简单写了一篇读取12306的票价和余票，不过没有处理最终的字符串，本文重新处理一下，并且封装成类，希望能给大家带来帮助。

原文：，

至于为什么用应用程序而不用网页实现，因为我不是要做抢票，而是做一个抓取数据然后对本地进行分析处理的功能。

/// 
    /// 火车票票价类    /// 
    public class TrainTicketPriceModel    {        private string trainCode;        private string trainTeleCode;        private string fromStation;        private string arriveStation;        private string shangwuzuo;        private string tedengzuo;        private string yidengzuo;        private string erdengzuo;        //高级软卧        private string gaojiruanwoUp;        private string gaojiruanwoDown;        //软卧        private string ruanwoUp;        private string ruanwoDown;        //硬卧        private string yingwoUp;        private string yingwoMiddle;        private string yingwoDown;        private string ruanzuo;        private string yingzuo;        private string fromTime;        private string arriveTime;        private string throughTime;        private string startStation;        private string endStation;        private string level;        private string haveConditioner;        /// 
        /// 车次        /// 
        public string TrainCode        {            get { return trainCode; }            set            {                trainCode = value;            }        }        /// 
        /// 车次，电报码        /// 
        public string TrainTeleCode        {            get { return trainTeleCode; }            set            {                trainTeleCode = value;            }        }        /// 
        /// 出发站        /// 
        public string FromStation        {            get { return fromStation; }            set            {                fromStation = value;            }        }        /// 
        /// 到达站        /// 
        public string ArriveStation        {            get { return arriveStation; }            set            {                arriveStation = value;            }        }        /// 
        /// 商务座        /// 
        public string Shangwuzuo        {            get { return shangwuzuo; }            set            {                shangwuzuo = DoFormatPrice(value);            }        }        /// 
        /// 特等座        /// 
        public string Tedengzuo        {            get { return tedengzuo; }            set            {                tedengzuo = DoFormatPrice(value);            }        }        /// 
        /// 一等座        /// 
        public string Yidengzuo        {            get { return yidengzuo; }            set            {                yidengzuo = DoFormatPrice(value);            }        }        /// 
        /// 二等座        /// 
        public string Erdengzuo        {            get { return erdengzuo; }            set            {                erdengzuo = DoFormatPrice(value);            }        }        /// 
        /// 高级软卧        /// 
        public string GaojiruanwoUp        {            get { return gaojiruanwoUp; }            set            {                gaojiruanwoUp = DoFormatPrice(value);            }        }        public string GaojiruanwoDown        {            get { return gaojiruanwoDown; }            set            {                gaojiruanwoDown = DoFormatPrice(value);            }        }        /// 
        /// 软卧        /// 
        public string RuanwoUp        {            get { return ruanwoUp; }            set            {                ruanwoUp = DoFormatPrice(value);            }        }        public string RuanwoDown        {            get { return ruanwoDown; }            set            {                ruanwoDown = DoFormatPrice(value);            }        }        /// 
        /// 硬卧        /// 
        public string YingwoUp        {            get { return yingwoUp; }            set            {                yingwoUp = DoFormatPrice(value);            }        }        public string YingwoMiddle        {            get { return yingwoMiddle; }            set            {                yingwoMiddle = DoFormatPrice(value);            }        }        public string YingwoDown        {            get { return yingwoDown; }            set            {                yingwoDown = DoFormatPrice(value);            }        }        /// 
        /// 软座        /// 
        public string Ruanzuo        {            get { return ruanzuo; }            set            {                ruanzuo = DoFormatPrice(value);            }        }        /// 
        /// 硬座        /// 
        public string Yingzuo        {            get { return yingzuo; }            set            {                yingzuo = DoFormatPrice(value);            }        }        /// 
        /// 发时        /// 
        public string FromTime        {            get { return fromTime; }            set            {                fromTime = value;            }        }        /// 
        /// 到时        /// 
        public string ArriveTime        {            get { return arriveTime; }            set            {                arriveTime = value;            }        }        /// 
        /// 历时        /// 
        public string ThroughTime        {            get { return throughTime; }            set            {                throughTime = value;            }        }        /// 
        /// 始发站        /// 
        public string StartStation        {            get { return startStation; }            set            {                startStation = value;            }        }        /// 
        /// 终点站        /// 
        public string EndStation        {            get { return endStation; }            set            {                endStation = value;            }        }        /// 
        /// 等级        /// 
        public string Level        {            get { return level; }            set            {                level = value;            }        }        /// 
        /// 有无空调        /// 
        public string HaveConditioner        {            get { return haveConditioner; }            set            {                haveConditioner = value;            }        }        private string DoFormatPrice(string price)        {            if (string.IsNullOrEmpty(price))            {                return price;            }            if (!price.Contains("-"))            {                return price;            }            else            {                return @"----";            }        }    }

