Try
Dim s As String = "http://www.csdn.net/Login.aspx?t=YWYBfvgYp9Nqztx0TDn3o5k7z9HpZCW0QYJdafR8VYkmYDXaZt0h2c96RV2M3WVZ5s48jVQ5Hse5NHzZB2hGef3TOIEBv23hkzfz1KFJyT84ZmSJYTlSPQ1%2f8ivaMqf34pFN5bkbXYjm72xwOr95LMHjAA9KtEWiKYyg%2bwn3Vqk%3d"
HttpContext.Current.Response.Redirect(s)
Catch ex As Exception
HttpContext.Current.Response.Redirect("/")
End Try
Dim s As String = "http://www.csdn.net/Login.aspx?t=YWYBfvgYp9Nqztx0TDn3o5k7z9HpZCW0QYJdafR8VYkmYDXaZt0h2c96RV2M3WVZ5s48jVQ5Hse5NHzZB2hGef3TOIEBv23hkzfz1KFJyT84ZmSJYTlSPQ1%2f8ivaMqf34pFN5bkbXYjm72xwOr95LMHjAA9KtEWiKYyg%2bwn3Vqk%3d"
HttpContext.Current.Response.Redirect(s)