（30）窗体上有两个文本框Text1、Text2以及一个命令按钮Commandl,编写下列程序： Dim y As Integer Private Sub Commandl_Click() Dim x As Integerx=2 Text1.Text=p2(pl(x),y) Text2.Text=p2(x) End Sub Private Function p2(x As Integer,y As Integer) x=x+y：y=x+y pl=x+y End Function Private Function p2(x As Integer,y As Integer)As Integer p2=2*x+y End Function 当单击1次和单击2次命令按钮后，文本框Text1和Text2内的值分别为（ ）。A.2 4 B.2 4 C.4 4 D.10 10 2 4 4 8 8 8 58 58