{"id":218,"date":"2020-01-22T04:51:13","date_gmt":"2020-01-21T20:51:13","guid":{"rendered":"https:\/\/twocups.cn\/?p=218"},"modified":"2021-03-21T18:17:54","modified_gmt":"2021-03-21T10:17:54","slug":"16","status":"publish","type":"post","link":"https:\/\/twocups.cn\/index.php\/2020\/01\/22\/16\/","title":{"rendered":"\u3010Java\u3011static\u6267\u884c\u987a\u5e8f\u8be6\u89e3\uff08\u4ec0\u4e48\u60c5\u51b5\u4e0b\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\u4f1a\u5148\u8fd0\u884c\uff1f\uff09"},"content":{"rendered":"\n

\"\"\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\uff1ahttps:\/\/twocups.cn\/index.php\/2020\/01\/22\/16\/<\/a><\/h4>\n\n\n\n

\u5173\u4e8e Java \u4e2d static \u6267\u884c\u987a\u5e8f\u7684\u95ee\u9898\uff0c\u7f51\u4e0a\u6709\u5f88\u591a\u89e3\u7b54\u3002\u4f46\u968f\u7740\u6211\u7814\u7a76\u7684\u6df1\u5165\uff0c\u6211\u53d1\u73b0 static \u5b9e\u9645\u4e0a\u7684\u6267\u884c\u987a\u5e8f\u6bd4\u7f51\u4e0a\u8bf4\u7684\u590d\u6742\u5f97\u591a\u3002\u6b63\u597d\u7f51\u4e0a\u4e5f\u6ca1\u6709\u5176\u4ed6\u8fd9\u65b9\u9762\u7684\u8d44\u6599\uff0c\u6240\u4ee5\u6211\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u91ca\u4e00\u4e0b static \u7684\u5177\u4f53\u6267\u884c\u987a\u5e8f\u3002<\/p>\n\n\n\n

\u5148\u4e0a\u4e2a\u6700\u590d\u6742\u7684\u4f8b\u5b50<\/h2>\n\n\n\n
\/\/\u7236\u7c7bparent\nclass parent {\n    private static parent a=new parent(); \/\/\u7236\u7c7b\u9759\u6001\u53d8\u91cf\n    static{\n        System.out.println(\"\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public parent(){\n        System.out.println(\"\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n}\n\n\/\/\u5b50\u7c7bsub\nclass sub extends parent{\n    private static sub b = new sub(); \/\/\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\n    static{\n        System.out.println(\"\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public sub(){\n        System.out.println(\"\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n    public static void main(String[] args) {\n        System.out.println(\"main\");\n        new parent();\n        System.out.println(\"parent-sub\");\n        new sub();\n    }\n}<\/pre>\n\n\n\n
\u4f60\u89c9\u5f97\u4ee5\u4e0a\u4f8b\u5b50\u7684\u8f93\u51fa\u7ed3\u679c\u662f\u600e\u6837\u7684\u5462\uff1f<\/p>\n\n\n\n
\u5b9e\u9645\u4e0a\u662f\u8fd9\u6837\uff1a<\/p>\n\n\n\n
\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\nparent-sub\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/pre>\n\n\n\n
\u4f60\u4e5f\u8bb8\u89c9\u5f97\u8fd9\u662f\u9519\u7684\uff01<\/strong>\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\u600e\u4e48\u53ef\u80fd\u5148\u8fd0\u884c\u5462\uff1f\uff01\u8981\u4e48\u5148\u8fd0\u884c\u7236\u7c7b\u9759\u6001\u65b9\u6cd5\uff0c\u8981\u4e48\u8981\u5148\u8fd0\u884c\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff0c\u600e\u4e48\u6837\u4e5f\u8f6e\u4e0d\u5230\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\u5148\u8fd0\u884c\u554a\uff01<\/p>\n\n\n\n
\u4f46\u5176\u5b9e\u8fd9\u5c31\u662f\u5b9e\u9645\u4e0a\u7684\u8fd0\u884c\u987a\u5e8f\uff0c\u4e0d\u4fe1\u7684\u8bdd\u4f60\u53ef\u4ee5\u81ea\u5df1\u5c1d\u8bd5\u8fd0\u884c\u4e00\u4e0b\u3002<\/p>\n\n\n\n
\u90a3\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\u5462\uff1f\u522b\u6025\uff0c\u6162\u6162\u770b\u4e0b\u53bb\u3002<\/p>\n\n\n\n
\u6211\u4eec\u6765\u4e2a\u6700\u7b80\u5355\u7684\u4f8b\u5b50\uff08\u60c5\u51b51\uff09<\/h2>\n\n\n\n
