Instance One : SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-100. SELECTION-SCREEN BEGIN OF LINE. PARAMETERS:P_ON1 RADIOBUTTON GROUP RAD1 DEFAULT 'X'. "Display SELECTION-SCREEN PUSHBUTTON 04(8) TEXT-101 USER-COMMAND UC1. SELECTION-SCREEN C…
Loop at screen会loop处理屏幕上的每一个组件,并对其做相应的处理. SELECTION-SCREEN: BEGIN OF BLOCK B1 WITH FRAME.PARAMETERS S_DATE TYPE DATUM DEFAULT SY-DATUM MODIF ID OO.SELECTION-SCREEN: END OF BLOCK B1. SELECTION-SCREEN: BEGIN OF BLOCK B2 WITH FRAME.SELECT-OPTIONS: S_D…