选择屏幕参数追加字段描述

1、选择屏幕画面设定：

SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-T01.
"Project
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 01(31) FOR FIELD P_PSPID.
PARAMETERS: P_PSPID     LIKE ZTA0ESB20200-PSPID
                             MEMORY ID EPID OBLIGATORY.
SELECTION-SCREEN : POSITION 60.
PARAMETERS: P_PSPIDT    LIKE ZTA0PSA00310T-SNAME.
SELECTION-SCREEN END OF LINE.

"ES Group
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 01(31) FOR FIELD P_GROUP.
PARAMETERS: P_GROUP     LIKE ZTA0ESB20300-ES_GROUP
                             MEMORY ID EGRP OBLIGATORY.
SELECTION-SCREEN : POSITION 60.
PARAMETERS: P_GROUPT    LIKE ZTA0PSA00310T-SNAME.
SELECTION-SCREEN END OF LINE.

SELECTION-SCREEN END OF BLOCK B1.

2、选择屏幕PBO设定：

***********************************************************************
*** AT SELECTION-SCREEN
***********************************************************************
AT SELECTION-SCREEN OUTPUT.

  PERFORM F_INPUT_SCR_OUTPUT.

FORM F_INPUT_SCR_OUTPUT .

  LOOP AT SCREEN.
    IF SCREEN-NAME = 'P_PSPIDT' OR SCREEN-NAME = 'P_GROUPT'.
      SCREEN-INPUT = GC_0.
      SCREEN-DISPLAY_3D = 0.
      MODIFY SCREEN.
    ENDIF.
  ENDLOOP.

ENDFORM.                    " F_INPUT_SCR_OUTPUT

 3、描述赋值

P_PSPIDT = 'AAA'.