CREATE TABLE IF NOT EXISTS `user` (
`userid` int(5) unsigned NOT NULL AUTO_INCREMENT,
`username` varchar(20) NOT NULL,
`password` varchar(20) NOT NULL DEFAULT '',
PRIMARY KEY (`userid`),
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='操作员';
1. INSERT INTO `user` (`userid`, `username`, `password`) VALUES (5, 'llck', '');
// 此方法必须保证AUTO_INCREMENT对应的值是正确的.
2.INSERT INTO `user` (`userid`, `username`, `password`) VALUES (null, 'adm', '');
或:INSERT INTO `user` (`userid`, `username`, `password`) VALUES ('', 'adm', '');
// 此方法不要求输入AUTO_INCREMENT对应的值,MySql会自动计算.
推荐第2种方法