u7801\uff0c\u8c03\u7528\u6210\u5458\u51fd\u6570fun\u65f6\u5c06\u76f4\u63a5\u8c03\u7528\u5b50\u7c7b\u5f53\u4e2d\u7684fun\uff0c\u82e5\u60f3\u8c03\u7528\u7236\u7c7b\u5f53\u4e2d\u7684fun\uff0c\u5219\u9700\u4f7f\u7528\u4f5c\u7528\u57df\u9650\u5b9a\u7b26\u6307\u5b9a\u7c7b\u57df\u3002<\/p>\n\n\n\n
        #include <iostream>\n#include <string>\nusing namespace std;\n\/\/\u7236\u7c7b\nclass Person\n{\npublic:\n    void fun(int x)\n    {\n        cout << x << endl;\n    }\n};\n\/\/\u5b50\u7c7b\nclass Student : public Person\n{\npublic:\n    void fun(double x)\n    {\n        cout << x << endl;\n    }\n};\nint main()\n{\n    Student s;\n    s.fun(3.14);       \/\/\u76f4\u63a5\u8c03\u7528\u5b50\u7c7b\u5f53\u4e2d\u7684\u6210\u5458\u51fd\u6570fun\n    s.Person::fun(20); \/\/\u6307\u5b9a\u8c03\u7528\u7236\u7c7b\u5f53\u4e2d\u7684\u6210\u5458\u51fd\u6570fun\n    return 0;\n}<\/code><\/pre>\n\n\n\n
        \u7279\u522b\u6ce8\u610f\uff1a<\/strong> \u4ee3\u7801\u5f53\u4e2d\uff0c\u7236\u7c7b\u4e2d\u7684fun\u548c\u5b50\u7c7b\u4e2d\u7684fun\u4e0d\u662f\u6784\u6210\u51fd\u6570\u91cd\u8f7d\uff0c\u56e0\u4e3a\u51fd\u6570\u91cd\u8f7d\u8981\u6c42\u4e24\u4e2a\u51fd\u6570\u5728\u540c\u4e00\u4f5c\u7528\u57df\uff0c\u800c\u6b64\u65f6\u8fd9\u4e24\u4e2afun\u51fd\u6570\u5e76\u4e0d\u5728\u540c\u4e00\u4f5c\u7528\u57df\u3002\u4e3a\u4e86\u907f\u514d\u7c7b\u4f3c\u95ee\u9898\uff0c\u5b9e\u9645\u5728\u7ee7\u627f\u4f53\u7cfb\u5f53\u4e2d\u6700\u597d\u4e0d\u8981\u5b9a\u4e49\u540c\u540d\u7684\u6210\u5458\u3002<\/p>\n\n\n\n
        \u6d3e\u751f\u7c7b\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570<\/h2>\n\n\n\n
        \u9ed8\u8ba4\u6210\u5458\u51fd\u6570\uff0c\u5373\u6211\u4eec\u4e0d\u5199\u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u751f\u6210\u7684\u51fd\u6570\uff0c\u7c7b\u5f53\u4e2d\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\u6709\u4ee5\u4e0b\u516d\u4e2a\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
        \u4e0b\u9762\u6211\u4eec\u770b\u770b\u6d3e\u751f\u7c7b\u5f53\u4e2d\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\uff0c\u4e0e\u666e\u901a\u7c7b\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\u7684\u4e0d\u540c\u4e4b\u5904\u3002<\/p>\n\n\n\n
        \u4f8b\u5982\uff0c\u6211\u4eec\u4ee5\u4e0b\u9762\u8fd9\u4e2aPerson\u7c7b\u4e3a\u57fa\u7c7b\u3002<\/p>\n\n\n\n
        \/\/\u57fa\u7c7b\nclass Person\n{\npublic:\n    \/\/\u6784\u9020\u51fd\u6570\n    Person(const string& name = \"peter\")\n        :_name(name)\n    {\n        cout << \"Person()\" << endl;\n    }\n    \/\/\u62f7\u8d1d\u6784\u9020\u51fd\u6570\n    Person(const Person& p)\n        :_name(p._name)\n    {\n        cout << \"Person(const Person& p)\" << endl;\n    }\n    \/\/\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570\n    Person& operator=(const Person& p)\n    {\n        cout << \"Person& operator=(const Person& p)\" << endl;\n        if (this != &p)\n        {\n            _name = p._name;\n        }\n        return *this;\n    }\n    \/\/\u6790\u6784\u51fd\u6570\n    ~Person()\n    {\n        cout << \"~Person()\" << endl;\n    }\nprivate:\n    string _name; \/\/\u59d3\u540d\n};<\/code><\/pre>\n\n\n\n
        \u6211\u4eec\u7528\u8be5\u57fa\u7c7b\u6d3e\u751f\u51faStudent\u7c7b\uff0cStudent\u7c7b\u5f53\u4e2d\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\u7684\u57fa\u672c\u903b\u8f91\u5982\u4e0b\uff1a<\/p>\n\n\n\n
        \/\/\u6d3e\u751f\u7c7b\nclass Student : public Person\n{\npublic:\n    \/\/\u6784\u9020\u51fd\u6570\n    Student(const string& name, int id)\n        :Person(name) \/\/\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u57fa\u7c7b\u7684\u90a3\u4e00\u90e8\u5206\u6210\u5458\n        , _id(id) \/\/\u521d\u59cb\u5316\u6d3e\u751f\u7c7b\u7684\u6210\u5458\n    {\n        cout << \"Student()\" << endl;\n    }\n    \/\/\u62f7\u8d1d\u6784\u9020\u51fd\u6570\n    Student(const Student& s)\n        :Person(s) \/\/\u8c03\u7528\u57fa\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u5b8c\u6210\u57fa\u7c7b\u6210\u5458\u7684\u62f7\u8d1d\u6784\u9020\n        , _id(s._id) \/\/\u62f7\u8d1d\u6784\u9020\u6d3e\u751f\u7c7b\u7684\u6210\u5458\n    {\n        cout << \"Student(const Student& s)\" << endl;\n    }\n    \/\/\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570\n    Student& operator=(const Student& s)\n    {\n        cout << \"Student& operator=(const Student& s)\" << endl;\n        if (this != &s)\n        {\n            Person::operator=(s); \/\/\u8c03\u7528\u57fa\u7c7b\u7684operator=\u5b8c\u6210\u57fa\u7c7b\u6210\u5458\u7684\u8d4b\u503c\n            _id = s._id; \/\/\u5b8c\u6210\u6d3e\u751f\u7c7b\u6210\u5458\u7684\u8d4b\u503c\n        }\n        return *this;\n    }\n    \/\/\u6790\u6784\u51fd\u6570\n    ~Student()\n    {\n        cout << \"~Student()\" << endl;\n        \/\/\u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u4f1a\u5728\u88ab\u8c03\u7528\u5b8c\u6210\u540e\u81ea\u52a8\u8c03\u7528\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\n    }\nprivate:\n    int _id; \/\/\u5b66\u53f7\n};<\/code><\/pre>\n\n\n\n
        \u6d3e\u751f\u7c7b\u4e0e\u666e\u901a\u7c7b\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\u7684\u4e0d\u540c\u4e4b\u5904\u6982\u62ec\u4e3a\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n
          \n
        1. \u6d3e\u751f\u7c7b\u7684\u6784\u9020\u51fd\u6570\u88ab\u8c03\u7528\u65f6\uff0c\u4f1a\u81ea\u52a8\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u57fa\u7c7b\u7684\u90a3\u4e00\u90e8\u5206\u6210\u5458\uff0c\u5982\u679c\u57fa\u7c7b\u5f53\u4e2d\u6ca1\u6709\u9ed8\u8ba4\u7684\u6784\u9020\u51fd\u6570\uff0c\u5219\u5fc5\u987b\u5728\u6d3e\u751f\u7c7b\u6784\u9020\u51fd\u6570\u7684\u521d\u59cb\u5316\u5217\u8868\u5f53\u4e2d\u663e\u793a\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002<\/li>\n\n\n\n
        2. \u6d3e\u751f\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u5fc5\u987b\u8c03\u7528\u57fa\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u5b8c\u6210\u57fa\u7c7b\u6210\u5458\u7684\u62f7\u8d1d\u6784\u9020\u3002<\/li>\n\n\n\n
        3. \u6d3e\u751f\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570\u5fc5\u987b\u8c03\u7528\u57fa\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570\u5b8c\u6210\u57fa\u7c7b\u6210\u5458\u7684\u8d4b\u503c\u3002<\/li>\n\n\n\n
        4. \u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u4f1a\u5728\u88ab\u8c03\u7528\u5b8c\u6210\u540e\u81ea\u52a8\u8c03\u7528\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\u6e05\u7406\u57fa\u7c7b\u6210\u5458\u3002<\/li>\n\n\n\n
        5. \u6d3e\u751f\u7c7b\u5bf9\u8c61\u521d\u59cb\u5316\u65f6\uff0c\u4f1a\u5148\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u518d\u8c03\u7528\u6d3e\u751f\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002<\/li>\n\n\n\n
        6. \u6d3e\u751f\u7c7b\u5bf9\u8c61\u5728\u6790\u6784\u65f6\uff0c\u4f1a\u5148\u8c03\u7528\u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u518d\u8c03\u7528\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\u3002<\/li>\n<\/ol>\n\n\n\n
          \u5728\u7f16\u5199\u6d3e\u751f\u7c7b\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n\n\n\n
            \n
          1. \u6d3e\u751f\u7c7b\u548c\u57fa\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570\u56e0\u4e3a\u51fd\u6570\u540d\u76f8\u540c\u6784\u6210\u9690\u85cf\uff0c\u56e0\u6b64\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u8c03\u7528\u57fa\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u4f5c\u7528\u57df\u9650\u5b9a\u7b26\u8fdb\u884c\u6307\u5b9a\u8c03\u7528\u3002<\/li>\n\n\n\n
          2. \u7531\u4e8e\u591a\u6001\u7684\u67d0\u4e9b\u539f\u56e0\uff0c\u4efb\u4f55\u7c7b\u7684\u6790\u6784\u51fd\u6570\u540d\u90fd\u4f1a\u88ab\u7edf\u4e00\u5904\u7406\u4e3adestructor();<\/code>\u3002\u56e0\u6b64\uff0c\u6d3e\u751f\u7c7b\u548c\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\u4e5f\u4f1a\u56e0\u4e3a\u51fd\u6570\u540d\u76f8\u540c\u6784\u6210\u9690\u85cf\uff0c\u82e5\u662f\u6211\u4eec\u9700\u8981\u5728\u67d0\u5904\u8c03\u7528\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\uff0c\u90a3\u4e48\u5c31\u8981\u4f7f\u7528\u4f5c\u7528\u57df\u9650\u5b9a\u7b26\u8fdb\u884c\u6307\u5b9a\u8c03\u7528\u3002<\/li>\n\n\n\n
