process date use functions

some useful functions to process date:

CALL FUNCTION 'DATE_GET_MONTH_LASTDAY'  "获取本月最后一天
  EXPORTING
    i_date = l_tempdata_s
  IMPORTING
    e_date = l_tempdata_e.

 

CALL FUNCTION 'BKK_GET_MONTH_LASTDAY'   "获取本月最后一天
  EXPORTING
    i_date = riqi1
  IMPORTING
    e_date = riqi2.

 

CALL FUNCTION 'MONTH_PLUS_DETERMINE'  "获取N月前的日期
  EXPORTING
    months        = -N
    olddate       = sy-datum
 IMPORTING
   NEWDATE       = newdate.

 

CALL FUNCTION 'MONTHS_BETWEEN_TWO_DATES'          "计算两个日期间的月份差
  EXPORTING
    i_datum_bis         = p_l_startday
    i_datum_von         = P_l_endday
*   I_KZ_INCL_BIS       = ' '
 IMPORTING
   E_MONATE            = p_l_months