{"id":188,"date":"2020-08-22T15:32:28","date_gmt":"2020-08-22T07:32:28","guid":{"rendered":"https:\/\/kishere.gq\/?p=188"},"modified":"2021-01-14T10:55:30","modified_gmt":"2021-01-14T02:55:30","slug":"c-%e7%9a%84%e7%bb%a7%e6%89%bf","status":"publish","type":"post","link":"https:\/\/blog.kishere.cn\/?p=188","title":{"rendered":"C++ \u7684\u7ee7\u627f"},"content":{"rendered":"

\u7ee7\u627f<\/h1>\n

\u4ee5\u524d, \u5728C\u8bed\u8a00\u65f6, \u6211\u4eec\u4e3a\u4e86\u5b9e\u73b0\u4ee3\u7801\u590d\u7528, \u4f7f\u7528\u4e86\u51fd\u6570\u6765\u5c01\u88c5\u4e00\u4e9b \u91cd\u590d\u64cd\u4f5c\u7684\u4ee3\u7801. \u800c\u5f53\u6211\u4eec\u8fc7\u6e21\u5230C++\u65f6, \u9762\u5411\u5bf9\u8c61\u7684\u7279\u6027\u4f7f\u5f97\u4ee3\u7801\u590d\u7528\u53d1\u751f\u4e86\u4e00\u4e9b\u56f0\u96be. \u5bf9\u4e8e\u4f7f\u7528\u7c7b\u8fdb\u884c\u5c01\u88c5\u7684\u4ee3\u7801, \u600e\u4e48\u5728\u53e6\u4e00\u4e2a\u7c7b\u4e2d\u8bbf\u95ee\u5b83\u4eec\u5462?\u8fd9\u5c31\u9700\u8981\u4f7f\u7528\u5230\u7ee7\u627f\u4e86.<\/p>\n

1.\u7ee7\u627f\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n
class Person{\npublic:\n    char[1024] gender; \n};\nclass Chinese:public Person { \/\/\u8fd9\u91ccChinese\u662f\u6d3e\u751f\u7c7b, Person\u662f\u57fa\u7c7b, \u7ee7\u627f\u65b9\u5f0f\u662fpublic\npublic: \n    int id;\n};\n<\/code><\/pre>\n
    \n
  • \u7ee7\u627f\u65f6, \u88ab\u7ee7\u627f\u7684\u7c7b\u53eb\u505a\u57fa\u7c7b<\/strong>, \u7ee7\u627f\u7684\u7c7b\u53eb\u505a\u6d3e\u751f\u7c7b<\/strong>.\u5f62\u8c61\u4e00\u70b9\u7684\u8bdd: \u57fa\u7c7b = \u7236\u7c7b, \u6d3e\u751f\u7c7b = \u5b50\u7c7b<\/strong>.<\/li>\n
  • \u7ee7\u627f\u65b9\u5f0f\u6709\u4e09\u79cd: public, protetced, private<\/strong>.
