在窗体上添加一个名称为Command1的命令按钮,再添加两个名称分别为Label1、Label2的标签,然后编写如下程序代码:Private x As IntegerPrivate Sub Command1_Click(
a=6:b=4
Call sub1(a, b)
Label1.Caption = a
Label2.Caption = b
End Sub
Private Sub sub1(ByVal x As Integer, ByVal y As Integer)
a=X*X
b=y*y
End Sub程序运行后单击命令按钮，则两个标签中显示的内容分别是_______。
A
36和4
B
6和4
C
36和8
D
6和8