\/\/\u7236\u7c7bparent\nclass parent {\n    static{\n        System.out.println(\"\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public parent(){\n        System.out.println(\"\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n}\n\n\/\/\u5b50\u7c7bsub\nclass sub extends parent{\n    static{\n        System.out.println(\"\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public sub(){\n        System.out.println(\"\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n\/\/    public static void main(String[] args) {\n\/\/        System.out.println(\"main\");\n\/\/        new sub();\n\/\/    }\n\n}\n\n\/\/\u4e3b\u65b9\u6cd5\u7c7bTest\npublic class Test{\n    public static void main(String[] args){\n        System.out.println(\"main\");\n        new sub();\n    }\n}<\/pre>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
main\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/pre>\n\n\n\n
\u8fd9\u4e2a\u6267\u884c\u987a\u5e8f\u5e94\u8be5\u6ca1\u6709\u4eba\u6709\u5f02\u8bae\u5427\uff0c\u6bd5\u7adf\u8fd9\u662f\u6700\u57fa\u672c\u7684\u6267\u884c\u987a\u5e8f\uff0c\u5c31\u4e0d\u89e3\u91ca\u4e86\uff0c\u7f51\u4e0a\u8fd9\u79cd\u57fa\u7840\u7684\u8bb2\u89e3\u5f88\u591a\u3002<\/p>\n\n\n\n
\u628a main \u653e\u5728 sub \u7c7b\u91cc\u9762\u91cc\u9762\uff08\u60c5\u51b52\uff09<\/h2>\n\n\n\n
\/\/\u7236\u7c7bparent\nclass parent {\n    static{\n        System.out.println(\"\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public parent(){\n        System.out.println(\"\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n}\n\n\/\/\u5b50\u7c7bsub\nclass sub extends parent{\n    static{\n        System.out.println(\"\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public sub(){\n        System.out.println(\"\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n    public static void main(String[] args) {\n        System.out.println(\"main\");\n        new sub();\n    }\n}<\/pre>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/pre>\n\n\n\n
\u8fd9\u91cc\u6211\u4eec\u5c31\u53ef\u4ee5\u77e5\u9053\uff0c\u7c7b\u4e2d\u6267\u884c\u987a\u5e8f\u7684\u4f18\u5148\u7ea7\u4e3a\uff1a\u9759\u6001\u4ee3\u7801\u5757>main>\u666e\u901a\u4ee3\u7801\u5757>\u6784\u9020\u65b9\u6cd5<\/strong>\u3002 <\/p>\n\n\n\n
\u4e24\u6b21 main \u5728\u6267\u884c\u4e2d\u7684\u4f4d\u7f6e\u4e0d\u540c\u7684\u539f\u56e0\u6709\u4e24\u4e2a\uff1a1. \u7c7b\u88ab\u521d\u59cb\u5316\u540e\u4f1a\u5bfc\u81f4\u8be5\u7c7b\u53ca\u5176\u7236\u7c7b\u4e2d\u9759\u6001\u90e8\u5206 \uff08\u9759\u6001\u4ee3\u7801\u5757\u3001\u9759\u6001\u53d8\u91cf\u3001main\uff09 \u88ab\u52a0\u8f7d 2. \u65b0\u5efa\u7c7b\u7684\u5b9e\u4f8b\u4f1a\u5bfc\u81f4\u8be5\u7c7b\u53ca\u5176\u7236\u7c7b\u4e2d\u9759\u6001\u90e8\u5206\uff08\u9759\u6001\u4ee3\u7801\u5757\u3001\u9759\u6001\u53d8\u91cf\u3001main\uff09\u548c\u4e00\u4e9b\u975e\u9759\u6001\u90e8\u5206\uff08\u666e\u901a\u4ee3\u7801\u5757\u3001\u6784\u9020\u65b9\u6cd5\uff09\u88ab\u52a0\u8f7d\u3002<\/strong><\/p>\n\n\n\n
\u5177\u4f53\u70b9\u8bf4\uff0c\u60c5\u51b51\u4e2d main \u5728\u5b50\u7c7b\u548c\u7236\u7c7b\u521d\u59cb\u5316\u4e4b\u524d\uff0c\u800c\u60c5\u51b52\u4e2d main \u5728\u5b50\u7c7b\u548c\u7236\u7c7b\u521d\u59cb\u5316\u4e4b\u540e\u3002\u518d\u63d0\u4e00\u53e5\uff0c\u5982\u679c main \u88ab\u653e\u5728\u7236\u7c7b\u4e2d\u7684\u8bdd\uff0c\u90a3\u4e48\u6574\u4e2a\u5b50\u7c7b\u5c31\u4e0d\u4f1a\u88ab\u521d\u59cb\u5316\u3002 <\/p>\n\n\n\n
\u90a3\u5982\u679c\u6ca1\u6709\u201cnew sub()\u201d\u4f1a\u600e\u4e48\u6837\u5462\uff1f<\/p>\n\n\n\n
\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain<\/pre>\n\n\n\n
