XML文件简单操作

1读取XML文件

using System.Xml;

 public static string GetAppSetting(string appSettingName)
  {        
            XmlDocument _settings = new XmlDocument();
            string FileName = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase) + "\\我的应用程序.exe.config";
            StreamReader _sr = new StreamReader(FileName);       
            _settings.Load(_sr);     
            _sr.Close();
               
            foreach (XmlNode node in _settings["configuration"]["appSettings"])
            {             
                if (string.Compare(appSettingName, node.Attributes["key"].Value) == 0)
                {
                    return node.Attributes["value"].Value;
                }
            }
            return "";
        }