tp5.0想要使用Auth(权限分级别)怎么办？？在这有办法！

 DROP TABLE IF EXISTS `auth_rule`;
CREATE TABLE `auth_rule` (  
    `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,  
    `name` char(80) NOT NULL DEFAULT '',  
    `title` char(20) NOT NULL DEFAULT '',  
    `type` tinyint(1) NOT NULL DEFAULT '1',    
    `status` tinyint(1) NOT NULL DEFAULT '1',  
    `condition` char(100) NOT NULL DEFAULT '',  # 规则附件条件,满足附加条件的规则,才认为是有效的规则
    PRIMARY KEY (`id`),  
    UNIQUE KEY `name` (`name`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8;
-- ----------------------------
-- auth_group 用户组表， 
-- id：主键， title:用户组中文名称， rules：用户组拥有的规则id， 多个规则","隔开，status 状态：为1正常，为0禁用
-- ----------------------------
 DROP TABLE IF EXISTS `auth_group`;
CREATE TABLE `auth_group` ( 
    `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT, 
    `title` char(100) NOT NULL DEFAULT '', 
    `status` tinyint(1) NOT NULL DEFAULT '1', 
    `rules` char(80) NOT NULL DEFAULT '', 
    PRIMARY KEY (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=utf8;
-- ----------------------------
-- think_auth_group_access 用户组明细表
-- uid:用户id，group_id：用户组id
-- ----------------------------
DROP TABLE IF EXISTS `auth_group_access`;
CREATE TABLE `auth_group_access` (  
    `uid` mediumint(8) unsigned NOT NULL,  
    `group_id` mediumint(8) unsigned NOT NULL, 
    UNIQUE KEY `uid_group_id` (`uid`,`group_id`),  
    KEY `uid` (`uid`), 
    KEY `group_id` (`group_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;