``` DELETE FROM `pre_ucenter_pm_lists` WHERE 1 ; DELETE FROM `pre_ucenter_pm_members` WHERE 1 ; DELETE FROM `pre_ucenter_pm_members` WHERE 1 ; DELETE FROM `pre_ucenter_pm_messages_0` WHERE 1 ; ...
``` DELETE FROM `pre_ucenter_pm_lists` WHERE 1 ; DELETE FROM `pre_ucenter_pm_members` WHERE 1 ; DELETE FROM `pre_ucenter_pm_members` WHERE 1 ; DELETE FROM `pre_ucenter_pm_messages_0` WHERE 1 ; ...
``` pre_home_notification 这个表是通知消息表 ``` 如何一些不良内容或者消息过多可以进入清理
``` pre_common_nav ```