          3. \u5728\u6d3e\u751f\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u548coperator=<\/code>\u5f53\u4e2d\u8c03\u7528\u57fa\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u548coperator=<\/code>\u7684\u4f20\u53c2\u65b9\u5f0f\u662f\u4e00\u4e2a\u5207\u7247\u884c\u4e3a\uff0c\u90fd\u662f\u5c06\u6d3e\u751f\u7c7b\u5bf9\u8c61\u76f4\u63a5\u8d4b\u503c\u7ed9\u57fa\u7c7b\u7684\u5f15\u7528\u3002<\/li>\n<\/ol>\n\n\n\n
            \u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong><\/p>\n\n\n\n
            \u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3001\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u3001\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570\u6211\u4eec\u90fd\u53ef\u4ee5\u5728\u6d3e\u751f\u7c7b\u5f53\u4e2d\u81ea\u884c\u8fdb\u884c\u8c03\u7528\uff0c\u800c\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\u662f\u5f53\u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u88ab\u8c03\u7528\u540e\u7531\u7f16\u8bd1\u5668\u81ea\u52a8\u8c03\u7528\u7684\uff0c\u6211\u4eec\u82e5\u662f\u81ea\u884c\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u5c31\u4f1a\u5bfc\u81f4\u57fa\u7c7b\u88ab\u6790\u6784\u591a\u6b21\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
            \u6211\u4eec\u77e5\u9053\uff0c\u521b\u5efa\u6d3e\u751f\u7c7b\u5bf9\u8c61\u65f6\u662f\u5148\u521b\u5efa\u7684\u57fa\u7c7b\u6210\u5458\u518d\u521b\u5efa\u7684\u6d3e\u751f\u7c7b\u6210\u5458\uff0c\u7f16\u8bd1\u5668\u4e3a\u4e86\u4fdd\u8bc1\u6790\u6784\u65f6\u5148\u6790\u6784\u6d3e\u751f\u7c7b\u6210\u5458\u518d\u6790\u6784\u57fa\u7c7b\u6210\u5458\u7684\u987a\u5e8f\u6790\u6784\uff0c\u6240\u4ee5\u7f16\u8bd1\u5668\u4f1a\u5728\u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u88ab\u8c03\u7528\u540e\u81ea\u52a8\u8c03\u7528\u57fa\u7c7b\u7684\u6790\u6784\u51fd\u6570\u3002<\/p>\n\n\n\n
            \u53cb\u5143\u4e0e\u7ee7\u627f<\/h2>\n\n\n\n
            \u53cb\u5143\u5173\u7cfb\u4e0d\u80fd\u7ee7\u627f\uff0c\u4e5f\u5c31\u662f\u8bf4\u57fa\u7c7b\u7684\u53cb\u5143\u53ef\u4ee5\u8bbf\u95ee\u57fa\u7c7b\u7684\u79c1\u6709\u548c\u4fdd\u62a4\u6210\u5458\uff0c\u4f46\u662f\u4e0d\u80fd\u8bbf\u95ee\u6d3e\u751f\u7c7b\u7684\u79c1\u6709\u548c\u4fdd\u62a4\u6210\u5458\u3002<\/p>\n\n\n\n
            \u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u4e2dDisplay\u51fd\u6570\u662f\u57fa\u7c7bPerson\u7684\u53cb\u5143\uff0c\u4f46\u662fDisplay\u51fd\u6570\u4e0d\u662f\u6d3e\u751f\u7c7bStudent\u7684\u53cb\u5143\uff0c\u5373Display\u51fd\u6570\u65e0\u6cd5\u8bbf\u95ee\u6d3e\u751f\u7c7bStudent\u5f53\u4e2d\u7684\u79c1\u6709\u548c\u4fdd\u62a4\u6210\u5458\u3002<\/p>\n\n\n\n
            #include <iostream>\n#include <string>\nusing namespace std;\nclass Student;\nclass Person\n{\npublic:\n    \/\/\u58f0\u660eDisplay\u662fPerson\u7684\u53cb\u5143\n    friend void Display(const Person& p, const Student& s);\nprotected:\n    string _name; \/\/\u59d3\u540d\n};\nclass Student : public Person\n{\nprotected:\n    int _id; \/\/\u5b66\u53f7\n};\nvoid Display(const Person& p, const Student& s)\n{\n    cout << p._name << endl; \/\/\u53ef\u4ee5\u8bbf\u95ee\n    cout << s._id << endl; \/\/\u65e0\u6cd5\u8bbf\u95ee\n}\nint main()\n{\n    Person p;\n    Student s;\n    Display(p, s);\n    return 0;\n}<\/code><\/pre>\n\n\n\n
            \u82e5\u60f3\u8ba9Display\u51fd\u6570\u4e5f\u80fd\u591f\u8bbf\u95ee\u6d3e\u751f\u7c7bStudent\u7684\u79c1\u6709\u548c\u4fdd\u62a4\u6210\u5458\uff0c\u53ea\u80fd\u5728\u6d3e\u751f\u7c7bStudent\u5f53\u4e2d\u8fdb\u884c\u53cb\u5143\u58f0\u660e\u3002<\/p>\n\n\n\n
            class Student : public Person\n{\npublic:\n    \/\/\u58f0\u660eDisplay\u662fStudent\u7684\u53cb\u5143\n    friend void Display(const Person& p, const Student& s);\nprotected:\n    int _id; \/\/\u5b66\u53f7\n};<\/code><\/pre>\n\n\n\n
            \u7ee7\u627f\u4e0e\u9759\u6001\u6210\u5458<\/h2>\n\n\n\n
