XML 获得父级指定名称的元素

        /// <summary>
        /// 获得父级指定名称的元素
        /// </summary>
        /// <param name="xE"></param>
        /// <param name="pname"></param>
        /// <returns></returns>
        private XElement GetParentEle(XElement xE, string pname)
        {
            if (xE.Parent == null)
            {
                return null;
            }
            if (xE.Parent.Name.ToString() == pname)
            {
                return xE.Parent;
            }
            else
            {
                return GetParentEle(xE.Parent, pname);
            }
        }