mysql 插入更新
INSERT INTO `user`(id ,mobile) VALUES (255,'15801512') ON DUPLICATE KEY UPDATE id = 255, mobile = 88888
如果没有这条记录就插入,如果就更新
INSERT INTO `user`(id ,mobile) VALUES (255,'15801512') ON DUPLICATE KEY UPDATE id = 255, mobile = 88888
如果没有这条记录就插入,如果就更新