操作xml

XmlDocument xd = new XmlDocument();
        string xmlPath = Server.MapPath("default_menu.xml");
        string xmlcon = string.Empty;
        if (File.Exists(xmlPath))
        {
            StreamReader sr = File.OpenText(xmlPath);
            xmlcon = sr.ReadToEnd();
        }

        xd.LoadXml(xmlcon);

        XmlNode xn = xd.SelectSingleNode("Menu");
        string xmlname = string.Empty;
        if (xn.ChildNodes.Count > 0)
        {
            for (int i = 0; i < xn.ChildNodes.Count; i++)
            {
                xmlname += "<div><h2>" + xn.ChildNodes[i].Name + "</h2></div>";
                if (xn.ChildNodes[i].ChildNodes.Count > 0)
                {
                    for (int j = 0; j < xn.ChildNodes[i].ChildNodes.Count; j++)
                    {
                        xmlname += "<div>" + xn.ChildNodes[i].ChildNodes[j].Attributes["text"].Value + "</div><br/>";
                    }
                }
            }
        }