linq to xml 初学 -- 查询语法

初学linq  to xml，很方便

string path = ch.GetConfigFile("")+ "SpeedDial.xml";
        var sdDoc = XDocument.Load(path);

            //linq to xml

       var query = from resource in sdDoc.Descendants("item")
                        where (int)resource.Attribute("parentId") ==
                        select new
                        {
                            Sn=resource.Element("sn").Value,
                            Name=resource.Element("name").Value,
                            Icon=resource.Element("icon").Value
                        };