HTML解析利器HtmlAgilityPack

参考地址：

http://zhoufoxcn.blog.51cto.com/792419/595344/

htmlagilitypack timeout 设置超时：[http://blog.jongallant.com/2012/07/htmlagilitypack-set-timeout/]

var web = new HtmlWeb();

web.PreRequest = delegate(HttpWebRequest webRequest)

{

webRequest.Timeout = 4000;//毫秒

return true;

};

var doc = web.Load("http://www.msn.com/");