\u539f\u56e0\u5f88\u7b80\u5355\uff0c\u56e0\u4e3a\u7c7b\u53ea\u662f\u88ab\u521d\u59cb\u5316\u4e86\uff0c\u800c\u5e76\u6ca1\u6709\u5173\u4e8e\u5b83\u7684\u5b9e\u4f8b\u88ab\u65b0\u5efa\u3002\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u975e\u9759\u6001\u90e8\u5206\u603b\u4f53\u4e0a\u4e00\u5b9a\u4f1a\u5728\u9759\u6001\u90e8\u5206\u540e\u9762\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n
\u5982\u679c\u4e0d\u4e86\u89e3\u7c7b\u52a0\u8f7d\u7684\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u770b\u6211\u4e0a\u4e00\u7bc7\u6587\u7ae0\uff08\u3010Java\u3011Java\u8bed\u8a00\u7684\u53cd\u5c04\u673a\u5236<\/a>\uff09\uff0c\u91cc\u9762\u6709\u8bf4\u660e\u3002<\/p>\n\n\n\n
\u65b0\u589e\u4e00\u4e2a\u7236\u7c7b\u9759\u6001\u53d8\u91cf\uff08\u60c5\u51b53\uff09<\/h2>\n\n\n\n
\/\/\u7236\u7c7bparent\nclass parent {\n    static{\n        System.out.println(\"\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    private static parent a = new parent(); \/\/\u7236\u7c7b\u9759\u6001\u53d8\u91cf\n    {\n        System.out.println(\"\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public parent(){\n        System.out.println(\"\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n}\n\n\/\/\u5b50\u7c7bsub\nclass sub extends parent{\n    static{\n        System.out.println(\"\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public sub(){\n        System.out.println(\"\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n    public static void main(String[] args) {\n        System.out.println(\"main\");\n        new sub();\n    }\n}<\/pre>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/pre>\n\n\n\n
\u6211\u4eec\u53ea\u662f\u5728\u7236\u7c7b\u4e2d\u591a\u52a0\u4e86\u4e00\u4e2a\u9759\u6001\u53d8\u91cf\uff0c\u4e3a\u4ec0\u4e48\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u4e0b\u9762\u5c31\u53d8\u6210\u4e86\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\u4e86\u5462\uff1f<\/p>\n\n\n\n
\u539f\u56e0\u6709\u56db\u4e2a\uff1a1.  \u7c7b\u4e2d\u5b58\u5728\u9759\u6001\u53d8\u91cf\u65f6\u7684\u6267\u884c\u987a\u5e8f\u4f18\u5148\u7ea7\u4e3a\uff1a\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u9759\u6001\u53d8\u91cf>\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u5b50\u7c7b\u9759\u6001\u53d8\u91cf>main>\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757>\u7236\u7c7b\u6784\u9020\u65b9\u6cd5>\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757>\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5 2. \u9759\u6001\u4ee3\u7801\u5757\u548c\u9759\u6001\u53d8\u91cf\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21 3. \u7c7b\u53ea\u8981\u88ab\u7528\u5230\u4e86\uff08\u521d\u59cb\u5316\uff09\u5c31\u4e00\u5b9a\u4f1a\u52a0\u8f7d\u9759\u6001\u90e8\u5206 4. \u975e\u9759\u6001\u90e8\u5206\u53ea\u6709\u88ab\u7528\u5230\u4e86\uff08\u6267\u884c\u4e86\uff09\u624d\u4f1a\u88ab\u52a0\u8f7d<\/strong><\/p>\n\n\n\n
\u903b\u8f91\u4e0a\u987a\u5e8f\u4e3a\uff1a<\/p>\n\n\n\n
\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\/\/\u4ee5\u4e0b\u4e09\u884c\u662f\u7531\u4e8e\u7236\u7c7b\u88ab\u521d\u59cb\u5316\u8d4b\u503c\u7ed9\u4e86\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6240\u4ea7\u751f\u7684\uff0c\u81ea\u5df1\u4e2d\u6267\u884c\u81ea\u5df1\uff0c\u6709\u70b9\u9012\u5f52\u7684\u601d\u60f3\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\uff08\u8fd9\u4e00\u884c\u7531\u4e8e\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21\u6240\u4ee5\u5e76\u4e0d\u5b58\u5728\uff09\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/pre>\n\n\n\n
\u4ee5\u4e0a\u6267\u884c\u6b65\u9aa4\u53ef\u4ee5\u7b80\u5355\u6574\u5408\u4e3a\uff1a<\/p>\n\n\n\n
