常用来做会计区间累积
DO 6 TIMES VARYING V_DARXX FROM P0041-DAR01 NEXT P0041-DAR02 "工作时间 VARYING V_DATXX FROM P0041-DAT01 NEXT P0041-DAT02. IF V_DARXX = '03'. ITAB-DAT03 = V_DATXX."年休假起算日 ENDIF. ENDDO.