            \u82e5\u57fa\u7c7b\u5f53\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2astatic\u9759\u6001\u6210\u5458\u53d8\u91cf\uff0c\u5219\u5728\u6574\u4e2a\u7ee7\u627f\u4f53\u7cfb\u91cc\u9762\u53ea\u6709\u4e00\u4e2a\u8be5\u9759\u6001\u6210\u5458\u3002\u65e0\u8bba\u6d3e\u751f\u51fa\u591a\u5c11\u4e2a\u5b50\u7c7b\uff0c\u90fd\u53ea\u6709\u4e00\u4e2astatic\u6210\u5458\u5b9e\u4f8b\u3002<\/p>\n\n\n\n
            \u4f8b\u5982\uff0c\u5728\u57fa\u7c7bPerson\u5f53\u4e2d\u5b9a\u4e49\u4e86\u9759\u6001\u6210\u5458\u53d8\u91cf_count\uff0c\u5c3d\u7ba1Person\u53c8\u7ee7\u627f\u4e86\u6d3e\u751f\u7c7bStudent\u548cGraduate\uff0c\u4f46\u5728\u6574\u4e2a\u7ee7\u627f\u4f53\u7cfb\u91cc\u9762\u53ea\u6709\u4e00\u4e2a\u8be5\u9759\u6001\u6210\u5458\u3002<\/p>\n\n\n\n
            \u6211\u4eec\u82e5\u662f\u5728\u57fa\u7c7bPerson\u7684\u6784\u9020\u51fd\u6570\u548c\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u5f53\u4e2d\u8bbe\u7f6e_count\u8fdb\u884c\u81ea\u589e\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u53ef\u4ee5\u968f\u65f6\u901a\u8fc7_count\u6765\u83b7\u53d6\u8be5\u65f6\u523b\u5df2\u7ecf\u5b9e\u4f8b\u5316\u7684Person\u3001Student\u4ee5\u53caGraduate\u5bf9\u8c61\u7684\u603b\u4e2a\u6570\u3002<\/p>\n\n\n\n
            #include <iostream>\n#include <string>\nusing namespace std;\n\/\/\u57fa\u7c7b\nclass Person\n{\npublic:\n    Person() \n    { \n        _count++; \n    }\n    Person(const Person& p) \n    {\n        _count++;\n    }\nprotected:\n    string _name; \/\/\u59d3\u540d\npublic:\n    static int _count; \/\/\u7edf\u8ba1\u4eba\u7684\u4e2a\u6570\u3002\n};\nint Person::_count = 0; \/\/\u9759\u6001\u6210\u5458\u53d8\u91cf\u5728\u7c7b\u5916\u8fdb\u884c\u521d\u59cb\u5316\n\/\/\u6d3e\u751f\u7c7b\nclass Student : public Person\n{\nprotected:\n    int _stuNum; \/\/\u5b66\u53f7\n};\n\/\/\u6d3e\u751f\u7c7b\nclass Graduate : public Person\n{\nprotected:\n    string _seminarCourse; \/\/\u7814\u7a76\u79d1\u76ee\n};\nint main()\n{\n    Student s1;\n    Student s2(s1);\n    Student s3;\n    Graduate s4;\n    cout << Person::_count << endl; \/\/4\n    cout << Student::_count << endl; \/\/4\n    return 0;\n}<\/code><\/pre>\n\n\n\n
            \u6b64\u65f6\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7\u6253\u5370Person\u7c7b\u548cStudent\u7c7b\u5f53\u4e2d\u9759\u6001\u6210\u5458_count\u7684\u5730\u5740\u6765\u8bc1\u660e\u5b83\u4eec\u5c31\u662f\u540c\u4e00\u4e2a\u53d8\u91cf\u3002<\/p>\n\n\n\n
            cout << &Person::_count << endl; \/\/00F1F320\ncout << &Student::_count << endl; \/\/00F1F320<\/code><\/pre>\n\n\n\n
            \u7ee7\u627f\u7684\u65b9\u5f0f<\/h2>\n\n\n\n
            \n
            \u5355\u7ee7\u627f\uff1a\u4e00\u4e2a\u5b50\u7c7b\u53ea\u6709\u4e00\u4e2a\u76f4\u63a5\u7236\u7c7b\u65f6\u79f0\u8fd9\u4e2a\u7ee7\u627f\u5173\u7cfb\u4e3a\u5355\u7ee7\u627f\u3002<\/p>\n<\/blockquote>\n\n\n\n
            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
            \n
            \u591a\u7ee7\u627f\uff1a\u4e00\u4e2a\u5b50\u7c7b\u6709\u4e24\u4e2a\u6216\u4e24\u4e2a\u4ee5\u4e0a\u76f4\u63a5\u7236\u7c7b\u65f6\u79f0\u8fd9\u4e2a\u7ee7\u627f\u5173\u7cfb\u4e3a\u591a\u7ee7\u627f\u3002<\/p>\n<\/blockquote>\n\n\n\n
            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
            \n
            \u83f1\u5f62\u7ee7\u627f\uff1a\u83f1\u5f62\u7ee7\u627f\u662f\u591a\u7ee7\u627f\u7684\u4e00\u79cd\u7279\u6b8a\u60c5\u51b5\u3002<\/p>\n<\/blockquote>\n\n\n\n
            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
            \u4ece\u83f1\u5f62\u7ee7\u627f\u7684\u6a21\u578b\u6784\u9020\u5c31\u53ef\u4ee5\u770b\u51fa\uff0c\u83f1\u5f62\u7ee7\u627f\u7684\u7ee7\u627f\u65b9\u5f0f\u5b58\u5728\u6570\u636e\u5197\u4f59\u548c\u4e8c\u4e49\u6027\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
            \u4f8b\u5982\uff0c\u5bf9\u4e8e\u4ee5\u4e0a\u83f1\u5f62\u7ee7\u627f\u7684\u6a21\u578b\uff0c\u5f53\u6211\u4eec\u5b9e\u4f8b\u5316\u51fa\u4e00\u4e2aAssistant\u5bf9\u8c61\u540e\uff0c\u8bbf\u95ee\u6210\u5458\u65f6\u5c31\u4f1a\u51fa\u73b0\u4e8c\u4e49\u6027\u95ee\u9898\u3002<\/p>\n\n\n\n