public class TrainTicketPriceQuery    {        private static string oldRandCodeImage = string.Empty;        private static string setCookie = string.Empty;        /// 
        /// 火车票票价信息字符串        /// 
        private static string DoQueryTrainTicketPriceInfo(DateTime fromDate, string startStation, string arriveStation, string randCode)        {            string result = string.Empty;            try            {                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(@"http://dynamic.12306.cn/TrainQuery/iframeTicketPriceByStation.jsp");                request.Accept = @"text/html, application/xhtml+xml, */*";                request.UserAgent = @"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)";                request.Referer = @"http://dynamic.12306.cn/TrainQuery/ticketPriceByStation.jsp";                request.ContentType = @"application/x-www-form-urlencoded";                request.Headers[HttpRequestHeader.Cookie] = setCookie;                request.Method = "POST";                byte[] buffer = new byte[0];                DoGetTrainTicketPriceRandCodeImage();                string parameter = @"condition=&queryMode=1&nmonth2={0}&nmonth2_new_value=true&nday2={1}&nday2_new_value=false&startStation_ticketPrice1={2}&startStation_ticketPrice1_new_value=false&arriveStation_ticketPrice1={3}&arriveStation_ticketPrice1_new_value=false&trainCode=&trainCode_new_value=true&rFlag=1&name_ckball=value_ckball&tFlagDC=DC&tFlagZ=Z&tFlagT=T&tFlagK=K&tFlagPK=PK&tFlagPKE=PKE&tFlagLK=LK&randCode={4}";                parameter = string.Format(parameter, fromDate.Month, fromDate.Day, startStation, arriveStation, randCode);                buffer = Encoding.UTF8.GetBytes(parameter);                request.ContentLength = buffer.Length;                using (Stream writer = request.GetRequestStream())                {                    writer.Write(buffer, 0, buffer.Length);                    writer.Flush();                }                using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())                {                    using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))                    {                        result = reader.ReadToEnd();                    }                }            }            catch { }            return result;        }        /// 
        /// 票价查询验证码        /// 
        /// 
            public static string DoGetTrainTicketPriceRandCodeImage()        {            string resultImage = string.Empty;            try            {                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(@"http://dynamic.12306.cn/TrainQuery/passCodeActi0n.do?rand=rrand");                request.Accept = @"image/png, image/svg+xml, image/*;q=0.8, */*;q=0.5";                request.UserAgent = @"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)";                request.Referer = @"http://dynamic.12306.cn/TrainQuery/ticketPriceByStation.jsp";                request.Method = "GET";                using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())                {                    setCookie = response.GetResponseHeader("Set-cookie");                    setCookie = Regex.Replace(setCookie, "path(?:[^,]+),?", "", RegexOptions.IgnoreCase);                    using (Stream reader = response.GetResponseStream())                    {                        string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, new Random().Next(10000, 99999) + @"queryTicketPrice.JPEG");                        using (FileStream file = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))                        {                            reader.CopyTo(file);                        }                        resultImage = path;                    }                }            }            catch { }            return resultImage;        }        /// 
        /// 读取票价信息        /// 
        ///         /// 
            public static ObservableCollection
    
