获取招聘网站职位，一个练习正则的小例子 - 黑马程序员技术交流社区

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Net;
using System.Text.RegularExpressions;
using System.IO;
namespace hm1
{
class Program
{
static void Main(string[] args)
{
// 抓取信息，生成以表格形式的的职位公司地址和日期的HTML页面
WebClient wb = new WebClient();
// 获取页面源码
string s = wb.DownloadString(@"http://search.51job.com/jobsearch/search_result.php?fromJs=1&jobarea=010000%2C00&funtype=0000&industrytype=00&keyword=net%E5%BC%80%E5%8F%91%E5%B7%A5%E7%A8%8B%E5%B8%88&keywordtype=2&lang=c&stype=1&postchannel=0000&fromType=23");
// 正则，获取招聘相关信息
Regex regall = new Regex(@"<td class=""td1""><a href="".+"" onclick=""zzSearch.acStatRecJob\( 1 \);"" class=""jobname"" target=""_blank"" >(?<zhiwei>.+)</a><img src="".+"" align=""absmiddle"" onclick=""zzSearch.switchListType\( this , '#[\w]{6}' \);""></td>\s+<td class=""td2""><a href="".+"" class=""coname"" target=""_blank"" >(?<gs>.+)</a></td>\s+<td class=""td3""><span id="".+"">(?<address>[\w\-]+)</span></td>\s+<td class=""td4""><span id="".+"">(?<datename>\d{4}\-\d{2}\-\d{2})</span></td>\s+<td class=""td5""> </td>");
List<zhaoping> ls = new List<zhaoping>();
MatchCollection m = regall.Matches(s);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < m.Count; i++)
{
zhaoping z = new zhaoping(); // 获取每一条招聘信息
z.zihwei = m[i].Groups["zhiwei"].Value.Replace(@"<font color=""#fe0201"">", "").Replace(@"</font>", "");
z.gongshi = m[i].Groups["gs"].Value;
z.dizhi = m[i].Groups["address"].Value;
z.riqi = m[i].Groups["datename"].Value;
ls.Add(z);
Console.WriteLine("职位：{0} 公司：{1} 地址：{2} 日期：{3}", z.zihwei, z.gongshi, z.dizhi, z.riqi);
}
// 生成HTML源码
sb.AppendLine("<html><head><title>招聘信息</title></head><body><table><tr align ='left' ><th>职位</th><th>公司</th><th>地址</th><th>日期</th></tr>");
foreach (var item in ls)
{
sb.AppendLine(item.getline());
}
sb.AppendLine("</table></body></html>");
// 输出文件
System.IO.File.WriteAllText("招聘.html", sb.ToString(), Encoding.UTF8);
Console.ReadKey();
}
}
class zhaoping
{
public string zihwei { get; set; } // 职位
public string gongshi { get; set; }// 公司
public string dizhi { get; set; }// 地址
public string riqi { get; set; }// 日期
public string getline()
{
return string.Format("<tr><td>{0}</td><td>{1}</td><td>{2}</td><td>{3}</td></tr>", zihwei, gongshi, dizhi, riqi);
}
}
}

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