将树保存到HtmlAgilityPack的变量

Question

我是C＃中的新手。我正在寻找HtmlAgilityPack中的类似功能。在名为BeautifulSoup的Python解析库中存在名为contents的函数。我如何通过HtmlAgility完成这项工作？

Answer 1

好了，先把文档根拥有所有内容

//create a new document 
var _htmlDoc = new HtmlAgilityPack.HtmlDocument(); 

//fill it with html 
_htmlDoc.Load(filePath) or _htmlDoc.LoadHtml(string...) 

//get the document root node - it has all the contents 
var docuemntNode = _htmlDoc.DocumentNode; 

然后...使用LINQ或XPath查询的节点

string xpathExpressionSting = "//p"; 
var contents = htmlDoc.DocumentNode.SelectNodes(xpathExpressionSting) 
//this would get paragraph tag nodes