单项选择题有如下程序: Private Sub Command1_Click() as= A WORKER IS HERE x = Len(a$) For i=1 To x - 1 b$ =Mid$(a$, i,3) If b$ = WOR Then S=S+ 1 Next Print S End Sub 单击命令按钮,程序运行结果为
单项选择题下面叙述中不正确的是