手动赋值增加多条件选择

RANGES: S_BUDAT FOR AFRU-BUDAT.
PARAMETERS:    P_RPMAX(6) TYPE N DEFAULT SY-DATUM+0(6)
  CONCATENATE P_RPMAX '01' INTO G_FIRST.
  CALL FUNCTION 'DATE_GET_MONTH_LASTDAY'
    EXPORTING
      I_DATE = G_FIRST
    IMPORTING
      E_DATE = G_LAST.

  CLEAR S_BUDAT.
  S_BUDAT-SIGN = 'I'.
  S_BUDAT-OPTION = 'BT'.
  S_BUDAT-LOW = G_FIRST.
  S_BUDAT-HIGH = G_LAST.
  APPEND S_BUDAT.

屏幕使用固定的月份选择，程序里再单独赋值月初到月底的日期。