    \n\u4f7f\u7528\u4e0d\u540c\u7684\u7ee7\u627f\u65b9\u5f0f, \u6d3e\u751f\u7c7b\u80fd\u8bbf\u95ee\u57fa\u7c7b\u7684\u8303\u56f4\u4e5f\u4e0d\u4e00\u6837. \u5177\u4f53\u8303\u56f4\u53ef\u4ee5\u770b\u4e0b\u9762\u7684\u8868\u683c:<\/li>\n<\/ul>\n\n\n\n\n\n\n\n
    <\/th>\npublic\u7ee7\u627f<\/th>\nprotetced\u7ee7\u627f<\/th>\nprivate\u7ee7\u627f<\/th>\n<\/tr>\n<\/thead>\n
    \u57fa\u7c7b\u7684public\u6210\u5458<\/td>\n\u6d3e\u751f\u7c7b\u7684public\u6210\u5458<\/td>\n\u6d3e\u751f\u7c7b\u7684protetced\u6210\u5458<\/td>\n\u6d3e\u751f\u7c7b\u7684private\u6210\u5458<\/td>\n<\/tr>\n
    \u57fa\u7c7b\u7684protetced\u6210\u5458<\/td>\n\u6d3e\u751f\u7c7b\u7684protetced\u6210\u5458<\/td>\n\u6d3e\u751f\u7c7b\u7684protetced\u6210\u5458<\/td>\n\u6d3e\u751f\u7c7b\u7684private\u6210\u5458<\/td>\n<\/tr>\n
    \u57fa\u7c7b\u7684private\u6210\u5458<\/td>\n\u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1<\/td>\n\u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1<\/td>\n\u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \u4ece\u4e0a\u8868\u4e2d\u6211\u4eec\u53ef\u4ee5\u770b\u51fa, protetced\u6210\u5458\u548cprivate\u6210\u5458\u7684\u533a\u522b\u5c31\u4f53\u73b0\u5728\u7ee7\u627f\u4e2d<\/strong>. \u5982\u679c\u6ca1\u6709\u7ee7\u627f, \u4ed6\u4eec\u4e24\u4e2a\u6ca1\u6709\u4efb\u4f55\u533a\u522b, \u4f46\u6709\u4e86\u7ee7\u627f, protetced\u6210\u5458\u548cprivate\u6210\u5458\u4fbf\u6709\u4e86\u4e0d\u540c\u7684\u542b\u4e49. \u57fa\u7c7b\u7684private\u6210\u5458\u5728\u6d3e\u751f\u7c7b\u4e2d\u65e0\u8bba\u4ee5\u4f55\u79cd\u65b9\u5f0f\u7ee7\u627f, \u90fd\u662f\u4e0d\u53ef\u89c1\u7684. \u800cprotetced\u6210\u5458\u53ef\u4ee5\u901a\u8fc7\u7ee7\u627f\u8ba9\u6d3e\u751f\u7c7b\u8bbf\u95ee.<\/p>\n
    \u7ee7\u627f\u65b9\u5f0f\u53ef\u4ee5\u4e0d\u663e\u5f0f\u5199\u51fa<\/strong>, \u7f16\u8bd1\u5668\u4f1a\u6839\u636e\u4f7f\u7528\u7684\u5173\u952e\u5b57\u6765\u5224\u65ad\u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f: \u4f7f\u7528class\u65f6, \u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f\u662fprivate\u7ee7\u627f, \u4f7f\u7528struct\u65f6, \u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f\u65f6public\u7ee7\u627f.<\/p>\n
    2.\u57fa\u7c7b\u548c\u6d3e\u751f\u7c7b\u7684\u8d4b\u503c<\/h2>\n
