一、处理顺序图 二、处理说明 1、程序首先执行INITIALIZATION 事件; 2、接着执行AT SELECTION SCREEN OUTPUT事件(也就是PBO) ,在这个事件里你可以通过修改系统默认screen内表修改屏幕的某些属性;PARAMETERS: TEST1(10) MODIF ID SC1, TEST2(10) MODIF ID SC2, TEST3(10) MODIF ID SC1, TEST4(10) MODIF ID SC2.AT SELECTION-SCREEN OUTPUT.LOOP AT SCREEN. IF SCREEN-GROUP1 = 'SC1'. SCREEN-INTENSIFIED = '1'. MODIFY SCREEN. CONTINUE. ENDIF. IF SCREEN-GROUP1 = 'SC2'. SCREEN-INTENSIFIED = '0'. MODIFY SCREEN. ENDIF.ENDLOOP. 3、系统将屏幕输出