解析 WEB 中所有 URL 的简单牛B代码，先保存起来，方式将来找不到了

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using Ivony.Fluent;
using Ivony.Web.Html;
using Ivony.Web.Html.Parser;
using Ivony.Web.Html.HtmlAgilityPackAdaptor;
using HtmlAgilityPack;

namespace Html解析
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            var client = new WebClient();
            var html = client.DownloadString("http://www.cnblogs.com/");

            var parser = new JumonyParser();
            var document = parser.Parse(html);

            var links = document.Find("a[href]");


            var baseUrl = new Uri("http://www.cnblogs.com");

            var data = from hyperLink in links
                       let url = new Uri(baseUrl, hyperLink.Attribute("href").Value())
                       orderby url.AbsoluteUri
                       select new
                       {
                           Url = url.AbsoluteUri,
                           IsLinkingOut = !url.Host.EndsWith("cnblogs.com"),
                           Target = hyperLink.Attribute("target").Value() ?? "_self"
                       };

            GridView1.DataSource = data;
            GridView1.DataBind();

        }
    }
}