摘要: 身份证号加密 select concat(left(`visitors`.`Card_id`,3),'****',right(`visitors`.`Card_id`,4)) AS `Card_id` from userinfo 时段统计 select HOUR(itime) as hours,CO 阅读全文
posted @ 2020-02-12 11:47 不懂相处 阅读(120) 评论(0) 推荐(0) 编辑