摘要: <?php class One{ private static $_one; private function __construct(){} private function __clone(){} public static function getOne(){ if(!self::$_one 阅读全文
posted @ 2021-05-17 10:13 skyhxm 阅读(37) 评论(0) 推荐(0)
摘要: <?php class One{ private static $_one; private function __construct(){} private function __clone(){} public static function getOne(){ if(!self::$_one 阅读全文
posted @ 2021-05-17 10:10 skyhxm 阅读(16) 评论(0) 推荐(0)