using System;using System.Collections.Generic;using System.Linq;using System.Net;using System.Text;using System.Text.RegularExpressions;using System.Threading.Tasks;namespace ConsoleApplication1{  class Program  {    static void Main(string[] args)    {      WebClient wc = new WebClient();      wc.Encoding = Encoding.UTF8;      string html = wc.DownloadString("http://www.lagou.com/");      MatchCollection matches = Regex.Matches(html, "<a.*jobs.*>(.*)</a>");      foreach (Match item in matches)      {        Console.WriteLine(item.Groups[1].Value);      }      Console.WriteLine(matches.Count);      Console.ReadKey();      }  }}