MySQL 替换手机号码中间4位为星号显示 select REPLACE(tel,SUBSTR(tel,4,4),\'****\') tel from rwork_uinfo where comp_id = 3722 查询结果: 相关文章: 2021-12-15 2021-12-07 2021-11-27 2021-12-20 2021-11-27 2021-11-27 2021-11-27 2021-08-06