            #include <iostream>\n#include <string>\nusing namespace std;\nclass Person\n{\npublic:\n    string _name; \/\/\u59d3\u540d\n};\nclass Student : public Person\n{\nprotected:\n    int _num; \/\/\u5b66\u53f7\n};\nclass Teacher : public Person\n{\nprotected:\n    int _id; \/\/\u804c\u5de5\u7f16\u53f7\n};\nclass Assistant : public Student, public Teacher\n{\nprotected:\n    string _majorCourse; \/\/\u4e3b\u4fee\u8bfe\u7a0b\n};\nint main()\n{\n    Assistant a;\n    a._name = \"peter\"; \/\/\u4e8c\u4e49\u6027\uff1a\u65e0\u6cd5\u660e\u786e\u77e5\u9053\u8981\u8bbf\u95ee\u54ea\u4e00\u4e2a_name\n    return 0;\n}<\/code><\/pre>\n\n\n\n
            Assistant\u5bf9\u8c61\u662f\u591a\u7ee7\u627f\u7684Student\u548cTeacher\uff0c\u800cStudent\u548cTeacher\u5f53\u4e2d\u90fd\u7ee7\u627f\u4e86Person\uff0c\u56e0\u6b64Student\u548cTeacher\u5f53\u4e2d\u90fd\u6709_name\u6210\u5458\uff0c\u82e5\u662f\u76f4\u63a5\u8bbf\u95eeAssistant\u5bf9\u8c61\u7684_name\u6210\u5458\u4f1a\u51fa\u73b0\u8bbf\u95ee\u4e0d\u660e\u786e\u7684\u62a5\u9519\u3002<\/p>\n\n\n\n
            \u5bf9\u4e8e\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u663e\u793a\u6307\u5b9a\u8bbf\u95eeAssistant\u54ea\u4e2a\u7236\u7c7b\u7684_name\u6210\u5458\u3002<\/p>\n\n\n\n
            \/\/\u663e\u793a\u6307\u5b9a\u8bbf\u95ee\u54ea\u4e2a\u7236\u7c7b\u7684\u6210\u5458\na.Student::_name = \"\u5f20\u540c\u5b66\";\na.Teacher::_name = \"\u5f20\u8001\u5e08\";<\/code><\/pre>\n\n\n\n
            \u867d\u7136\u8be5\u65b9\u6cd5\u53ef\u4ee5\u89e3\u51b3\u4e8c\u4e49\u6027\u7684\u95ee\u9898\uff0c\u4f46\u4ecd\u7136\u4e0d\u80fd\u89e3\u51b3\u6570\u636e\u5197\u4f59\u7684\u95ee\u9898\u3002\u56e0\u4e3a\u5728Assistant\u7684\u5bf9\u8c61\u7684Person\u6210\u5458\u59cb\u7ec8\u4f1a\u5b58\u5728\u4e24\u4efd\u3002\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
            \u83f1\u5f62\u865a\u62df\u7ee7\u627f<\/h2>\n\n\n\n
            \u4e3a\u4e86\u89e3\u51b3\u83f1\u5f62\u7ee7\u627f\u7684\u4e8c\u4e49\u6027\u548c\u6570\u636e\u5197\u4f59\u95ee\u9898\uff0c\u51fa\u73b0\u4e86\u865a\u62df\u7ee7\u627f\u3002\u5982\u524d\u9762\u8bf4\u5230\u7684\u83f1\u5f62\u7ee7\u627f\u5173\u7cfb\uff0c\u5728Student\u548cTeacher\u7ee7\u627fPerson\u662f\u4f7f\u7528\u865a\u62df\u7ee7\u627f\uff0c\u5373\u53ef\u89e3\u51b3\u95ee\u9898\u3002\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
            \u865a\u62df\u7ee7\u627f\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
            #include <iostream>\n#include <string>\nusing namespace std;\nclass Person\n{\npublic:\n    string _name; \/\/\u59d3\u540d\n};\nclass Student : virtual public Person \/\/\u865a\u62df\u7ee7\u627f\n{\nprotected:\n    int _num; \/\/\u5b66\u53f7\n};\nclass Teacher : virtual public Person \/\/\u865a\u62df\u7ee7\u627f\n{\nprotected:\n    int _id; \/\/\u804c\u5de5\u7f16\u53f7\n};\nclass Assistant : public Student, public Teacher\n{\nprotected:\n    string _majorCourse; \/\/\u4e3b\u4fee\u8bfe\u7a0b\n};\nint main()\n{\n    Assistant a;\n    a._name = \"peter\"; \/\/\u65e0\u4e8c\u4e49\u6027\n    return 0;\n}<\/code><\/pre>\n\n\n\n
            \u6b64\u65f6\u5c31\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95eeAssistant\u5bf9\u8c61\u7684_name\u6210\u5458\u4e86\uff0c\u5e76\u4e14\u4e4b\u540e\u5c31\u7b97\u6211\u4eec\u6307\u5b9a\u8bbf\u95eeAssistant\u7684Student\u7236\u7c7b\u548cTeacher\u7236\u7c7b\u7684_name\u6210\u5458\uff0c\u8bbf\u95ee\u5230\u7684\u90fd\u662f\u540c\u4e00\u4e2a\u7ed3\u679c\uff0c\u89e3\u51b3\u4e86\u4e8c\u4e49\u6027\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
            cout << a.Student::_name << endl; \/\/peter\ncout << a.Teacher::_name << endl; \/\/peter<\/code><\/pre>\n\n\n\n
            \u800c\u6211\u4eec\u6253\u5370Assistant\u7684Student\u7236\u7c7b\u548cTeacher\u7236\u7c7b\u7684_name\u6210\u5458\u7684\u5730\u5740\u65f6\uff0c\u663e\u793a\u7684\u4e5f\u662f\u540c\u4e00\u4e2a\u5730\u5740\uff0c\u89e3\u51b3\u4e86\u6570\u636e\u5197\u4f59\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
            cout << &a.Student::_name << endl; \/\/0136F74C\ncout << &a.Teacher::_name << endl; \/\/0136F74C<\/code><\/pre>\n\n\n\n
            \u83f1\u5f62\u865a\u62df\u7ee7\u627f\u539f\u7406<\/h2>\n\n\n\n
            \n
