IF A'EVENT AND A='1'THEN是什么意思?BEGINIF A'EVENT AND A='1'THENCASE NEXT_STATE IS WHEN S0 =>NEXT_STATENEXT_STATE NEXT_STATE NEXT_STATENEXT_STATE

IF A'EVENT AND A='1'THEN是什么意思?
BEGIN
IF A'EVENT AND A='1'THEN
CASE NEXT_STATE IS
WHEN S0 =>NEXT_STATENEXT_STATE NEXT_STATE NEXT_STATENEXT_STATE

就是如果A存在 并且 A=1!那么.
这个是个并列语句 就是2个条件缺一不可 否则无法进行下面的程序

事件A存在并且A值为1