public static XElement WithoutNamespaces(this XElement element)        {            if (element == null) return null;            #region delegates:            Func
        
          getChildNode = e => (e.NodeType == XmlNodeType.Element) ? (e as XElement).WithoutNamespaces() : e;            Func
         
          > getAttributes = e => (e.HasAttributes) ?                e.Attributes()                    .Where(a => !a.IsNamespaceDeclaration)                    .Select(a => new XAttribute(a.Name.LocalName, a.Value))                :                Enumerable.Empty
          
           ();            #endregion            return new XElement(element.Name.LocalName,                element.Nodes().Select(getChildNode),                getAttributes(element));        }
          
         
        

　　调用

var xDoc = XDocument.Parse(xml); var xRoot = xDoc.Root.WithoutNamespaces();