text: create table `admin`(
  	`id` tinyint unsigned not null auto_increment comment 'id',
  	`name` varchar(30) character set utf8 collate utf8_general_ci not null comment '登陆名',
  	`password` varchar(32) character set utf8 collate utf8_general_ci not null comment '登陆密码',
  	`portrait` varchar(100) character set utf8 collate utf8_general_ci not null comment '头像',
  	`login_time` varchar(50) character set utf8 collate utf8_general_ci not null comment '登陆时间',
  	`logout_time` varchar(50) character set utf8 collate utf8_general_ci not null comment '退出时间',
  	`level` tinyint not null comment '权限',
  	primary key (`id`)		
  );