C#获取远程XML文档的方法

private XDocument GetXDocument(string url){  Uri uri = new Uri(url);  System.Net.WebClient wb = new System.Net.WebClient();  wb.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;  MemoryStream ms = new MemoryStream(wb.DownloadData(uri));  System.Xml.XmlTextReader rdr = new System.Xml.XmlTextReader(ms);  XDocument doc = XDocument.Load(rdr);  return doc;}