常用CURD
#增 INSERT `user` VALUES (null,'a1',0,34,'a1@php.cn',sha1(123456),1,1550302697); #查 SELECT `name`,`sex`,`age`,`email` FROM `user` WHERE `id`=3 #改 UPDATE `user` SET `age`=66 WHERE `id`=3 #删 DELETE FROM `user` WHERE `id`=3
#增 INSERT `user` VALUES (null,'a1',0,34,'a1@php.cn',sha1(123456),1,1550302697); #查 SELECT `name`,`sex`,`age`,`email` FROM `user` WHERE `id`=3 #改 UPDATE `user` SET `age`=66 WHERE `id`=3 #删 DELETE FROM `user` WHERE `id`=3