How to Get Name of Months in ABAP/4

1 使用数据表 ’T247’
DATA: it_month_name TYPE TABLE OF t247 WITH HEADER LINE.
SELECT * INTO TABLE it_month_name FROM T247
       WHERE spras = sy-langu.

2 使用函数’MONTH_NAMES_GET’
DATA: it_month_name TYPE TABLE OF t247 WITH HEADER LINE.
CALL FUNCTION ’MONTH_NAMES_GET’     
  EXPORTING         
    LANGUAGE                         = SY-LANGU
*    IMPORTING
*        RETURN_CODE                 =     
  TABLES         
    MONTH_NAMES                      = it_month_name
  EXCEPTIONS         
    MONTH_NAMES_NOT_FOUND            = 1         
    OTHERS                           = 2        
  . 
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*                WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4. 
ENDIF.