{"rsdb":{"rid":"156125","subhead":"","postdate":"0","aid":"117209","fid":"49","uid":"1","topic":"1","content":"<dd id=\"Article\"> \n <p><strong>\u5355\u4f8b\u6a21\u5f0f(<a href=https:\/\/www.cppentry.com\/list.php?fid=49 style=text-decoration:underline;font-size:14px;color:#F70968; target=_blank>C++<\/a>)\uff1a<\/strong>\u5176\u4ed6\u5199\u6cd5\u7684\u5355\u4f8b\u6a21\u5f0f\u5c31\u4e0d\u591a\u8bf4\u4e86\uff0c\u4e3b\u8981\u8bf4\u4e0b\u591a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c\u7684\u60c5\u51b5\u4e0b\u7684\u5355\u4f8b\u6a21\u5f0f\u3002\u4e3a\u4e86\u591a\u7ebf\u7a0b\u6267\u884c\u65f6\u7684\u5b89\u5168\u6027\uff0c\u8be5\u5355\u4f8b\u6a21\u5f0f\u4f7f\u7528\u4e86\u9501\u7684\u673a\u5236\uff0c\u9632\u6b62\u6570\u636e\u4e00\u8fb9\u5728\u201c\u8bfb\u201d\uff0c\u4e00\u8fb9\u5728\u201c\u5199\u201d\uff0c\u5bfc\u81f4\u6570\u636e\u4e0d\u5b8c\u6574\u3002<\/p> \n <p>\u5728\u672c\u4eba\u505a\u7684\u4e00\u4e2a\u6d77\u5916\u7684\u9879\u76ee\u65f6\u5c31\u9047\u5230\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0c\u5f53\u65f6\u67e5\u4e86\u5f88\u4e45\uff0c\u71ac\u4e862\u4e2a\u901a\u5bb5\uff0c\u6700\u540e\u67e5\u5230\u662f\u591a\u7ebf\u7a0b\u5e76\u53d1\u6267\u884c\u65f6\u5bf9<a target=\"_blank\" class=\"keylink\">\u6570\u636e\u5e93<\/a>\u4e2d\u7684\u6570\u636e\u6ca1\u6709\u52a0\u9501\u540c\u6b65\u5bfc\u81f4\u7684\u3002\u8dd1\u9898\u4e86\uff0c\u63a5\u7740\u4e0b\u9762\u8bb2\u8ff0\uff23++\u4e2d\u7684\u5355\u4f8b\u6a21\u5f0f\u7684\u4f7f\u7528\u3002<\/p> \n <p>\u5355\u4f8b\u6a21\u5f0f\u53ea\u6709\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u8282\u7701\u4e86\u8d44\u6e90\uff0c\u63d0\u9ad8\u4e86\u6548\u7387\uff0c\u7531\u4e8e\u5355\u4f8b\u6a21\u5f0f\u7684\u5b9e\u4f8b\u662f\u5171\u4eab\u7684\uff0c\u56e0\u6b64\u4e00\u5b9a\u8981\u505a\u597d\u4fdd\u62a4\uff0c\u9632\u6b62\u6570\u636e\u7834\u574f\uff0c\u4f7f\u7528\u4e86double\u52a0\u9501\u5bf9\u6570\u636e\u8fdb\u884c\u4fdd\u62a4\u7684\u673a\u5236\uff0c\u7531\u4e8e\u5bf9\u516c\u53f8\u7684\u8d1f\u8d23\uff0c\u53ea\u5199\u51fa\u4e86\u5173\u952e\u90e8\u5206\u7684\u4ee3\u7801\uff0c\u5982\u4e0b\uff1a<\/p> \n <pre class=\"brush:java;\">\r\nclass Singleton\r\n{\r\nprivate:\r\n    Singleton() {}\r\n\r\n    static Singleton *instance;\r\n\r\npublic:\r\n    static Singleton *getInstance();\r\n};\r\n\r\nSingleton *Singleton::getInstance()\r\n{\r\n    if (NULL == instance)\r\n    {\r\n        lock();\/\/\u52a0\u9501\r\n\r\n        if (NULL == instance)\r\n        {\r\n            instance = new Singleton();            \r\n        }\r\n\r\n        unlock();\/\/\u89e3\u9501\r\n    }\r\n    return instance;\r\n}<\/pre> \n<\/dd>","orderid":"0","title":"\u5355\u4f8b\u6a21\u5f0f(C++)","smalltitle":"","mid":"0","fname":"c++\u7f16\u7a0b\u57fa\u7840","special_id":"0","bak_id":"0","info":"0","hits":"372","pages":"1","comments":"0","posttime":"2017-01-21 08:14:49","list":"1484957689","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"<A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%B5%A5%C0%FD' target=_blank>\u5355\u4f8b<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%C4%A3%CA%BD' target=_blank>\u6a21\u5f0f<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"14.17.22.31","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"\u5355\u4f8b\u6a21\u5f0f(C++)","lastview":"1705265122","digg_num":"6558","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}