增删改查sql数据库

//新增

INSERT `user` VALUES (null,'杨康',0,67,'yk@php.com',sha1(123456),1,1550396653);

//修改

UPDATE `user` SET `name` = '洪七公' WHERE id = 4

//查找

SELECT * FROM `user`WHERE id = 4

//删除

DELETE FROM `user` WHERE id = 6