C# 提取网页中的 所有邮箱地址

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Text;
using System.Windows.Forms;

namespace FindEmail
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void button1_Click（object sender EventArgs e）
        {
            string url = “http://www.google.de/search?q=usb+flash+drive“;
            url = this.textBox1.Text;
            //url = “http://search.yahoo.com/search?p=usb+flash+drive&fr=sfp&fr2=&iscqry=“;
            Searcher searcher = new Searcher（）;
            var list=searcher.DoSearch（url）;
            File.WriteAllLines（“./txt.log“list.ToArray（））;
            Mess

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-08-10 15:56  FindEmail\
     文件         869  2014-04-03 00:21  FindEmail.sln
     文件       17408  2014-04-03 00:21  FindEmail.suo
     文件         117  2014-04-03 00:21  FindEmail\app.config
     目录           0  2015-08-10 14:40  FindEmail\bin\
     目录           0  2015-08-10 15:00  FindEmail\bin\Debug\
     文件       11264  2015-08-10 15:56  FindEmail\bin\Debug\FindEmail.exe
     文件         117  2014-04-03 00:21  FindEmail\bin\Debug\FindEmail.exe.config
     文件       30208  2015-08-10 15:56  FindEmail\bin\Debug\FindEmail.pdb
     文件       21656  2015-08-10 15:43  FindEmail\bin\Debug\FindEmail.vshost.exe
     文件         117  2014-04-03 00:21  FindEmail\bin\Debug\FindEmail.vshost.exe.config
     文件         490  2012-06-02 22:34  FindEmail\bin\Debug\FindEmail.vshost.exe.manifest
     文件      135168  2014-04-03 00:21  FindEmail\bin\Debug\HtmlAgilityPack.dll
     文件         400  2015-08-10 16:04  FindEmail\bin\Debug\txt.log
     文件        3863  2014-04-03 00:21  FindEmail\FindEmail.csproj
     文件         875  2015-08-10 15:04  FindEmail\Form1.cs
     文件        3119  2015-08-10 15:04  FindEmail\Form1.Designer.cs
     文件        5817  2015-08-10 15:04  FindEmail\Form1.resx
     文件        1026  2014-04-03 00:21  FindEmail\HtmlUtils.cs
     目录           0  2015-08-10 14:40  FindEmail\obj\
     目录           0  2015-08-10 14:40  FindEmail\obj\x86\
     目录           0  2015-08-10 15:56  FindEmail\obj\x86\Debug\
     文件         791  2015-08-10 14:47  FindEmail\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        6188  2015-08-10 14:40  FindEmail\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件         865  2015-08-10 15:43  FindEmail\obj\x86\Debug\FindEmail.csproj.FileListAbsolute.txt
     文件         847  2015-08-10 15:04  FindEmail\obj\x86\Debug\FindEmail.csproj.GenerateResource.Cache
     文件        5775  2015-08-10 14:41  FindEmail\obj\x86\Debug\FindEmail.csprojResolveAssemblyReference.cache
     文件       11264  2015-08-10 15:56  FindEmail\obj\x86\Debug\FindEmail.exe
     文件         180  2015-08-10 15:04  FindEmail\obj\x86\Debug\FindEmail.Form1.resources
     文件       30208  2015-08-10 15:56  FindEmail\obj\x86\Debug\FindEmail.pdb
     文件         180  2015-08-10 14:41  FindEmail\obj\x86\Debug\FindEmail.Properties.Resources.resources
............此处省略11个文件信息