CREATE DATABASE IF NOT EXISTS `shop`;
USE `shop`; drop table if exists lidepeng; create table lidepeng( id int auto_increment primary key , username varchar(5) not null default "", password varchar(10) not null not null default "", ptime int );本文共 296 字，大约阅读时间需要 1 分钟。
CREATE DATABASE IF NOT EXISTS `shop`;
USE `shop`; drop table if exists lidepeng; create table lidepeng( id int auto_increment primary key , username varchar(5) not null default "", password varchar(10) not null not null default "", ptime int );转载于:https://www.cnblogs.com/lidepeng/p/5914172.html