    \u6d3e\u751f\u7c7b\u5bf9\u8c61\u7684\u5b9e\u4f8b\u53ef\u4ee5\u76f4\u63a5\u7ed9\u57fa\u7c7b\u5bf9\u8c61\u7684\u5b9e\u4f8b\u8d4b\u503c<\/strong>, \u6d3e\u751f\u7c7b\u5bf9\u8c61\u5b9e\u4f8b\u4f1a\u5c06\u7ee7\u627f\u81ea\u57fa\u7c7b\u7684\u90a3\u90e8\u5206\u6210\u5458\u7684\u503c\u8d4b\u503c\u7ed9\u57fa\u7c7b\u5bf9\u8c61\u5b9e\u4f8b.<\/p>\n
    Chinese ch;\nPerson p = ch;\nPerson* pp = &ch;\nPerson& ppp = ch;\n<\/code><\/pre>\n
    \u800c\u57fa\u7c7b\u5b9e\u4f8b\u4e0d\u80fd\u7ed9\u6d3e\u751f\u7c7b\u5b9e\u4f8b\u8d4b\u503c.<\/p>\n
    3.\u7ee7\u627f\u7684\u4f5c\u7528\u57df<\/h2>\n
    \u7ee7\u627f\u4e4b\u540e, \u6d3e\u751f\u7c7b\u548c\u57fa\u7c7b\u62e5\u6709\u5404\u81ea\u72ec\u7acb\u7684\u4f5c\u7528\u57df, \u4ed6\u4eec\u4e4b\u95f4\u7684\u6210\u5458\u53d8\u91cf\u76f8\u4e92\u4e4b\u95f4\u4e0d\u4f1a\u5f71\u54cd.(\u5373\u4f7f\u662f\u6d3e\u751f\u7c7b\u7ee7\u627f\u81ea\u539f\u6765\u57fa\u7c7b\u7684\u90e8\u5206, \u5728\u5b9e\u4f8b\u5316\u65f6\u4e5f\u4e0d\u4f1a\u4ece\u5df2\u7ecf\u5b9e\u4f8b\u5316\u7684\u57fa\u7c7b\u4e2d\u83b7\u53d6\u6570\u636e)
    \n\u4f46\u6709\u4e24\u79cd\u60c5\u51b5\u9664\u5916:<\/p>\n
      \n
    • \u7b2c\u4e00\u662f\u540c\u540d\u9690\u85cf. \u4e00\u65e6\u5728\u6d3e\u751f\u7c7b\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u548c\u57fa\u7c7b\u76f8\u540c\u540d\u5b57\u7684\u6210\u5458, \u5c31\u4f1a\u6784\u6210\u9690\u85cf. \u6d3e\u751f\u7c7b\u4f1a\u4f18\u5148\u8bbf\u95ee\u5728\u81ea\u5df1\u7684\u5b9a\u4e49\u57df\u4e2d\u5b9a\u4e49\u7684\u6210\u5458. \u5bf9\u4e8e\u6210\u5458\u51fd\u6570\u6765\u8bf4, \u53ea\u9700\u8981\u51fd\u6570\u540d\u76f8\u540c\u5c31\u4f1a\u6784\u6210\u540c\u540d\u9690\u85cf.<\/li>\n
    • \u7b2c\u4e8c\u4e2a\u662fstatic\u6210\u5458. \u57fa\u7c7b\u4e2d\u5982\u679c\u5b9a\u4e49\u4e86static\u6210\u5458\u90a3\u4e48\u6574\u4e2a\u7ee7\u627f\u4f53\u7cfb\u4e2d\u5c31\u53ea\u80fd\u6709\u4e00\u4e2a\u8fd9\u6837\u7684\u6210\u5458. \u65e0\u8bba\u6d3e\u751f\u51fa\u591a\u5c11\u4e2a\u5b50\u7c7b, \u90fd\u53ea\u80fd\u6709\u4e00\u4e2astatic\u6210\u5458\u5b9e\u4f8b<\/li>\n<\/ul>\n
      4.\u6d3e\u751f\u7c7b\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570<\/h2>\n
      \u5728\u7c7b\u548c\u5bf9\u8c61\u4e2d\u6211\u4eec\u90fd\u77e5\u9053\u67096\u4e2a\u9ed8\u8ba4\u6210\u5458\u51fd\u6570. \u7ee7\u627f\u8fc7\u540e\u7684\u6d3e\u751f\u7c7b, \u4ed6\u4eec\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\u5728\u4f7f\u7528\u65f6\u7684\u89c4\u5219\u4e5f\u4f1a\u6709\u76f8\u5e94\u7684\u53d8\u5316.<\/p>\n
