两个界面都是 

一个screen 是1002 一个是1007 两个都要改

代码控制显示 输入 

MODULE FRM_MDF_SCREEN OUTPUT.
  DATA:lmblnr TYPE matdoc-MBLNR.
  DATA:lmjahr TYPE matdoc-MJAHR.
  FIELD-SYMBOLS:<FS_MBLNR> TYPE matdoc-MBLNR,
        <FS_MJAHR> TYPE ANY,
        <FS_action> TYPE any,
        <FS_ZZPLUSL> TYPE ANY.
  IF cobl-AWKEY is not INITIAL.
    lmblnr = cobl-AWKEY+0(10).
    lmblnr = cobl-AWKEY+10(4).
  SELECT SINGLE zzplusl  from matdoc
    where mblnr = @lmblnr and mjahr = @lmjahr and zzplusl is not INITIAL
    INTO @cobl-ZZPLUSL .

     ASSIGN ('(SAPLKACB)COBL-ZZPLUSL') TO <FS_ZZPLUSL>.
     if <FS_zzplusl> is ASSIGNED.
       <FS_zzplusl> = cobl-ZZPLUSL.
     endif.
  endif.
  IF sy-tcode = 'FB01' OR sy-tcode = 'FB02'.
    LOOP AT SCREEN.
      IF SCREEN-NAME+0(7) = 'COBL-ZZ'.
        SCREEN-INPUT = 1.
        SCREEN-OUTPUT = 1.
        SCREEN-ACTIVE = 1.
        SCREEN-INVISIBLE = 0.
        MODIFY SCREEN.
      ENDIF.
    ENDLOOP.
  elseIF sy-tcode = 'FB03'.
    LOOP AT SCREEN.
      IF SCREEN-NAME+0(7) = 'COBL-ZZ'.
        SCREEN-OUTPUT = 1.
        SCREEN-ACTIVE = 1.
        SCREEN-INVISIBLE = 0.
        MODIFY SCREEN.
      ENDIF.
    ENDLOOP.
  elseif sy-tcode = 'MIGO' OR sy-tcode = 'ZMB1A'.
      ASSIGN ('(SAPLMIGO)GODYNPRO-ACTION') TO <FS_ACTION>.
      ASSIGN ('(SAPLMIGO)GODYNPRO-MAT_DOC') TO <FS_mblnr>.
      ASSIGN ('(SAPLMIGO)GODYNPRO-DOC_YEAR') TO <FS_mjahr>.
*      ASSIGN ('(SAPLMIGO)COBL-ZZPLUSL') TO <FS_ZZPLUSL>.
      if <FS_ACTION> is  ASSIGNED AND <FS_mblnr> is ASSIGNED AND  <FS_mjahr> is ASSIGNED .
      SELECT SINGLE zzplusl  FROM matdoc
      WHERE mblnr = @<FS_mblnr> AND mjahr = @<FS_mjahr> AND zzplusl IS NOT INITIAL
      INTO @COBL-ZZPLUSL .
    LOOP AT SCREEN.
      IF SCREEN-NAME+0(7) = 'COBL-ZZ'.
         if <FS_ACTION> = 'A04' .
          SCREEN-OUTPUT = 1.
          SCREEN-ACTIVE = 1.
          SCREEN-INVISIBLE = 0.
          MODIFY SCREEN.
        else.
          SCREEN-INPUT = 1.
          SCREEN-OUTPUT = 1.
          SCREEN-ACTIVE = 1.
          SCREEN-INVISIBLE = 0.
          MODIFY SCREEN.
        ENDIF.
      endif.
    ENDLOOP.
   ENDIF.
  endif.