\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757+\u7236\u7c7b\u9759\u6001\u53d8\u91cf\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/pre>\n\n\n\n
\u8fd9\u6837\u5c31\u548c\u60c5\u51b52\u662f\u4e00\u6837\u7684\u6267\u884c\u987a\u5e8f\u4e86\uff0c\u53ea\u8981\u7528\u9012\u5f52\u7684\u601d\u60f3\u53bb\u7406\u89e3\u5e76\u4e0d\u96be\u61c2\u3002<\/p>\n\n\n\n
\u5c06\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u8c03\u6362\u987a\u5e8f\uff08\u60c5\u51b54\uff09<\/h2>\n\n\n\n
\/\/\u7236\u7c7bparent\nclass parent {\n    private static parent a=new parent(); \/\/\u7236\u7c7b\u9759\u6001\u53d8\u91cf\n    static{\n        System.out.println(\"\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public parent(){\n        System.out.println(\"\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n}\n\n\/\/\u5b50\u7c7bsub\nclass sub extends parent{\n    static{\n        System.out.println(\"\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public sub(){\n        System.out.println(\"\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n    public static void main(String[] args) {\n        System.out.println(\"main\");\n        new sub();\n    }\n}<\/pre>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/pre>\n\n\n\n
\u6211\u4eec\u53ea\u662f\u5c06\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u8c03\u6362\u987a\u5e8f\uff0c\u4e3a\u4ec0\u4e48\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\u6700\u5148\u6267\u884c\u5462\uff1f<\/p>\n\n\n\n
\u539f\u56e0\u6709\u4e24\u4e2a\uff1a1. \u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u4e4b\u95f4\u7684\u5148\u540e\u987a\u5e8f\u7531\u4e66\u5199\u987a\u5e8f\u51b3\u5b9a 2. \u9759\u6001\u4ee3\u7801\u5757\u548c\u9759\u6001\u53d8\u91cf\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21<\/strong><\/p>\n\n\n\n
\u6211\u4eec\u6765\u770b\u770b\u8fd9\u6bb5\u4ee3\u7801\u903b\u8f91\u4e0a\u7684\u6267\u884c\u987a\u5e8f\uff1a<\/p>\n\n\n\n
\u6574\u5408\u7248\uff1a\n\u7236\u7c7b\u9759\u6001\u53d8\u91cf\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\n\n\u8be6\u7ec6\u7248\uff1a\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\uff08\u8fd9\u4e00\u884c\u7531\u4e8e\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21\u6240\u4ee5\u5e76\u4e0d\u5b58\u5728\uff09\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\n<\/pre>\n\n\n\n
\u4ee5\u4e0a\u6b65\u9aa4\u4e2d\u7531\u4e8e\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21\uff0c\u6240\u4ee5\u4e24\u4e2a\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u53ea\u4f1a\u5b58\u5728\u4e00\u4e2a\u3002\u518d\u52a0\u4e0a\u4e4b\u524d\u63d0\u5230\u7684\u4e00\u6761\u89c4\u5219 \u2014\u2014 \u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u4e4b\u95f4\u7684\u5148\u540e\u987a\u5e8f\u7531\u4e66\u5199\u987a\u5e8f\u51b3\u5b9a<\/strong>\uff0c\u6240\u4ee5\u53ea\u6709\u7b2c\u4e8c\u6b21\u7684\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u88ab\u6267\u884c\u4e86\u3002<\/p>\n\n\n\n
\u90a3\u53ef\u80fd\u6709\u4eba\u8981\u8bf4\uff0c\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21\u7684\u8bdd\uff0c\u80af\u5b9a\u540e\u6267\u884c\u7684\u53d1\u73b0\u4e4b\u524d\u6267\u884c\u8fc7\u4e86\u4e8e\u662f\u4e0d\u6267\u884c\u4e86\u3002\u5176\u5b9e\u8fd9\u91cc\u7684\u5148\u540e\u987a\u5e8f\u5e76\u4e0d\u5b8c\u5168\u662f\u53c2\u7167\u65f6\u95f4\u610f\u4e49\u4e0a\u7684\uff0c\u6211\u4eec\u6765\u505a\u4e2a\u5b9e\u9a8c\uff1a<\/p>\n\n\n\n
public class Test2{\n    static{\n        a = -1;\n    }\n    private static int a;\n    public static void main(String[] args){\n        return;\n    }\n}<\/pre>\n\n\n\n