        \n
      1. \u6784\u9020\u51fd\u6570: \u6d3e\u751f\u7c7b\u7684\u6784\u9020\u51fd\u6570\u4f1a\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u6765\u521d\u59cb\u5316\u6765\u81ea\u57fa\u7c7b\u7684\u90a3\u4e00\u90e8\u5206\u6210\u5458. \u5148\u8c03\u7528\u57fa\u7c7b\u6784\u9020\u51fd\u6570\u518d\u8c03\u7528\u6d3e\u751f\u7c7b\u6784\u9020\u51fd\u6570<\/strong>. \u5982\u679c\u57fa\u7c7b\u6ca1\u6709\u9ed8\u8ba4\u7684\u6784\u9020\u51fd\u6570, \u90a3\u4e48\u5c31\u5fc5\u987b\u5728\u6d3e\u751f\u7c7b\u4e2d\u663e\u5f0f\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570.<\/li>\n
      2. \u62f7\u8d1d\u6784\u9020: \u6d3e\u751f\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u4f1a\u8c03\u7528\u57fa\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570<\/li>\n
      3. \u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d: \u6d3e\u751f\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u4f1a\u8c03\u7528\u57fa\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570<\/li>\n
      4. \u6790\u6784\u51fd\u6570: \u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u88ab\u8c03\u7528\u5b8c\u540e, \u4f1a\u81ea\u52a8\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570<\/strong>. \u4fdd\u8bc1\u5148\u6e05\u7406\u6d3e\u751f\u7c7b\u5bf9\u8c61\u6210\u5458, \u518d\u6e05\u7406\u57fa\u7c7b\u6210\u5458.<\/li>\n<\/ol>\n
        \u4e00\u4e2a\u9762\u8bd5\u9898:
        \n\u5b9e\u73b0\u4e00\u4e2a\u4e0d\u80fd\u7ee7\u627f\u7684\u7c7b<\/p>\n
        class Myclass{\npublic:\n    static Create Myclass(){\n        return Myclass()\n    }\nprivate:\n    Myclass(){};    \n}; \/\/TODO\n\nclass Myclass2 final{\/\/C++11\u7684\u5fc3\u5173\u952e\u5b57final\u53ef\u4ee5\u7981\u6b62\u7ee7\u627f    \n};\n\n<\/code><\/pre>\n
        5.\u591a\u7ee7\u627f<\/h2>\n
        C++\u5141\u8bb8\u591a\u7ee7\u627f, \u5373\u4e00\u4e2a\u6d3e\u751f\u7c7b\u53ef\u4ee5\u6709\u591a\u4e2a\u57fa\u7c7b.<\/p>\n
        class Myclass: public class1, public class2{\n};\/\/myclass\u7ee7\u627f\u81eaclass1\u548cclass2\n<\/code><\/pre>\n
        \u4f46\u662f\u6709\u4e86\u591a\u7ee7\u627f, \u5c31\u6709\u53ef\u80fd\u53d1\u751f\u5404\u79cd\u5404\u6837\u590d\u6742\u7684\u7ee7\u627f\u5173\u7cfb. \u50cf\u4ec0\u4e48\u83f1\u5f62\u7ee7\u627f\u4ec0\u4e48\u7684, \u7b80\u76f4\u5c31\u50cf\u662f\u770b\u7740\u4e00\u5806\u4ee3\u7801\u5728\u4e71\u4f26.
