如果它们具有某个属性，是否可以选择节点？我需要的节点都有“data-rel”属性。我想只选择具有该属性的节点，而不管“data-rel”属性值。
<a href="/someurl.php" data-rel="...">
我试过......
List<HtmlAgilityPack.HtmlNode> groups = doc.DocumentNode.SelectNodes("//a[contains(@data-rel)]").Distinct().ToList();
......无济于事。
答案 0 :(得分：2)
尝试//a[@data-rel]
请参阅http://www.w3schools.com/xpath/xpath_syntax.asp
//title[@lang] Selects all the title elements that have an attribute named lang
参考http://www.w3.org/TR/xpath/#path-abbrev
employee[@secretary and @assistant] selects all the employee children of the context node that have both a secretary attribute and an assistant attribute