\u4ee5\u4e0a\u8fd9\u6bb5\u4ee3\u7801\u5148\u8d4b\u503c\u518d\u58f0\u660e\uff0c\u4f46\u5b83\u7684\u7f16\u8bd1\u548c\u8fd0\u884c\u90fd\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u5b9e\u9645\u4e0a\u60c5\u51b54\u7684\u903b\u8f91\u987a\u5e8f\u53ef\u4ee5\u66f4\u52a0\u7ec6\u5316\uff1a<\/p>\n\n\n\n
\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\/\/\u4ee5\u4e0a\u4e00\u884c\u7531\u4e8e\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21\uff0c\u5e76\u4e14\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u7684\u4e66\u5199\u987a\u5e8f\u5728\u7236\u7c7b\u9759\u6001\u65b9\u6cd5\u7684\u524d\u9762\uff0c\u6240\u4ee5\u73b0\u5728\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u4e0d\u80fd\u88ab\u6267\u884c\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5 \/\/\u5c5e\u4e8e\u751f\u6210\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\n<\/pre>\n\n\n\n
\u603b\u7ed3\u4e00\u4e0b\u5f71\u54cdStatic\u6267\u884c\u987a\u5e8f\u7684\u6240\u6709\u89c4\u5219<\/h2>\n\n\n\n
1. \u7c7b\u4e2d\u6267\u884c\u987a\u5e8f\u7684\u4f18\u5148\u7ea7\u4e3a\uff1a\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u9759\u6001\u53d8\u91cf>\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u5b50\u7c7b\u9759\u6001\u53d8\u91cf>main>\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757>\u7236\u7c7b\u6784\u9020\u65b9\u6cd5>\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757>\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5<\/strong><\/p>\n\n\n\n
2. \u5176\u4e2d\uff0c\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\u548c\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u4e4b\u95f4\u7684\u5148\u540e\u987a\u5e8f\u7531\u4e66\u5199\u987a\u5e8f\u51b3\u5b9a<\/strong><\/p>\n\n\n\n
3. \u9759\u6001\u4ee3\u7801\u5757\u548c\u9759\u6001\u53d8\u91cf\u53ea\u4f1a\u88ab\u6267\u884c\u4e00\u6b21<\/strong><\/p>\n\n\n\n
4. \u7c7b\u88ab\u521d\u59cb\u5316\u540e\u4f1a\u5bfc\u81f4\u8be5\u7c7b\u53ca\u5176\u7236\u7c7b\u4e2d\u9759\u6001\u90e8\u5206<\/strong> \uff08\u9759\u6001\u4ee3\u7801\u5757\u3001\u9759\u6001\u53d8\u91cf\u3001main\uff09<\/strong> \u88ab\u52a0\u8f7d<\/strong><\/p>\n\n\n\n
5. \u65b0\u5efa\u7c7b\u7684\u5b9e\u4f8b\u4f1a\u5bfc\u81f4\u8be5\u7c7b\u53ca\u5176\u7236\u7c7b\u4e2d\u9759\u6001\u90e8\u5206\uff08\u9759\u6001\u4ee3\u7801\u5757\u3001\u9759\u6001\u53d8\u91cf\u3001main\uff09\u548c\u4e00\u4e9b\u975e\u9759\u6001\u90e8\u5206\uff08\u666e\u901a\u4ee3\u7801\u5757\u3001\u6784\u9020\u65b9\u6cd5\uff09\u88ab\u52a0\u8f7d<\/strong><\/p>\n\n\n\n
\u6700\u5f00\u59cb\u7684\u4f8b\u5b50<\/h2>\n\n\n\n
\/\/\u7236\u7c7bparent\nclass parent {\n    private static parent a=new parent(); \/\/\u7236\u7c7b\u9759\u6001\u53d8\u91cf\n    static{\n        System.out.println(\"\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public parent(){\n        System.out.println(\"\u7236\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n}\n\n\/\/\u5b50\u7c7bsub\nclass sub extends parent{\n    private static sub b = new sub(); \/\/\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\n    static{\n        System.out.println(\"\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\");\n    }\n    {\n        System.out.println(\"\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757\");\n    }\n    public sub(){\n        System.out.println(\"\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\");\n    }\n    public static void main(String[] args) {\n        System.out.println(\"main\");\n        new parent();\n        System.out.println(\"parent-sub\");\n        new sub();\n    }\n}<\/pre>\n\n\n\n
\u903b\u8f91\u4e0a\u987a\u5e8f\u4e3a\uff1a<\/p>\n\n\n\n
