这段c#代码,用vb.net如何写?

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Request.UrlReferrer != null)
                ViewState["UrlReferrer"] = Request.UrlReferrer.ToString();
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Redirect(ViewState["UrlReferrer"].ToString());
    }

答案：Protected Sub Page_Load(sender As Object, e As EventArgs) Handles   Me.Load 

 If Not IsPostBack Then
  If Request.UrlReferrer <> Nothing Then
   ViewState("UrlReferrer") = Request.UrlReferrer.ToString()
  End If
 End If
End Sub
Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles button1.Click
 Response.Redirect(ViewState("UrlReferrer").ToString())
End Sub

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