            \u5728\u6b64\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u770b\u770b\u4e0d\u4f7f\u7528\u83f1\u5f62\u865a\u62df\u7ee7\u627f\u65f6\uff0c\u4ee5\u4e0b\u83f1\u5f62\u7ee7\u627f\u5f53\u4e2dD\u7c7b\u5bf9\u8c61\u7684\u5404\u4e2a\u6210\u5458\u5728\u5185\u5b58\u5f53\u4e2d\u7684\u5206\u5e03\u60c5\u51b5\u3002<\/p>\n<\/blockquote>\n\n\n\n
            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
            \u6d4b\u8bd5\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
            #include <iostream>\nusing namespace std;\nclass A\n{\npublic:\n    int _a;\n};\nclass B : public A\n{\npublic:\n    int _b;\n};\nclass C : public A\n{\npublic:\n    int _c;\n};\nclass D : public B, public C\n{\npublic:\n    int _d;\n};\nint main()\n{\n    D d;\n    d.B::_a = 1;\n    d.C::_a = 2;\n    d._b = 3;\n    d._c = 4;\n    d._d = 5;\n    return 0;\n}<\/code><\/pre>\n\n\n\n
            \u901a\u8fc7\u5185\u5b58\u7a97\u53e3\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230D\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u5404\u4e2a\u6210\u5458\u5728\u5185\u5b58\u5f53\u4e2d\u7684\u5206\u5e03\u60c5\u51b5\u5982\u4e0b\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
            \u4e5f\u5c31\u662f\u8bf4\uff0cD\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u5404\u4e2a\u6210\u5458\u5728\u5185\u5b58\u5f53\u4e2d\u7684\u5206\u5e03\u60c5\u51b5\u5982\u4e0b\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
            \u8fd9\u91cc\u5c31\u53ef\u4ee5\u770b\u51fa\u4e3a\u4ec0\u4e48\u83f1\u5f62\u7ee7\u627f\u5bfc\u81f4\u4e86\u6570\u636e\u5197\u4f59\u548c\u4e8c\u4e49\u6027\uff0c\u6839\u672c\u539f\u56e0\u5c31\u662fD\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u542b\u6709\u4e24\u4e2a_a\u6210\u5458\u3002<\/p>\n\n\n\n
            \n
            \u73b0\u5728\u6211\u4eec\u518d\u6765\u770b\u770b\u4f7f\u7528\u83f1\u5f62\u865a\u62df\u7ee7\u627f\u65f6\uff0c\u4ee5\u4e0b\u83f1\u5f62\u7ee7\u627f\u5f53\u4e2dD\u7c7b\u5bf9\u8c61\u7684\u5404\u4e2a\u6210\u5458\u5728\u5185\u5b58\u5f53\u4e2d\u7684\u5206\u5e03\u60c5\u51b5\u3002<\/p>\n<\/blockquote>\n\n\n\n
            \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
            \u6d4b\u8bd5\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
            #include <iostream>\nusing namespace std;\nclass A\n{\npublic:\n    int _a;\n};\nclass B : virtual public A\n{\npublic:\n    int _b;\n};\nclass C : virtual public A\n{\npublic:\n    int _c;\n};\nclass D : public B, public C\n{\npublic:\n    int _d;\n};\nint main()\n{\n    D d;\n    d.B::_a = 1;\n    d.C::_a = 2;\n    d._b = 3;\n    d._c = 4;\n    d._d = 5;\n    return 0;\n}<\/code><\/pre>\n\n\n\n
            \u901a\u8fc7\u5185\u5b58\u7a97\u53e3\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230D\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u5404\u4e2a\u6210\u5458\u5728\u5185\u5b58\u5f53\u4e2d\u7684\u5206\u5e03\u60c5\u51b5\u5982\u4e0b\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
            \u5176\u4e2dD\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u7684_a\u6210\u5458\u88ab\u653e\u5230\u4e86\u6700\u540e\uff0c\u800c\u5728\u539f\u6765\u5b58\u653e\u4e24\u4e2a_a\u6210\u5458\u7684\u4f4d\u7f6e\u53d8\u6210\u4e86\u4e24\u4e2a\u6307\u9488\uff0c\u8fd9\u4e24\u4e2a\u6307\u9488\u53eb\u865a\u57fa\u8868\u6307\u9488\uff0c\u5b83\u4eec\u5206\u522b\u6307\u5411\u4e00\u4e2a\u865a\u57fa\u8868\u3002<\/p>\n\n\n\n
            \u865a\u57fa\u8868\u4e2d\u5305\u542b\u4e24\u4e2a\u6570\u636e\uff0c\u7b2c\u4e00\u4e2a\u6570\u636e\u662f\u4e3a\u591a\u6001\u7684\u865a\u8868\u9884\u7559\u7684\u5b58\u504f\u79fb\u91cf\u7684\u4f4d\u7f6e\uff08\u8fd9\u91cc\u6211\u4eec\u4e0d\u5fc5\u5173\u5fc3\uff09\uff0c\u7b2c\u4e8c\u4e2a\u6570\u636e\u5c31\u662f\u5f53\u524d\u7c7b\u5bf9\u8c61\u4f4d\u7f6e\u8ddd\u79bb\u516c\u5171\u865a\u57fa\u7c7b\u7684\u504f\u79fb\u91cf\u3002<\/p>\n\n\n\n
            \u4e5f\u5c31\u662f\u8bf4\uff0c\u8fd9\u4e24\u4e2a\u6307\u9488\u7ecf\u8fc7\u4e00\u7cfb\u5217\u7684\u8ba1\u7b97\uff0c\u6700\u7ec8\u90fd\u53ef\u4ee5\u627e\u5230\u6210\u5458_a\u3002\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