\u6574\u5408\u7248\uff1a\n\u7236\u7c7b\u9759\u6001\u53d8\u91cf\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\n\u8be6\u7ec6\u7248\uff1a\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09  \/\/\u201cprivate static parent a=new parent()\u201d\u4e2d\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757  \/\/\u201cprivate static parent a=new parent()\u201d\u4e2d\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5  \/\/\u201cprivate static parent a=new parent()\u201d\u4e2d\u7236\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09  \/\/\u201cprivate static sub b = new sub()\u201d\u4e2d\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757  \/\/\u201cprivate static sub b = new sub()\u201d\u4e2d\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5  \/\/\u201cprivate static sub b = new sub()\u201d\u4e2d\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09  \/\/\u201cprivate static sub b = new sub()\u201d\u4e2d\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757  \/\/\u201cprivate static sub b = new sub()\u201d\u4e2d\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5  \/\/\u201cprivate static sub b = new sub()\u201d\u4e2d\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\u6b65\u9aa4\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\nmain\n\u7236\u7c7b\u9759\u6001\u53d8\u91cf\uff08\u4e0d\u5b58\u5728\uff09 \/\/\u201cmain\u201d\u4e2d\u201cnew parent()\u201d\u6b65\u9aa4\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09  \/\/\u201cmain\u201d\u4e2d\u201cnew parent()\u201d\u6b65\u9aa4\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757  \/\/\u201cmain\u201d\u4e2d\u201cnew parent()\u201d\u6b65\u9aa4\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5  \/\/\u201cmain\u201d\u4e2d\u201cnew parent()\u201d\u6b65\u9aa4\nparent-sub\n\u7236\u7c7b\u9759\u6001\u53d8\u91cf\uff08\u4e0d\u5b58\u5728\uff09 \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n\u7236\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09  \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n\u7236\u7c7b\u666e\u901a\u4ee3\u7801\u5757  \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n\u7236\u7c7b\u6784\u9020\u65b9\u6cd5  \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n\u5b50\u7c7b\u9759\u6001\u53d8\u91cf\uff08\u4e0d\u5b58\u5728\uff09 \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n\u5b50\u7c7b\u9759\u6001\u4ee3\u7801\u5757\uff08\u4e0d\u5b58\u5728\uff09  \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n\u5b50\u7c7b\u666e\u901a\u4ee3\u7801\u5757  \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n\u5b50\u7c7b\u6784\u9020\u65b9\u6cd5  \/\/\u201cmain\u201d\u4e2d\u201cnew sub()\u201d\u6b65\u9aa4\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\uff1ahttps:\/\/twocups.cn\/index.php\/202 […]<\/p>\n","protected":false},"author":1,"featured_media":64,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[80],"tags":[32,82,83],"_links":{"self":[{"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/posts\/218"}],"collection":[{"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/comments?post=218"}],"version-history":[{"count":0,"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/posts\/218\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/media\/64"}],"wp:attachment":[{"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/media?parent=218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/categories?post=218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/twocups.cn\/index.php\/wp-json\/wp\/v2\/tags?post=218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}