Html Agility Pack簡單例子

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using HtmlAgilityPack;namespace DemoCnBlogs{class Program{static void Main(string[] args){HtmlWeb web = new HtmlWeb();HtmlDocument doc = web.Load("http://www.cnblogs.com/pick/");HtmlNode node = doc.GetElementbyId("post_list");StreamWriter sw = File.CreateText("log.txt");foreach(HtmlNode child in node.ChildNodes){if (child.Attributes["class"] == null || child.Attributes["class"].Value != "post_item")continue;HtmlNode hn = HtmlNode.CreateNode(child.OuterHtml);///如果用child.SelectSingleNode("//*[@class=/"titlelnk/"]").InnerText這樣的方式查詢，是永遠以整個document爲基準來查詢，///這點就不好，理應以當前child節點的html爲基準纔對。Write(sw, String.Format("推薦：{0}", hn.SelectSingleNode("//*[@class=/"diggnum/"]").InnerText));Write(sw, String.Format("標題：{0}", hn.SelectSingleNode("//*[@class=/"titlelnk/"]").InnerText));Write(sw, String.Format("介紹：{0}", hn.SelectSingleNode("//*[@class=/"post_item_summary/"]").InnerText));Write(sw, String.Format("信息：{0}", hn.SelectSingleNode("//*[@class=/"post_item_foot/"]").InnerText));Write(sw, "----------------------------------------");}sw.Close();Console.ReadLine();}static void Write(StreamWriter writer, string str){Console.WriteLine(str);writer.WriteLine(str);}}}

結果：

 

摘自：http://www.cnblogs.com/ITmuse/archive/2010/05/29/1747199.html