        \n\u800c\u4e14\u4e5f\u5f15\u53d1\u4e86\u4e00\u4e9b\u95ee\u9898, \u6bd4\u5982\u83f1\u5f62\u7ee7\u627f\u4e2d\u4ee3\u7801\u7684\u4e8c\u4e49\u6027\u95ee\u9898.<\/p>\n
        class A{\n    int num;\n};\nclass B: public A{\n};\nclass C: public A{\n};\nclass D: public B, public C{\n};\n\nD d;\/\/\u5b9e\u4f8b\u5316\u4e00\u4e2aD\u7c7b\u5bf9\u8c61\nd.num = 1;\/\/\u73b0\u5728\u95ee\u9898\u6765\u4e86,\u8fd9\u4e2anum\u662f\u6765\u81eaB\u7c7b\u7ee7\u627f\u7684A,\u8fd8\u662f\u6765\u81eaC\u7c7b\u7ee7\u627f\u7684A?\n\nd.B::num = 1;\/\/\u8fd9\u6837\u53ef\u4ee5\u89e3\u51b3\u4e8c\u4e49\u6027\u7684\u95ee\u9898, \u4f46\u662f\u6570\u636e\u5197\u4f59\u7684\u95ee\u9898\u4f9d\u7136\u5b58\u5728\n<\/code><\/pre>\n
        \u865a\u62df\u7ee7\u627f<\/h2>\n
        \u865a\u62df\u7ee7\u627f\u89e3\u51b3\u4e86\u83f1\u5f62\u7ee7\u627f\u4e2d\u4e8c\u4e49\u6027\u548c\u6570\u636e\u5197\u4f59\u7684\u95ee\u9898.<\/p>\n
        class A{\n    int num;\n};\nclass B: virtual public A{\n};\nclass C: virtual public A{\n};\nclass D: public B, public C{\n};\n\nD d;\/\/\u5b9e\u4f8b\u5316\u4e00\u4e2aD\u7c7b\u5bf9\u8c61\nd.num = 1;\/\/\u8fd9\u6837\u53ea\u4f1a\u8bbf\u95ee\u5230\u4e00\u4e2anum\u6210\u5458.\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
        \u7ee7\u627f \u4ee5\u524d, \u5728C\u8bed\u8a00\u65f6, \u6211\u4eec\u4e3a\u4e86\u5b9e\u73b0\u4ee3\u7801\u590d\u7528, \u4f7f\u7528\u4e86\u51fd\u6570\u6765\u5c01\u88c5\u4e00\u4e9b \u91cd\u590d\u64cd\u4f5c\u7684\u4ee3\u7801. \u800c\u5f53\u6211\u4eec\u8fc7\u6e21\u5230C++\u65f6, \u9762\u5411\u5bf9\u8c61\u7684\u7279\u6027\u4f7f\u5f97\u4ee3\u7801\u590d\u7528\u53d1\u751f\u4e86\u4e00\u4e9b\u56f0\u96be. \u5bf9\u4e8e\u4f7f\u7528\u7c7b\u8fdb\u884c\u5c01\u88c5\u7684\u4ee3\u7801, \u600e\u4e48\u5728\u53e6\u4e00\u4e2a\u7c7b\u4e2d\u8bbf\u95ee\u5b83\u4eec\u5462?\u8fd9\u5c31\u9700\u8981\u4f7f\u7528\u5230\u7ee7\u627f\u4e86. 1.\u7ee7\u627f\u7684\u57fa\u672c\u6982\u5ff5 class Person{ public: char[1024] gender; }; class Chinese:public Person { \/\/\u8fd9\u91ccChinese\u662f\u6d3e\u751f\u7c7b, Person\u662f\u57fa\u7c7b, \u7ee7\u627f\u65b9\u5f0f\u662fpublic public: int id; }; \u7ee7\u627f\u65f6, \u88ab\u7ee7\u627f\u7684\u7c7b\u53eb\u505a\u57fa\u7c7b, \u7ee7\u627f\u7684\u7c7b\u53eb\u505a\u6d3e\u751f\u7c7b.