ABAP 捕获回车键

*&---------------------------------------------------------------------*
*& Report  ZHUICHE001
*&
*&---------------------------------------------------------------------*
*&捕捉回车键
*&
*&---------------------------------------------------------------------*

REPORT  ZHUICHE001.

TABLES:MAKT.

DATA:OK-CODE TYPE SY-UCOMM.

PARAMETERS:P_MATNR TYPE MAKT-MATNR,
           P_MAKTX TYPE MAKT-MAKTX.

AT SELECTION-SCREEN.
  CASE OK-CODE.
    WHEN ' '.
     SELECT SINGLE MAKTX INTO P_MAKTX FROM MAKT WHERE MATNR = P_MATNR.

*      WHEN .
*      WHEN OTHERS.
  ENDCASE.