<html>
<body>
<div class="main">
<div class="submain"><h2></h2><p></p><ul></ul>
</div>
<div class="submain"><h2></h2><p></p><ul></ul>
</div>
</div>
</body>
</html>
我将html加载到HtmlDocument
中。然后我选择XPath作为submain
。然后我不知道如何分别访问每个标签,即h2
、p
。
HtmlAgilityPack.HtmlNodeCollection nodes = doc.DocumentNode.SelectNodes("//div[@class="submain"]");
foreach (HtmlAgilityPack.HtmlNode node in nodes) {}
如果我使用node.InnerText
,我会得到所有的文本,而InnerHtml
也没有用处。如何选择单独的标签?
以下内容将有所帮助:
HtmlAgilityPack.HtmlNodeCollection nodes = doc.DocumentNode.SelectNodes("//div[@class="submain"]");
foreach (HtmlAgilityPack.HtmlNode node in nodes) {
//Do you say you want to access to <h2>, <p> here?
//You can do:
HtmlNode h2Node = node.SelectSingleNode("./h2"); //That will get the first <h2> node
HtmlNode allH2Nodes= node.SelectNodes(".//h2"); //That will search in depth too
//And you can also take a look at the children, without using XPath (like in a tree):
HtmlNode h2Node = node.ChildNodes["h2"];
}
您正在寻找后裔
var firstSubmainNodeName = doc
.DocumentNode
.Descendants()
.Where(n => n.Attributes["class"].Value == "submain")
.First()
.InnerText;
根据内存,我相信每个Node
都有自己的ChildNodes
集合,因此在您的for…each
块中,您应该能够检查node.ChildNodes
。