单击按钮时,以下列程序运行后的输出结果是 Private Sub proc1(x As Integer,y As Integer,z As Integer) x=3*z y=2*z z=X+y End Sub Private Sub Command1_Click( ) Dim x As Integer,y As Integer,z As Integer x=1:y=2:z=3 Call proc1(x,x,2) Print x;x;z Call proc1(x,y,y) Print x;y;y End Sub