C#操作xml

 1XmlDocument xmlDocument = new XmlDocument();
 2                XmlNodeList NodeListControls;
 3                XmlNodeList node_style_status;
 4                string path = System.Windows.Forms.Application.StartupPath;
 5                int end = path.LastIndexOf("\\", path.Length);
 6                //path = path.Substring(0, end);
 7                XmlDocument xmlDocumentRuleName = new XmlDocument();
 8                XmlNodeList NodeListRuleName;
 9                if (strXML != null)
10                {
11                    xmlDocument.Load(strXML);
12                    node_style_status = xmlDocument.SelectNodes("/xml/stylestatus");
13                    style_status = Convert.ToInt32(node_style_status[0].InnerText);
14                    //MessageBox.Show(style_status.ToString());
15                    Select_Style(style_status);
16                    NodeListControls = xmlDocument.SelectNodes("/xml/item");
17                    xmlDocumentRuleName.Load(path + "\\XMLFileRules.xml");
18                    NodeListRuleName = xmlDocumentRuleName.SelectNodes("/xml/item");
19                    for (int i = 0; i < NodeListControls.Count; i++)
20//NodeListControls[i].ChildNodes[0].InnerText;