摘要：Create例如：CREATE TABLE `test` ( `id` INT NOT NULL AUTO_INCREMENT , `user` INT NOTNULL , `status` INT NOT NULL ,
Create
例如：CREATE TABLE `test` ( `id` INT NOT NULL AUTO_INCREMENT , `user` INT NOTNULL , `status` INT NOT NULL , `create_time` INT NOT NULL , PRIMARY KEY (`id`))ENGINE = InnoDB;
Update
例如：INSERT INTO `test` (`id`, `user`, `status`, `create_time`) VALUES (NULL, '101', '1', '123');
UPDATE `test` SET `user` = '112233' WHERE `test`.`id` = 1;
Read：
例如：SELECT COUNT(*) AS Number FROM `test`;
Delete：
例如：DELETE FROM `test` WHERE `test`.`id` = 1;
批改老师：天蓬老师批改时间：2018-12-25 13:08:52
老师总结：写得真简单, 不知是否记住了, 还得多多练习
