//using System.Text;
    //using System.Xml;
    public void WriteInXml()
    {
        StringBuilder strxml = new StringBuilder();
        XmlDocument xmldoc = new XmlDocument(); //创建空的XML文档 
        strxml.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
        strxml.Append("<player showDisplay=\"yes\" showPlaylist=\"no\" autoStart=\"yes\">");
        strxml.Append("<song path=\"c/mp3/lovesfy.mp3\" title=\"古琴-汉宫秋月 古琴-汉宫秋月 古琴-汉宫秋月 古琴-汉宫秋月\"/>");
        strxml.Append("</player>");
        xmldoc.LoadXml(strxml.ToString());
        xmldoc.Save(Server.MapPath("map.xml")); //保存 
    }