函数：求输入日期当月最后一天的日期

CALL FUNCTION 'FIMA_DATE_CREATE'"求本月最后一天
    EXPORTING
      i_date                        = u_date_first
*     I_FLG_END_OF_MONTH            = ' '
*     I_YEARS                       = 0
*     I_MONTHS                      = 0
*     I_DAYS                        = 0
      i_calendar_days               = 0
      i_set_last_day_of_month       = 'X'
    IMPORTING
      e_date                        = c_date_end .
*     E_FLG_END_OF_MONTH            =
*     E_DAYS_OF_I_DATE              =        .