网页抠图（正则表达式）

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.IO;
namespace 网页抠图
{
    class Program
    {
        static void Main(string[] args)
        {
            WebClient wc = new WebClient();
            for (int i = 0; i < 9; i++)
            {
                string page = "";
                if (i > 0)
                {
                    page = "_" + i;
                }
                string html = wc.DownloadString("http://gb.cri.cn/42071/2015/03/25/7211s4912740" + page + ".htm");
                MatchCollection Matchs = Regex.Matches(html, "<IMG\\ssrc=\"(/mmsource/images/2015/03/25/[0-9]{2}/(\\w+.jpg))\">");
                string url = "http://gb.cri.cn";
                foreach (Match item in Matchs)
                {
                    if (item.Success)
                    {
                        //Console.WriteLine(item);
                        //Console.WriteLine(url+item.Groups[1].Value);
                        //Console.WriteLine(Path.Combine(@"E:\img",item.Groups[2].Value));
                        wc.DownloadFile(url + item.Groups[1].Value, Path.Combine(@"E:\img", item.Groups[2].Value));
                        Console.Write("*");
                    }
                }
            }
            Console.WriteLine("下载完成");
            Console.ReadKey();
        }
    }
}