OpenXml开发 一个应用Xml的例子

  3private XmlDocument xmlDoc;
  4        //load xml file
  5        private void LoadXml()
  6        {
  7            xmlDoc=new XmlDocument();
  8            xmlDoc.Load("User.xml");
  9        }
 10        //添加节点
 11        private void AddElement()
 12        {             
 13            LoadXml();
 14            XmlNode xmldocSelect=xmlDoc.SelectSingleNode("user");             
 15            XmlElement el=xmlDoc.CreateElement("person"); //添加person节点
 16            el.SetAttribute("name","风云"); //添加person节点的属性"name"
 17            el.SetAttribute("sex","女");   //添加person节点的属性 "sex"
 18            el.SetAttribute("age","25");   //添加person节点的属性 "age"             
 19             XmlElement&n