很全,值得拥有 CREATE TABLE `locations` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(255) COLLATE utf8_unicode_ci NOT NULL, `parent_id` int(10) unsigned NOT NULL, `level` tinyint(4) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=5025 DEFAULT CHARSET=utf8 COLLATE=ut