            \u6211\u4eec\u82e5\u662f\u5c06D\u7c7b\u5bf9\u8c61\u8d4b\u503c\u7ed9B\u7c7b\u5bf9\u8c61\uff0c\u5728\u8fd9\u4e2a\u5207\u7247\u8fc7\u7a0b\u4e2d\uff0c\u5c31\u9700\u8981\u901a\u8fc7\u865a\u57fa\u8868\u4e2d\u7684\u7b2c\u4e8c\u4e2a\u6570\u636e\u627e\u5230\u516c\u5171\u865a\u57fa\u7c7bA\u7684\u6210\u5458\uff0c\u5f97\u5230\u5207\u7247\u540e\u8be5B\u7c7b\u5bf9\u8c61\u5728\u5185\u5b58\u4e2d\u4ecd\u7136\u4fdd\u6301\u8fd9\u79cd\u5206\u5e03\u60c5\u51b5\u3002<\/p>\n\n\n\n
            D d;\nB b = d; \/\/\u5207\u7247\u884c\u4e3a<\/code><\/pre>\n\n\n\n
            \u5f97\u5230\u5207\u7247\u540e\u8be5B\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u5404\u4e2a\u6210\u5458\u5728\u5185\u5b58\u5f53\u4e2d\u7684\u5206\u5e03\u60c5\u51b5\u5982\u4e0b\uff1a\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n\n\n\n
            \u5176\u4e2d\uff0c_a\u5bf9\u8c61\u4ecd\u7136\u5b58\u50a8\u5728\u8be5B\u7c7b\u5bf9\u8c61\u7684\u6700\u540e\u3002<\/p>\n\n\n\n
            \u7ee7\u627f\u7684\u603b\u7ed3\u548c\u53cd\u601d<\/h2>\n\n\n\n
            \u5f88\u591a\u4eba\u90fd\u8bf4C++\u8bed\u6cd5\u590d\u6742\uff0c\u5176\u5b9e\u591a\u7ee7\u627f\u5c31\u662f\u4e00\u4e2a\u4f53\u73b0\u3002\u6709\u4e86\u591a\u7ee7\u627f\uff0c\u5c31\u53ef\u80fd\u5b58\u5728\u83f1\u5f62\u7ee7\u627f\uff0c\u6709\u4e86\u83f1\u5f62\u7ee7\u627f\u5c31\u6709\u83f1\u5f62\u865a\u62df\u7ee7\u627f\uff0c\u5e95\u5c42\u5b9e\u73b0\u5c31\u5f88\u590d\u6742\u3002\u6240\u4ee5\u4e00\u822c\u4e0d\u5efa\u8bae\u8bbe\u8ba1\u51fa\u83f1\u5f62\u7ee7\u627f\uff0c\u5426\u5219\u4ee3\u7801\u5728\u590d\u6742\u5ea6\u53ca\u6027\u80fd\u4e0a\u90fd\u5bb9\u6613\u51fa\u73b0\u95ee\u9898\uff0c\u5f53\u83f1\u5f62\u7ee7\u627f\u51fa\u95ee\u9898\u65f6\u96be\u4ee5\u5206\u6790\uff0c\u5e76\u4e14\u4f1a\u6709\u4e00\u5b9a\u7684\u6548\u7387\u5f71\u54cd\u3002<\/p>\n\n\n\n
            \u591a\u7ee7\u627f\u53ef\u4ee5\u8ba4\u4e3a\u662fC++\u7684\u7f3a\u9677\u4e4b\u4e00\uff0c\u5f88\u591a\u540e\u6765\u7684OO(Object Oriented)\u8bed\u8a00\u90fd\u6ca1\u6709\u591a\u7ee7\u627f\uff0c\u5982Java\u3002<\/p>\n\n\n\n
            \n
            \u7ee7\u627f\u548c\u7ec4\u5408<\/p>\n<\/blockquote>\n\n\n\n
            \u7ee7\u627f\u662f\u4e00\u79cdis-a\u7684\u5173\u7cfb\uff0c\u4e5f\u5c31\u662f\u8bf4\u6bcf\u4e2a\u6d3e\u751f\u7c7b\u5bf9\u8c61\u90fd\u662f\u4e00\u4e2a\u57fa\u7c7b\u5bf9\u8c61\uff1b\u800c\u7ec4\u5408\u662f\u4e00\u79cdhas-a\u7684\u5173\u7cfb\uff0c\u82e5\u662fB\u7ec4\u5408\u4e86A\uff0c\u90a3\u4e48\u6bcf\u4e2aB\u5bf9\u8c61\u4e2d\u90fd\u6709\u4e00\u4e2aA\u5bf9\u8c61\u3002<\/p>\n\n\n\n
            \u4f8b\u5982\uff0c\u8f66\u7c7b\u548c\u5b9d\u9a6c\u7c7b\u5c31\u662fis-a\u7684\u5173\u7cfb\uff0c\u5b83\u4eec\u4e4b\u95f4\u9002\u5408\u4f7f\u7528\u7ee7\u627f\u3002<\/p>\n\n\n\n
            class Car\n{\nprotected:\n    string _colour; \/\/\u989c\u8272\n    string _num; \/\/\u8f66\u724c\u53f7\n};\nclass BMW : public Car\n{\npublic:\n    void Drive()\n    {\n        cout << \"this is BMW\" << endl;\n    }\n};<\/code><\/pre>\n\n\n\n
            \u800c\u8f66\u548c\u8f6e\u80ce\u4e4b\u95f4\u5c31\u662fhas-a\u7684\u5173\u7cfb\uff0c\u5b83\u4eec\u4e4b\u95f4\u5219\u9002\u5408\u4f7f\u7528\u7ec4\u5408\u3002<\/p>\n\n\n\n
            class Tire\n{\nprotected:\n    string _brand; \/\/\u54c1\u724c\n    size_t _size; \/\/\u5c3a\u5bf8\n};\nclass Car\n{\nprotected:\n    string _colour; \/\/\u989c\u8272\n    string _num; \/\/\u8f66\u724c\u53f7\n    Tire _t; \/\/\u8f6e\u80ce\n};<\/code><\/pre>\n\n\n\n
            \n
            \u82e5\u662f\u4e24\u4e2a\u7c7b\u4e4b\u95f4\u65e2\u53ef\u4ee5\u770b\u4f5cis-a\u7684\u5173\u7cfb\uff0c\u53c8\u53ef\u4ee5\u770b\u4f5chas-a\u7684\u5173\u7cfb\uff0c\u5219\u4f18\u5148\u4f7f\u7528\u7ec4\u5408\u3002<\/p>\n<\/blockquote>\n\n\n\n
            \u539f\u56e0\u5982\u4e0b\uff1a<\/p>\n\n\n\n
              \n
            1. \u7ee7\u627f\u5141\u8bb8\u4f60\u6839\u636e\u57fa\u7c7b\u7684\u5b9e\u73b0\u6765\u5b9a\u4e49\u6d3e\u751f\u7c7b\u7684\u5b9e\u73b0\uff0c\u8fd9\u79cd\u901a\u8fc7\u751f\u6210\u6d3e\u751f\u7c7b\u7684\u590d\u7528\u901a\u5e38\u88ab\u79f0\u4e3a\u767d\u7bb1\u590d\u7528(White-box
