获取XML节点值得办法

try
            {
                string filePath = Path.Combine(System.Windows.Forms.Application.StartupPath, "文件名称.XML");
                XmlDocument xmlDoc = ConfigUtil.Instance.LoadXml(filePath);

                string Test = GetValueEX(xmlDoc, "节点名称");
             
                
               
            }
            catch
            {

            }