select id, content, user_id, by_user_id,img_url, create_time, update_time, remark from app_inform
insert into app_inform
user_id,by_user_id,content,img_url,create_time,update_time,remark,#{userId},#{byUserId},#{content},#{imgUrl},#{createTime},#{updateTime},#{remark},
update app_inform
user_id = #{userId},by_user_id = #{byUserId},content = #{content},img_url = #{imgUrl},create_time = #{createTime},update_time = #{updateTime},remark = #{remark},
where id = #{id}
delete from app_inform where id = #{id}
delete from app_inform where id in
#{id}