Select the fields by which to sort the report. Fields can be sorted by up to four levels, each either ascending or descending. Grouped fields can only be sorted within each group.
选择对报表进行排序时所依据的字段。字段最多可以经过四级排序，每一级均可按升序或降序排序。组合在一起的字段只能在各自所在的组内进行排序。