update applet_announcement set is_del=1 where id=#{id} delete from applet_announcement where id=#{id} update applet_announcement id = #{id}, sort = #{sort}, title = #{title}, abstracts = #{abstracts}, announcement = #{announcement}, announcement_text = #{announcement_text}, author = #{author}, reading_volume = #{reading_volume}, create_time = #{create_time}::timestamp, is_del = #{is_del}, update_time = current_timestamp where id = #{id}