text: use sys;
  create table User(
  id int not null auto_increment,
  userName char(50) not null,
  avatar char(255),
  age int,
  tel char(20) not null,
  primary key(id)
  );
  insert into user(userName,avatar,age,tel) values (
  "cyq",
  "http://img.jrjimg.cn/2019/07/20190730115116381.jpg",
  20,
  "18880345672");
  select * from user;
  
  create table admin(
  id int not null auto_increment,
  name char(50) not null,
  pwd char(20) not null,
  primary key(id)
  );
  
  insert into admin(name,pwd) values ("admin","amm123");