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=Fun2(Fun1(x)，y) Text2.Text=Fun1(x) End Sub Private Function Fun1(x As Integer)As Integer x=x+y:y=x+y Fun1=x+y End Function Private Function Fun2(x As Integer，y As Integer)As Integer Fun2=2*x+y End Function 当单击1次和单击2次命令按钮后，文本框Textl和Text2内的值分别是
A．2 4
2 4
B．2 4
4 8
C．10 10
58 58
D．4 4
8 8