SELECTION-SCREEN  BEGIN  OF  BLOCK b1  WITH  FRAME  TITLE  text - 001 . 
PARAMETERS p_r RADIOBUTTON GROUP g1 USER-COMMAND select DEFAULT 'X' . "日模式
PARAMETERS p_y RADIOBUTTON GROUP g1 . "月模式
SELECTION-SCREEN END OF BLOCK b1 .


SELECTION-SCREEN BEGIN OF BLOCK b2 WITH FRAME TITLE T1 .
SELECT-OPTIONS :
s_bukrs FOR bsid -bukrs . " 公司代码
SELECTION-SCREEN END OF BLOCK b2 .


AT SELECTION-SCREEN OUTPUT .
IF p_r IS NOT INITIAL.
t1 = '日'
ELSE.
t1 = '月'
ENDIF.


这样就行了。

SELECTION-SCREEN  BEGIN  OF  BLOCK  b2  WITH  FRAME  TITLE  T1 .

这里已经声明了t1这个变量,不需要重新定义



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