      DoQueryTrainTicketPriceInfoCollects(DateTime fromDate, string startStation, string arriveStation, string randCode)        {            string priceContent = DoQueryTrainTicketPriceInfo(fromDate, startStation, arriveStation, randCode);            ObservableCollection
     
       priceCollects = new ObservableCollection
      
       ();            try            {                if (string.IsNullOrEmpty(priceContent))                {                    return priceCollects;                }                Regex regex = new Regex(@"parent.mygrid.addRow");                string[] arrows = regex.Split(priceContent);                for (int i = 0; i < arrows.Length; i++)                {                    if (i == 0)                    {                        continue;                    }                    string[] singlePrices = arrows[i].Split(',');                    TrainTicketPriceModel priceModel = new TrainTicketPriceModel();                    priceModel.TrainCode = singlePrices[2].Substring(0, singlePrices[2].IndexOf('^'));                    priceModel.TrainTeleCode = singlePrices[2].Substring(singlePrices[2].LastIndexOf('_') + 1);                    priceModel.FromStation = singlePrices[3].Substring(0, singlePrices[3].IndexOf('^'));                    priceModel.ArriveStation = singlePrices[4].Substring(0, singlePrices[4].IndexOf('^'));                    priceModel.Shangwuzuo = singlePrices[5];                    priceModel.Tedengzuo = singlePrices[6];                    priceModel.Yidengzuo = singlePrices[7];                    priceModel.Erdengzuo = singlePrices[8];                    string[] gaojiruanwo = singlePrices[9].Split('/');                    priceModel.GaojiruanwoUp = gaojiruanwo[0];                    priceModel.GaojiruanwoDown = gaojiruanwo.Length > 1 ? gaojiruanwo[1] : gaojiruanwo[0];                    string[] ruanwo = singlePrices[10].Split('/');                    priceModel.RuanwoUp = ruanwo[0];                    priceModel.RuanwoDown = ruanwo.Length > 1 ? ruanwo[1] : ruanwo[0];                    string[] yingwo = singlePrices[11].Split('/');                    priceModel.YingwoUp = yingwo[0];                    priceModel.YingwoMiddle = yingwo.Length > 2 ? yingwo[1] : yingwo[0];                    priceModel.YingwoDown = yingwo.Length > 2 ? yingwo[2] : yingwo[0];                    priceModel.Ruanzuo = singlePrices[12];                    priceModel.Yingzuo = singlePrices[13];                    priceModel.FromTime = singlePrices[14];                    priceModel.ArriveTime = singlePrices[15];                    priceModel.ThroughTime = singlePrices[16];                    priceModel.StartStation = singlePrices[17].Substring(0, singlePrices[17].IndexOf('^'));                    priceModel.EndStation = singlePrices[18].Substring(0, singlePrices[18].IndexOf('^'));                    priceModel.Level = singlePrices[19];                    priceModel.HaveConditioner = singlePrices[20].Substring(0, 1);                    priceCollects.Add(priceModel);                }            }            catch { }            return priceCollects;        }    }
      
     
    

/// 
    /// 火车票余票类    /// 
    public class TrainTicketLeftModel     {        private string trainCode;        private string fromStation;        private string arriveStation;        private string throughTime;        private string shangwuzuoQTY;        private string tedengzuoQTY;        private string yidengzuoQTY;        private string erdengzuoQTY;        private string gaojiruanwoQTY;        private string ruanwoQTY;        private string yingwoQTY;        private string ruanzuoQTY;        private string yingzuoQTY;        private string wuzuoQTY;        private string fromTime;        private string arriveTime;        /// 
        /// 车次        /// 
        public string TrainCode        {            get { return trainCode; }            set            {                trainCode = value;            }        }        /// 
        /// 出发站        /// 
        public string FromStation        {            get { return fromStation; }            set            {                fromStation = value;            }        }        /// 
        /// 到达站        /// 
        public string ArriveStation        {            get { return arriveStation; }            set            {                arriveStation = value;            }        }        /// 
        /// 商务座        /// 
        public string ShangwuzuoQTY        {            get { return shangwuzuoQTY; }            set            {                shangwuzuoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 特等座        /// 
        public string TedengzuoQTY        {            get { return tedengzuoQTY; }            set            {                tedengzuoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 一等座        /// 
        public string YidengzuoQTY        {            get { return yidengzuoQTY; }            set            {                yidengzuoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 二等座        /// 
        public string ErdengzuoQTY        {            get { return erdengzuoQTY; }            set            {                erdengzuoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 高级软卧        /// 
        public string GaojiruanwoQTY        {            get { return gaojiruanwoQTY; }            set            {                gaojiruanwoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 软卧        /// 
        public string RuanwoQTY        {            get { return ruanwoQTY; }            set            {                ruanwoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 硬卧        /// 
        public string YingwoQTY        {            get { return yingwoQTY; }            set            {                yingwoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 软座        /// 
        public string RuanzuoQTY        {            get { return ruanzuoQTY; }            set            {                ruanzuoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 硬座        /// 
        public string YingzuoQTY        {            get { return yingzuoQTY; }            set            {                yingzuoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 无座        /// 
        public string WuzuoQTY        {            get { return wuzuoQTY; }            set            {                wuzuoQTY = DoFormatLeftQTY(value);            }        }        /// 
        /// 发时        /// 
        public string FromTime        {            get { return fromTime; }            set            {                fromTime = value;            }        }        /// 
        /// 到时        /// 
        public string ArriveTime        {            get { return arriveTime; }            set            {                arriveTime = value;            }        }        /// 
        /// 历时        /// 
        public string ThroughTime        {            get { return throughTime; }            set            {                throughTime = value;            }        }        private string DoFormatLeftQTY(string qty)        {            if (string.IsNullOrEmpty(qty))            {                return "已售完";            }            try            {                if (!qty.Contains("-") && Convert.ToInt32(qty) > 0)                {                    return qty;                }            }            catch{ }            if (qty.Contains("无"))            {                return "无此席别";            }            return "已售完";        }    }

