抢火车票利器：分享一个抓取火车票转让信息的小程序

代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.ComponentModel;
using System.Threading;
using System.Text.RegularExpressions;
using System.Diagnostics;

namespace HuoChePiao
{
    class Program
    {
        private static HashSet<string> results;
        private static WebClient wc;
        private static List<Site> sites;
        private static int index;
        private static bool isFirstRound;
        
        static void Main(string[] args)
        {
            sites = new List<Site>();
            
            sites.Add(new Site()
            {
                Name = "火车票网",
                Url = "http://www.huochepiao.com/City/SearchCheCi.asp?leixing=%D7%AA%C8%C3&zhuti=t189&psearch=%C7%F3%B9%BA%2F%D7%AA%C8%C3%BC%EC%CB%F7",
                RegexPattern = @"· <A href=(.*?) target=_blank>(.*?)</a>",
                Encoding = Encoding.Default
            });
            
            sites.Add(new Site()
            {
                Name = "百姓网",
                Url = "http://beijing.baixing.com/huochepiao/?%E8%BD%A6%E6%AC%A1=T189",
                RegexPattern = @""" ><a href="http://t.zoukankan.com/aaa6818162-p-1943532.html"/(.*?)"">(.*?)</a></td>",
                Encoding = Encoding.UTF8,
                Domain = "http://beijing.baixing.com/",
                Keys = new string[] { "卧" }
            });

            sites.Add(new Site()
            {
                Name = "百姓网",
                Url = "http://beijing.baixing.com/huochepiao/?%E8%BD%A6%E6%AC%A1=T5",
                RegexPattern = @""" ><a href="http://t.zoukankan.com/aaa6818162-p-1943532.html"/(.*?)"">(.*?)</a></td>",
                Encoding = Encoding.UTF8,
                Domain = "http://beijing.baixing.com/",
                Keys = new string[] { "卧" }
            });
   
            sites.Add(new Site()
            {
                Name = "酷讯网",
                Url = "http://huoche.kuxun.cn/zhuanrang-checi-beijing-T189.html?type=1",
                RegexPattern = @"<span class=""col_11 left""><a target=""_blank"" href="http://t.zoukankan.com/aaa6818162-p-1943532.html"(.*)"">(.*)</a>",
                Encoding = Encoding.UTF8
            });

            sites.Add(new Site()
            {
                Name = "酷讯网",
                Url = "http://huoche.kuxun.cn/zhuanrang-checi-beijing-T5.html?type=1",
                RegexPattern = @"<span class=""col_11 left""><a target=""_blank"" href="http://t.zoukankan.com/aaa6818162-p-1943532.html"(.*)"">(.*)</a>",
                Encoding = Encoding.UTF8
            });

            sites.Add(new Site()
            {
                Name = "酷讯网",
                Url = "http://huoche.kuxun.cn/zhuanrang-checi-beijing-k185.html?type=1",
                RegexPattern = @"<span class=""col_11 left""><a target=""_blank"" href="http://t.zoukankan.com/aaa6818162-p-1943532.html"(.*)"">(.*)</a>",
                Encoding = Encoding.UTF8
            });

            sites.Add(new Site()
            {
                Name = "清华网",
                Url = "http://www.newsmth.net/bbsbfind.php?q=1&board=Ticket&title=T189&title3=%C7%F3&dt=1",
                RegexPattern = @"<a href="http://t.zoukankan.com/aaa6818162-p-1943532.html"(bbscon.php.*)"">(.*)</a>",
                Encoding = Encoding.Default,
                Domain = "http://www.newsmth.net/"
            });

            sites.Add(new Site()
            {
                Name = "清华网",
                Url = "http://www.newsmth.net/bbsbfind.php?q=1&board=Ticket&title=K185&title3=%C7%F3&dt=1",
                RegexPattern = @"<a href="http://t.zoukankan.com/aaa6818162-p-1943532.html"(bbscon.php.*)"">(.*)</a>",
                Encoding = Encoding.Default,
                Domain = "http://www.newsmth.net/"
            });
            
            results = new HashSet<string>();

            isFirstRound = true;

            wc = new WebClient();
            wc.Encoding = sites[index].Encoding;

            wc.DownloadStringCompleted += new DownloadStringCompletedEventHandler(wc_DownloadStringCompleted);
            wc.DownloadStringAsync(new Uri(sites[index].Url));

            int order;         
            while (int.TryParse(Console.ReadLine(), out order))
            {
                OpenLink(results.ElementAt(order - 1));
                Console.ForegroundColor = ConsoleColor.Green;
            }
        }

        static void wc_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
        {
            int i = 0;
            
            MatchCollection mc = Regex.Matches(e.Result, sites[index].RegexPattern);
            foreach (Match m in mc)
            {
                if (m.Success)
                {
                    string result = sites[index].Domain + m.Groups[1].Value;
                    string content = m.Groups[2].Value;
                    if (!results.Contains(result))
                    {
                        bool isContainKey = true;
                        if (sites[index].Keys != null)
                        {
                            foreach (string key in sites[index].Keys)
                            {
                                if (!content.Contains(key))
                                {
                                    isContainKey = false;
                                    break;
                                }
                            }
                        }

                        if (!isContainKey)
                            continue;

                        results.Add(result);

                        Console.ForegroundColor = isFirstRound ? ConsoleColor.Gray : ConsoleColor.White;

                        Console.WriteLine("{0} <{1}>  {2}.  {3}", DateTime.Now.ToShortTimeString(), sites[index].Name, results.Count, m.Groups[2].Value);

                        if (!isFirstRound)
                        {
                            OpenLink(result);
                        }               
                    }
                }

                if (i++ > sites[index].Numbers - 2)
                    break;
            }

            Thread.Sleep(1000);

            index = index + 1;
            if (index == sites.Count)
            {
                index = 0;

                if (isFirstRound)
                    isFirstRound = false;
            }

            wc.Encoding = sites[index].Encoding;
            wc.DownloadStringAsync(new Uri(sites[index].Url));
        }

        static void OpenLink(string url)
        {
            Process.Start(url, "_blank");
        }
    }

    public class Site
    {
        //站点名称
        public string Name { get; set; }
        //站点的网址
        public string Url { get; set; }
        //正则表达式
        public string RegexPattern { get; set; }
        //编码
        public Encoding Encoding { get; set; }
        //网站名称
        public string Domain { get; set; }
        //包含关键字
        public string[] Keys { get; set; }
        //取前面多少条
        public int Numbers { get; set; }

        public Site()
        {
            this.Numbers = 3;
        }
    }
}

每年都用这个抢到票了，今天也不例外，分享给大家：

1. 里面的规则你可以自己添加，我已经写好了很多，你把网址里德车次改下就行了

2. 初始化会抓取最新的信息，但是不弹出网页，你可以在控制台输入id号，弹出对应id号的网址

3. 后面会自动循环捕获每个站点的新信息，并弹出网页

快就一个字，希望大家都能买到火车票，安心回家