窗体上有Text1、Text2两个文本框及一个命令按钮Command1,编写下列程序: Dim y As Integer Private Sub Command1_Click() Dim x As Integer x=2 Text1.Text=p2(pl(x),y) Text2.Text=pl(x) End Sub Private Function pl(x As Integer)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,文本框Text1和Text2内的值分别是( )。