public class TrainTicketLeftQuery    {        /// 
        /// 余票返回字符串        /// 
        ///         ///         ///         ///         /// 
            private static string DoGetTrainTicketLeft(string fromTime, string fromStation, string arriveStation, string trainTeleCode)        {            string result = string.Empty;            try            {                //0-时间 1-出发站 2-达到 3-车次                string trainTicketLeftUrl =        @"http://dynamic.12306.cn/otsquery/query/queryRemanentTicketAction.do?method=queryLeftTicket&orderRequest.train_date={0}&orderRequest.from_station_telecode={1}&orderRequest.to_station_telecode={2}&orderRequest.train_no={3}&trainPassType=QB&trainClass=QB%23D%23Z%23T%23K%23QT%23&includeStudent=00&seatTypeAndNum=&orderRequest.start_time_str=00%3A00--24%3A00";                trainTicketLeftUrl = string.Format(trainTicketLeftUrl, fromTime, fromStation, arriveStation, trainTeleCode);                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(trainTicketLeftUrl);                request.Accept = @"application/json, text/javascript, */*";                request.UserAgent = @"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)";                request.Referer = @"http://dynamic.12306.cn/otsquery/query/queryRemanentTicketAction.do?method=init";                request.ContentType = @"application/x-www-form-urlencoded";                request.Method = "GET";                using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())                {                    using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))                    {                        result = reader.ReadToEnd();                    }                }            }            catch { }            return result;        }        /// 
        /// 读取余票        /// 
        ///         /// 
            public static ObservableCollection
    
      DoQueryTrainTicketLeftCollects(string fromTime, string fromStation, string arriveStation, string trainTeleCode)        {            string trainTicketLeftContent = DoGetTrainTicketLeft(fromTime, fromStation, arriveStation, trainTeleCode);            ObservableCollection
     
       trainTicketLeftCollecs = new ObservableCollection
      
       ();            try            {                var stations = JsonConvert.DeserializeObject
       
        (trainTicketLeftContent);                Regex regex = new Regex(@",");                string[] stationList = regex.Split(stations.datas);                bool firstitem = true;                for (int i = 0; i < stationList.Length; i++)                {                    if (i == 0)                    {                        continue;                    }                    string[] sigleStation = stationList[0].Split(',');                }                foreach (string item in stationList)                {                    if (firstitem)                    {                        firstitem = false;                        continue;//第一项不要                    }                    string[] sigleStation = item.Split(',');                    TrainTicketLeftModel leftModel = new TrainTicketLeftModel();                    string fstationContent = sigleStation[0].Replace(@" ", string.Empty);                    Regex fregex = new Regex(@"
        
