Question

窗体上有两个文本框TextBox1和TextBox2，一个命令按钮Button1，编写下列程序：

Dim y As Integer
Private Sub Button1_Click(···) Handles Button1.Click
Dim x As Integer = 2
TextBox1.Text = p2(p1(x), y)
TextBox2.Text = p1(x)
End Sub
Private Function p1(x As Integer) As Integer
x = x + y
y = x + y
p1 = x + y
End Function
Private Function p2(x As Integer, y As Integer) As Integer
p2 = 2 * x + y
End Function
运行程序时，单击按钮后，文本框TextBox1和TextBox2中显示的信息是
A：2 4 B：10 10 C：8 4 D：4 4
ABCD哪个是正确答案呢？

Answer 1

x