1.建立用户信息表
create table userinfo(id int(4) not null primary key, name varchar(20) not null unique key)engine=innodb default charset=utf8;create table userinfo(id int(4) not
1.建立用户信息表
create table userinfo(id int(4) not null primary key, name varchar(20) not null unique key)engine=innodb default charset=utf8;create table userinfo(id int(4) not