");                    string[] fstation = fregex.Split(fstationContent);                    leftModel.FromStation = fstation[0].Substring(fstation[0].LastIndexOf('>') + 1);                    leftModel.FromTime = fstation[1];                    string astationContent = sigleStation[1].Replace(@" ", string.Empty);                    Regex aregex = new Regex(@"
        
");                    string[] astation = aregex.Split(astationContent);                    leftModel.ArriveStation = astation[0].Substring(astation[0].LastIndexOf('>') + 1);                    leftModel.ArriveTime = astation[1];                    leftModel.ThroughTime = sigleStation[2];                    leftModel.ShangwuzuoQTY = sigleStation[3];                    leftModel.TedengzuoQTY = sigleStation[4];                    leftModel.YidengzuoQTY = sigleStation[5];                    leftModel.ErdengzuoQTY = sigleStation[6];                    leftModel.GaojiruanwoQTY = sigleStation[7];                    leftModel.RuanwoQTY = sigleStation[8];                    leftModel.YingwoQTY = sigleStation[9];                    leftModel.RuanzuoQTY = sigleStation[10];                    leftModel.YingzuoQTY = sigleStation[11];                    leftModel.WuzuoQTY = sigleStation[12];                    trainTicketLeftCollecs.Add(leftModel);                }            }            catch { }            return trainTicketLeftCollecs;        }    }    [DataContract]    public class StationOfficialInfo    {        [DataMember]        public string datas        {            get;            set;        }        [DataMember]        public string time        {            get;            set;        }    }
       
      
     
    

/// 
    /// MainWindow.xaml 的交互逻辑    /// 
    public partial class MainWindow : Window    {        public MainWindow()        {            InitializeComponent();            this.Loaded += new RoutedEventHandler(MainWindow_Loaded);        }        void MainWindow_Loaded(object sender, RoutedEventArgs e)        {            string date = DateTime.Now.AddDays(3).ToString(@"yyyy-MM-dd");            this.txtDate.Text = date;            this.txtStartStation.Text = @"广州";            this.txtArriveStation.Text = @"西安";            InitialRandCode();        }        private void InitialRandCode()        {            //初始化验证码            string randCodeImageUrl = TrainTicketPriceQuery.DoGetTrainTicketPriceRandCodeImage();            if (!string.IsNullOrEmpty(randCodeImageUrl))            {                ImageSource src = (ImageSource)(new ImageSourceConverter().ConvertFromString(randCodeImageUrl));                this.imageRandCode.Source = src;            }        }        /// 
        /// 开始查询        /// 
        ///         ///         private void BtnQueryPrice_Click(object sender, RoutedEventArgs e)        {            string startStation = this.txtStartStation.Text.Trim();            string arriveStation = this.txtArriveStation.Text.Trim();            string randCode = this.txtRandCode.Text.Trim();            string startDate = this.txtDate.Text;            if (string.IsNullOrEmpty(startStation) || string.IsNullOrEmpty(arriveStation) || string.IsNullOrEmpty(randCode) || string.IsNullOrEmpty(startDate))            {                MessageBox.Show("参数不完整，请重新填写！");                return;            }            DateTime fromDate = DateTime.Parse(startDate);            var priceCollects= TrainTicketPriceQuery.DoQueryTrainTicketPriceInfoCollects(DateTime.Now.AddDays(4), startStation, arriveStation, randCode);            if (priceCollects == null || priceCollects.Count <= 0)            {                MessageBox.Show(@"读取车票价格失败！");            }            else            {                MessageBox.Show(@"读取车票价格成功！");            }        }        private void ButtonRandCode_Click(object sender, RoutedEventArgs e)        {            InitialRandCode();        }        private void BtnQueryLeft_Click(object sender, RoutedEventArgs e)        {            var leftCollects = TrainTicketLeftQuery.DoQueryTrainTicketLeftCollects(DateTime.Now.AddDays(3).ToString("yyyy-MM-dd"), "GZQ", "BJP", "");            if (leftCollects == null || leftCollects.Count <= 0)            {                MessageBox.Show(@"读取车票余票失败！");            }            else            {                MessageBox.Show(@"读取车票余票成功！");            }        }    }

界面

票价结果

余票结果：