????：改 UPDATE `user` SET `id` = 4 WHERE `id` = 2 增 INSERT INTO `user` VALUES('','','','') 刪 DELETE FROM
改
UPDATE `user` SET `id` = 4 WHERE `id` = 2
增
INSERT INTO `user` VALUES('','','','')
刪
DELETE FROM `user`WHERE `id` = 123
查
SELECT `name`AS ALIVE FROM `user` where `status`=1;
?? ???：韋小寶?? ??：2018-12-10 11:30:50
???? ??：你這就太簡潔了?。∠麓斡浀靡缴习咐趴梢耘?！課后多多練習！