问C#从HttpWebRequest/WebResponse筛选JS文件

EN

string url = "some/url";
var request = (HttpWebRequest)HttpWebRequest.Create(url);
var webResponse = (HttpWebResponse)request.GetResponse();
var responseStream = webResponse.GetResponseStream();
var streamReader = new StreamReader(responseStream);  

HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(streamReader.ReadToEnd());

var scripts = doc.DocumentNode.Descendants()
                             .Where(n => n.Name == "script");

List<string> srcurl = new List<string>();
HtmlWeb hw = new HtmlWeb();
HtmlAgilityPack.HtmlDocument doc = hw.Load("some/url");
HtmlNodeCollection linkNodes = doc.DocumentNode.SelectNodes("//script[@src]");

foreach (HtmlNode linkNode in linkNodes)
   {
      HtmlAttribute link = linkNode.Attributes["src"];
      srcurl.Add(link.Value);
   }

doc.LoadHtml(streamReader.ReadToEnd());