              reuse)\u3002\u672f\u8bed\u201c\u767d\u7bb1\u201d\u662f\u76f8\u5bf9\u53ef\u89c6\u6027\u800c\u8a00\uff1a\u5728\u7ee7\u627f\u65b9\u5f0f\u4e2d\uff0c\u57fa\u7c7b\u7684\u5185\u90e8\u7ec6\u8282\u5bf9\u4e8e\u6d3e\u751f\u7c7b\u53ef\u89c1\uff0c\u7ee7\u627f\u4e00\u5b9a\u7a0b\u5ea6\u7834\u574f\u4e86\u57fa\u7c7b\u7684\u5c01\u88c5\uff0c\u57fa\u7c7b\u7684\u6539\u53d8\u5bf9\u6d3e\u751f\u7c7b\u6709\u5f88\u5927\u7684\u5f71\u54cd\uff0c\u6d3e\u751f\u7c7b\u548c\u57fa\u7c7b\u95f4\u7684\u4f9d\u8d56\u6027\u5173\u7cfb\u5f88\u5f3a\uff0c\u8026\u5408\u5ea6\u9ad8\u3002<\/li>\n\n\n\n
            2. \u7ec4\u5408\u662f\u7c7b\u7ee7\u627f\u4e4b\u5916\u7684\u53e6\u4e00\u79cd\u590d\u7528\u9009\u62e9\uff0c\u65b0\u7684\u66f4\u590d\u6742\u7684\u529f\u80fd\u53ef\u4ee5\u901a\u8fc7\u7ec4\u88c5\u6216\u7ec4\u5408\u5bf9\u8c61\u6765\u83b7\u5f97\u3002\u5bf9\u8c61\u7ec4\u5408\u8981\u6c42\u88ab\u7ec4\u5408\u7684\u5bf9\u8c61\u5177\u6709\u826f\u597d\u5b9a\u4e49\u7684\u63a5\u53e3\uff0c\u8fd9\u79cd\u590d\u7528\u98ce\u683c\u88ab\u79f0\u4e4b\u4e3a\u9ed1\u7bb1\u590d\u7528(Black-box reuse)\uff0c\u56e0\u4e3a\u5bf9\u8c61\u7684\u5185\u90e8\u7ec6\u8282\u662f\u4e0d\u53ef\u89c1\u7684\uff0c\u5bf9\u8c61\u53ea\u4ee5\u201c\u9ed1\u7bb1\u201d\u7684\u5f62\u5f0f\u51fa\u73b0\uff0c\u7ec4\u5408\u7c7b\u4e4b\u95f4\u6ca1\u6709\u5f88\u5f3a\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u8026\u5408\u5ea6\u4f4e\uff0c\u4f18\u5148\u4f7f\u7528\u5bf9\u8c61\u7ec4\u5408\u6709\u52a9\u4e8e\u4f60\u4fdd\u6301\u6bcf\u4e2a\u7c7b\u88ab\u5c01\u88c5\u3002<\/li>\n\n\n\n
            3. \u5b9e\u9645\u4e2d\u5c3d\u91cf\u591a\u4f7f\u7528\u7ec4\u5408\uff0c\u7ec4\u5408\u7684\u8026\u5408\u5ea6\u4f4e\uff0c\u4ee3\u7801\u7ef4\u62a4\u6027\u597d\u3002\u4e0d\u8fc7\u7ee7\u627f\u4e5f\u662f\u6709\u7528\u6b66\u4e4b\u5730\u7684\uff0c\u6709\u4e9b\u5173\u7cfb\u5c31\u9002\u5408\u7528\u7ee7\u627f\uff0c\u53e6\u5916\u8981\u5b9e\u73b0\u591a\u6001\u4e5f\u5fc5\u987b\u8981\u7ee7\u627f\u3002\u82e5\u662f\u7c7b\u4e4b\u95f4\u7684\u5173\u7cfb\u65e2\u53ef\u4ee5\u7528\u7ee7\u627f\uff0c\u53c8\u53ef\u4ee5\u7528\u7ec4\u5408\uff0c\u5219\u4f18\u5148\u4f7f\u7528\u7ec4\u5408\u3002<\/li>\n<\/ol>\n\n\n\n
              \u76f8\u5173\u7b14\u8bd5\u9762\u8bd5\u9898<\/h2>\n\n\n\n
              \n
              \u4ec0\u4e48\u662f\u83f1\u5f62\u7ee7\u627f\uff1f\u83f1\u5f62\u7ee7\u627f\u7684\u95ee\u9898\u662f\u4ec0\u4e48\uff1f<\/p>\n<\/blockquote>\n\n\n\n
              \u83f1\u5f62\u7ee7\u627f\u662f\u591a\u7ee7\u627f\u7684\u4e00\u79cd\u7279\u6b8a\u60c5\u51b5\uff0c\u4e24\u4e2a\u5b50\u7c7b\u7ee7\u627f\u540c\u4e00\u4e2a\u7236\u7c7b\uff0c\u800c\u53c8\u6709\u5b50\u7c7b\u540c\u65f6\u7ee7\u627f\u8fd9\u4e24\u4e2a\u5b50\u7c7b\uff0c\u6211\u4eec\u79f0\u8fd9\u79cd\u7ee7\u627f\u4e3a\u83f1\u5f62\u7ee7\u627f\u3002
              \u83f1\u5f62\u7ee7\u627f\u56e0\u4e3a\u5b50\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u4f1a\u6709\u4e24\u4efd\u7236\u7c7b\u7684\u6210\u5458\uff0c\u56e0\u6b64\u4f1a\u5bfc\u81f4\u6570\u636e\u5197\u4f59\u548c\u4e8c\u4e49\u6027\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
              \n
              \u4ec0\u4e48\u662f\u83f1\u5f62\u865a\u62df\u7ee7\u627f\uff1f\u5982\u4f55\u89e3\u51b3\u6570\u636e\u5197\u4f59\u548c\u4e8c\u4e49\u6027\uff1f<\/p>\n<\/blockquote>\n\n\n\n
              \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/div><\/figure>\n\n\n\n
              \u83f1\u5f62\u865a\u62df\u7ee7\u627f\u662f\u6307\u5728\u83f1\u5f62\u7ee7\u627f\u7684\u8170\u90e8\u4f7f\u7528\u865a\u62df\u7ee7\u627f(virtual)\u7684\u7ee7\u627f\u65b9\u5f0f\uff0c\u83f1\u5f62\u865a\u62df\u7ee7\u627f\u5bf9\u4e8eD\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u91cd\u590d\u7684A\u7c7b\u6210\u5458\u53ea\u5b58\u50a8\u4e00\u4efd\uff0c\u7136\u540e\u91c7\u7528\u865a\u57fa\u8868\u6307\u9488\u548c\u865a\u57fa\u8868\u4f7f\u5f97D\u7c7b\u5bf9\u8c61\u5f53\u4e2d\u7ee7\u627f\u7684B\u7c7b\u548cC\u7c7b\u53ef\u4ee5\u627e\u5230\u81ea\u5df1\u7ee7\u627f\u7684A\u7c7b\u6210\u5458\uff0c\u4ece\u800c\u89e3\u51b3\u4e86\u6570\u636e\u5197\u4f59\u548c\u4e8c\u4e49\u6027\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n
              \n
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