带多个Tab的选择屏幕

SELECTION-SCREEN BEGIN OF TABBED BLOCK tabb1 FOR 12 LINES.
SELECTION-SCREEN TAB (10) text-001 USER-COMMAND ucomm1
 DEFAULT SCREEN 101.
SELECTION-SCREEN TAB (10) text-002 USER-COMMAND ucomm2
 DEFAULT SCREEN 102.
SELECTION-SCREEN TAB (10) text-003 USER-COMMAND ucomm3
 DEFAULT SCREEN 103.
SELECTION-SCREEN END OF BLOCK tabb1.
SELECTION-SCREEN BEGIN OF SCREEN 101 AS SUBSCREEN.
PARAMETER: p_field1 TYPE i.
SELECTION-SCREEN END OF SCREEN 101.
SELECTION-SCREEN BEGIN OF SCREEN 102 AS SUBSCREEN.
PARAMETER: p_field2 TYPE i.
SELECTION-SCREEN END OF SCREEN 102.
SELECTION-SCREEN BEGIN OF SCREEN 103 AS SUBSCREEN.
PARAMETER: p_field3 TYPE i.
SELECTION-SCREEN END OF SCREEN 103.