单项选择题

单击命令按钮时，下列程度段的执行结果为( )。 Private Sub Command1_Click() Dim a As Integer, b As Integer, c As Integer a=2:b=4:c=6 Call S1(a, B) Print "a="; a; "b="; b; "c="; c Call S2(a, B) Print "a ="; a; "b ="; b; "c="; c; End Sub Private Sub S1(x As Integer, y As Integer) Dim c As Integer x=2*x:y=y+2:c=x+y End Sub Sub S2(x As Integer, ByVal y As Integer) Dim e As Integer x=2*x:y=y+2:c=x+y End Sub

点击查看答案&解析