\u5f62\u8c61\u4e00\u70b9\u7684\u8bdd: \u57fa\u7c7b = \u7236\u7c7b, \u6d3e\u751f\u7c7b = \u5b50\u7c7b. \u7ee7\u627f\u65b9\u5f0f\u6709\u4e09\u79cd: public, protetced, private. \u4f7f\u7528\u4e0d\u540c\u7684\u7ee7\u627f\u65b9\u5f0f, \u6d3e\u751f\u7c7b\u80fd\u8bbf\u95ee\u57fa\u7c7b\u7684\u8303\u56f4\u4e5f\u4e0d\u4e00\u6837. \u5177\u4f53\u8303\u56f4\u53ef\u4ee5\u770b\u4e0b\u9762\u7684\u8868\u683c: public\u7ee7\u627f protetced\u7ee7\u627f private\u7ee7\u627f \u57fa\u7c7b\u7684public\u6210\u5458 \u6d3e\u751f\u7c7b\u7684public\u6210\u5458 \u6d3e\u751f\u7c7b\u7684protetced\u6210\u5458 \u6d3e\u751f\u7c7b\u7684private\u6210\u5458 \u57fa\u7c7b\u7684protetced\u6210\u5458 \u6d3e\u751f\u7c7b\u7684protetced\u6210\u5458 \u6d3e\u751f\u7c7b\u7684protetced\u6210\u5458 \u6d3e\u751f\u7c7b\u7684private\u6210\u5458 \u57fa\u7c7b\u7684private\u6210\u5458 \u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1 \u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1 \u6d3e\u751f\u7c7b\u4e2d\u4e0d\u53ef\u89c1 \u4ece\u4e0a\u8868\u4e2d\u6211\u4eec\u53ef\u4ee5\u770b\u51fa, protetced\u6210\u5458\u548cprivate\u6210\u5458\u7684\u533a\u522b\u5c31\u4f53\u73b0\u5728\u7ee7\u627f\u4e2d. \u5982\u679c\u6ca1\u6709\u7ee7\u627f, \u4ed6\u4eec\u4e24\u4e2a\u6ca1\u6709\u4efb\u4f55\u533a\u522b, \u4f46\u6709\u4e86\u7ee7\u627f, protetced\u6210\u5458\u548cprivate\u6210\u5458\u4fbf\u6709\u4e86\u4e0d\u540c\u7684\u542b\u4e49. \u57fa\u7c7b\u7684private\u6210\u5458\u5728\u6d3e\u751f\u7c7b\u4e2d\u65e0\u8bba\u4ee5\u4f55\u79cd\u65b9\u5f0f\u7ee7\u627f, \u90fd\u662f\u4e0d\u53ef\u89c1\u7684. \u800cprotetced\u6210\u5458\u53ef\u4ee5\u901a\u8fc7\u7ee7\u627f\u8ba9\u6d3e\u751f\u7c7b\u8bbf\u95ee. \u7ee7\u627f\u65b9\u5f0f\u53ef\u4ee5\u4e0d\u663e\u5f0f\u5199\u51fa, \u7f16\u8bd1\u5668\u4f1a\u6839\u636e\u4f7f\u7528\u7684\u5173\u952e\u5b57\u6765\u5224\u65ad\u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f: \u4f7f\u7528class\u65f6, \u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f\u662fprivate\u7ee7\u627f, \u4f7f\u7528struct\u65f6, \u9ed8\u8ba4\u7684\u7ee7\u627f\u65b9\u5f0f\u65f6public\u7ee7\u627f. 2.\u57fa\u7c7b\u548c\u6d3e\u751f\u7c7b\u7684\u8d4b\u503c \u6d3e\u751f\u7c7b\u5bf9\u8c61\u7684\u5b9e\u4f8b\u53ef\u4ee5\u76f4\u63a5\u7ed9\u57fa\u7c7b\u5bf9\u8c61\u7684\u5b9e\u4f8b\u8d4b\u503c, \u6d3e\u751f\u7c7b\u5bf9\u8c61\u5b9e\u4f8b\u4f1a\u5c06\u7ee7\u627f\u81ea\u57fa\u7c7b\u7684\u90a3\u90e8\u5206\u6210\u5458\u7684\u503c\u8d4b\u503c\u7ed9\u57fa\u7c7b\u5bf9\u8c61\u5b9e\u4f8b. Chinese ch; Person p = ch; Person* pp = &ch; Person& ppp = ch; \u800c\u57fa\u7c7b\u5b9e\u4f8b\u4e0d\u80fd\u7ed9\u6d3e\u751f\u7c7b\u5b9e\u4f8b\u8d4b\u503c. 3.