我正在使用Linq来解析XML,但它没有返回任何结果:XML:citycompanyname代码:publicclassMerc{publicstringCompanyName{get;set;}}using(XmlReaderreader=XmlReader.Create(newStringReader(result))){XDocumentdoc=XDocument.Load(reader,LoadOptions.SetLineInfo);Listm=(fromdownloadInfoReturnindoc.Descendants("downloadInfoReturn")sele