using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Net;using System.Text;using System.Text.RegularExpressions;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Xml;namespace WebApplication19{    public enum SearchRange    {        th=0,        td=1    }    public partial class WebForm1 : System.Web.UI.Page    {        public string MKT;        private string getHtml()        {            List
     
       trList = new List
      
       ();            try            {                WebClient wc = new WebClient();                using (Stream stream = wc.OpenRead("http://srh.bankofchina.com/search/whpj/search.jsp?erectDate=2001-11-01&nothing=2016-11-04&pjname=1316&page=4"))                {                    using (StreamReader sr = new StreamReader(stream, Encoding.UTF8))                    {                        string content = sr.ReadToEnd();                        //提取div内容开始                        string divPatern = @"(?<=
       
        ]*?>)([\s\S]*?)(?=
       
)";                        MatchCollection divMatches = Regex.Matches(content, divPatern);                        string divContent = string.Empty;                        foreach (Match match in divMatches)                        {                            divContent = match.Groups[0].Value;                            break;                        }                        //提取div内容结束                        //提取表格内容开始                        string tablePatern = @"(?<=
       
        ]*?>)([\s\S]*?)(?=
)";                        MatchCollection tableMatches = Regex.Matches(divContent, tablePatern);                        string tableContent = string.Empty;                        foreach (Match match in tableMatches)                        {                            tableContent = match.Groups[0].Value;                            break;                        }                        //提取表格内容结束                        //提取行开始                        string trPatern = @"(?<=
       
        ]*?>)([\s\S]*?)(?=)";                        MatchCollection trMatchCollection = Regex.Matches(tableContent, trPatern);                        for (int j = 0; j < trMatchCollection.Count; j++)                        {                            Match match = trMatchCollection[j];                            string tr = string.Empty;                            tr = match.Groups[0].Value;                            trList.Add(tr);                        }                        //提取行结束                    }                    //获取表头列元素，或者内容行的单元格元素 trlist[0]是表头 SearchR,ange告诉程序要查表头 还是 内容行                    List
        
          thList = GET_TH_OR_TD_LIST(SearchRange.th, trList[0]);                    System.Collections.ArrayList tdsList = new System.Collections.ArrayList();                    for (int i = 1; i < trList.Count; i++)                    {                        tdsList.Add(GET_TH_OR_TD_LIST(SearchRange.td, trList[i]));                    }                                  }            }            catch (Exception ex)            {                           }            return MKT;        }        private List
         
           GET_TH_OR_TD_LIST(SearchRange range,string row)        {            string tmp = "";            tmp = range.ToString();            string tdPatern = $@"(?<=(<{tmp}[^>]*?>))(?
          
           [\s\S]*?)(?=
           )"; MatchCollection CurrenttdMatchCollection = Regex.Matches(row, tdPatern); string td = string.Empty; List
           
             tdlList = new List
            
             (); List
             
               contentList = new List
              
               (); foreach (Match match in CurrenttdMatchCollection) { td = match.Groups["tdCell"].Value; contentList.Add(td); } return contentList; } protected void Page_Load(object sender, EventArgs e) { getHtml(); } }}