在vb2005里的按顺序显示字符串的代码哪里不对?
Private Sub Button1_Click(ByVal Sender As System.Object, ByVal e As System.EventArgs)
Handles Button1.Click
TextBox1.Text = Add(Button1.Text)
End Sub
Private Sub Button2_Click(ByVal Sender As System.Object, ByVal e As System.EventArgs)
Handles Button2.Click
TextBox1.Text = Add(Button2.Text)
End Sub
Private Sub Button3_Click(ByVal Sender As System.Object, ByVal e As System.EventArgs)
Handles Button3.Click
TextBox1.Text = Add(Button3.Text)
VB2005说这里不对,我该用什么语句啊?交我啊 谢谢