Dim url, host_url, no_http, host_name As String ‘定义变量url = HttpContext.Current.Request.Url.ToString ‘获取当前页的URLno_http = url.Substring(url.IndexOf(“//”) + 2) ‘截取去掉HTTP://的URLhost_url = “http://” & no_http.Substring(0, no_http.IndexOf(“/”) + 1)