C#读写Config配置文件

        /// <summary>
        /// 更新配置文件信息
      /// </summary>
        /// <param name="name">配置文件字段名称</param>
        /// <param name="Xvalue">值</param>
        public void UpdateConfig(string name, string Xvalue)
        {
            Configuration cfa = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            cfa.AppSettings.Settings[name].Value = Xvalue;
            cfa.Save();
            System.Configuration.ConfigurationManager.RefreshSection("appSettings");
        }

        /// <summary>
        /// 读取配置文件信息
      /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public string GetConfig(string name)
        {
            return System.Configuration.ConfigurationManager.AppSettings[name];
        }