\u7ee7\u627f\u7684\u4f5c\u7528\u57df \u7ee7\u627f\u4e4b\u540e, \u6d3e\u751f\u7c7b\u548c\u57fa\u7c7b\u62e5\u6709\u5404\u81ea\u72ec\u7acb\u7684\u4f5c\u7528\u57df, \u4ed6\u4eec\u4e4b\u95f4\u7684\u6210\u5458\u53d8\u91cf\u76f8\u4e92\u4e4b\u95f4\u4e0d\u4f1a\u5f71\u54cd.(\u5373\u4f7f\u662f\u6d3e\u751f\u7c7b\u7ee7\u627f\u81ea\u539f\u6765\u57fa\u7c7b\u7684\u90e8\u5206, \u5728\u5b9e\u4f8b\u5316\u65f6\u4e5f\u4e0d\u4f1a\u4ece\u5df2\u7ecf\u5b9e\u4f8b\u5316\u7684\u57fa\u7c7b\u4e2d\u83b7\u53d6\u6570\u636e) \u4f46\u6709\u4e24\u79cd\u60c5\u51b5\u9664\u5916: \u7b2c\u4e00\u662f\u540c\u540d\u9690\u85cf. \u4e00\u65e6\u5728\u6d3e\u751f\u7c7b\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u548c\u57fa\u7c7b\u76f8\u540c\u540d\u5b57\u7684\u6210\u5458, \u5c31\u4f1a\u6784\u6210\u9690\u85cf. \u6d3e\u751f\u7c7b\u4f1a\u4f18\u5148\u8bbf\u95ee\u5728\u81ea\u5df1\u7684\u5b9a\u4e49\u57df\u4e2d\u5b9a\u4e49\u7684\u6210\u5458. \u5bf9\u4e8e\u6210\u5458\u51fd\u6570\u6765\u8bf4, \u53ea\u9700\u8981\u51fd\u6570\u540d\u76f8\u540c\u5c31\u4f1a\u6784\u6210\u540c\u540d\u9690\u85cf. \u7b2c\u4e8c\u4e2a\u662fstatic\u6210\u5458. \u57fa\u7c7b\u4e2d\u5982\u679c\u5b9a\u4e49\u4e86static\u6210\u5458\u90a3\u4e48\u6574\u4e2a\u7ee7\u627f\u4f53\u7cfb\u4e2d\u5c31\u53ea\u80fd\u6709\u4e00\u4e2a\u8fd9\u6837\u7684\u6210\u5458. \u65e0\u8bba\u6d3e\u751f\u51fa\u591a\u5c11\u4e2a\u5b50\u7c7b, \u90fd\u53ea\u80fd\u6709\u4e00\u4e2astatic\u6210\u5458\u5b9e\u4f8b 4.\u6d3e\u751f\u7c7b\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570 \u5728\u7c7b\u548c\u5bf9\u8c61\u4e2d\u6211\u4eec\u90fd\u77e5\u9053\u67096\u4e2a\u9ed8\u8ba4\u6210\u5458\u51fd\u6570. \u7ee7\u627f\u8fc7\u540e\u7684\u6d3e\u751f\u7c7b, \u4ed6\u4eec\u7684\u9ed8\u8ba4\u6210\u5458\u51fd\u6570\u5728\u4f7f\u7528\u65f6\u7684\u89c4\u5219\u4e5f\u4f1a\u6709\u76f8\u5e94\u7684\u53d8\u5316. \u6784\u9020\u51fd\u6570: \u6d3e\u751f\u7c7b\u7684\u6784\u9020\u51fd\u6570\u4f1a\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570\u6765\u521d\u59cb\u5316\u6765\u81ea\u57fa\u7c7b\u7684\u90a3\u4e00\u90e8\u5206\u6210\u5458. \u5148\u8c03\u7528\u57fa\u7c7b\u6784\u9020\u51fd\u6570\u518d\u8c03\u7528\u6d3e\u751f\u7c7b\u6784\u9020\u51fd\u6570. \u5982\u679c\u57fa\u7c7b\u6ca1\u6709\u9ed8\u8ba4\u7684\u6784\u9020\u51fd\u6570, \u90a3\u4e48\u5c31\u5fc5\u987b\u5728\u6d3e\u751f\u7c7b\u4e2d\u663e\u5f0f\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570. \u62f7\u8d1d\u6784\u9020: \u6d3e\u751f\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570\u4f1a\u8c03\u7528\u57fa\u7c7b\u7684\u62f7\u8d1d\u6784\u9020\u51fd\u6570 \u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d: \u6d3e\u751f\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u4f1a\u8c03\u7528\u57fa\u7c7b\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u51fd\u6570 \u6790\u6784\u51fd\u6570: \u6d3e\u751f\u7c7b\u7684\u6790\u6784\u51fd\u6570\u88ab\u8c03\u7528\u5b8c\u540e, \u4f1a\u81ea\u52a8\u8c03\u7528\u57fa\u7c7b\u7684\u6784\u9020\u51fd\u6570. \u4fdd\u8bc1\u5148\u6e05\u7406\u6d3e\u751f\u7c7b\u5bf9\u8c61\u6210\u5458, \u518d\u6e05\u7406\u57fa\u7c7b\u6210\u5458. \u4e00\u4e2a\u9762\u8bd5\u9898: \u5b9e\u73b0\u4e00\u4e2a\u4e0d\u80fd\u7ee7\u627f\u7684\u7c7b class Myclass{ public: static Create Myclass(){ return Myclass() } private: Myclass(){}; }; \/\/TODO class Myclass2 final{\/\/C++11\u7684\u5fc3\u5173\u952e\u5b57final\u53ef\u4ee5\u7981\u6b62\u7ee7\u627f }; 5.\u591a\u7ee7\u627f C++\u5141\u8bb8\u591a\u7ee7\u627f, \u5373\u4e00\u4e2a\u6d3e\u751f\u7c7b\u53ef\u4ee5\u6709\u591a\u4e2a\u57fa\u7c7b. class Myclass: public class1, public class2{ };\/\/myclass\u7ee7\u627f\u81eaclass1\u548cclass2 \u4f46\u662f\u6709\u4e86\u591a\u7ee7\u627f, \u5c31\u6709\u53ef\u80fd\u53d1\u751f\u5404\u79cd\u5404\u6837\u590d\u6742\u7684\u7ee7\u627f\u5173\u7cfb. \u50cf\u4ec0\u4e48\u83f1\u5f62\u7ee7\u627f\u4ec0\u4e48\u7684, \u7b80\u76f4\u5c31\u50cf\u662f\u770b\u7740\u4e00\u5806\u4ee3\u7801\u5728\u4e71\u4f26. \u800c\u4e14\u4e5f\u5f15\u53d1\u4e86\u4e00\u4e9b\u95ee\u9898, \u6bd4\u5982\u83f1\u5f62\u7ee7\u627f\u4e2d\u4ee3\u7801\u7684\u4e8c\u4e49\u6027\u95ee\u9898. class A{ int num; }; class B: public A{ }; class C: public A{ }; class D: publ…<\/p>\n","protected":false},"author":1,"featured_media":196,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[11,5],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=\/wp\/v2\/posts\/188"}],"collection":[{"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=188"}],"version-history":[{"count":1,"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=\/wp\/v2\/posts\/188\/revisions"}],"predecessor-version":[{"id":189,"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=\/wp\/v2\/posts\/188\/revisions\/189"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=\/wp\/v2\/media\/196"}],"wp:attachment":[{"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kishere.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}