后台管理端删除聊天记录，新增新增头像，用户管理删选条件等

baizonghao

2023-05-22 aa8836a65e97e297340fff3a42615f0a36f314e7

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package com.example.jz.dao;
 
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.example.jz.modle.entity.PoliceAnnouncement;
 
public interface PoliceAnnouncementDao extends BaseMapper<PoliceAnnouncement> {
}