update class_grade set class_status = #{classStatus},official_name = #{officialName},class_name = #{className}, class_start_time = #{classStartTime},class_end_time = #{classEndTime},learning_status = #{learningStatus},learning_time_start = #{learningTimeStart} where 1 = 1 AND grade_id in #{item} update class_grade set register_code = official_name where 1 = 1 AND grade_id in #{item} update class_grade set interface_push_id = #{interfacePushId} where grade_id = #{gradeId}