C# 更改本机dns

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;
namespace Ex14_07
{
    public partial class Form1 : Form
    {
        static string strnew = null;
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void Form1_Load（object sender EventArgs e）
        {
            try
            {
                RegistryKey reg = Registry.LocalMachine.OpenSubKey（@“System\CurrentControlSet\Services\Tcpip\linkage“）;
                string[] str = （String[]）reg.GetValue（“Route“）;
                strnew = str[0].Substring（1 str[0].Length - 2）;
                string path = @“System\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\“ + strnew;
                RegistryKey regIp = Registry.LocalMachine.OpenSubKey（path）;
                string strDNS = regIp.GetValue（“NameServer“ “Null“ Regis

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2010-04-06 13:10  Ex14_07\
     文件         910  2007-07-11 11:34  Ex14_07.sln
     文件       13312  2007-07-11 11:34  Ex14_07.suo
     目录           0  2010-04-06 13:10  Ex14_07\bin\
     目录           0  2010-04-06 13:10  Ex14_07\bin\Debug\
     文件       20480  2007-07-11 11:34  Ex14_07\bin\Debug\Ex14_07.exe
     文件       22016  2007-07-11 11:34  Ex14_07\bin\Debug\Ex14_07.pdb
     文件        5632  2007-07-11 11:34  Ex14_07\bin\Debug\Ex14_07.vshost.exe
     文件        3221  2007-07-11 11:34  Ex14_07\Ex14_07.csproj
     文件        2042  2007-07-11 11:34  Ex14_07\Form1.cs
     文件        3157  2007-07-11 11:34  Ex14_07\Form1.Designer.cs
     文件        5814  2007-07-11 11:34  Ex14_07\Form1.resx
     目录           0  2010-04-06 13:10  Ex14_07\obj\
     目录           0  2010-04-06 13:10  Ex14_07\obj\Debug\
     文件         842  2007-07-11 11:34  Ex14_07\obj\Debug\Ex14_07.csproj.GenerateResource.Cache
     文件       20480  2007-07-11 11:34  Ex14_07\obj\Debug\Ex14_07.exe
     文件         180  2007-07-11 11:34  Ex14_07\obj\Debug\Ex14_07.Form1.resources
     文件       22016  2007-07-11 11:34  Ex14_07\obj\Debug\Ex14_07.pdb
     文件         180  2007-07-11 11:34  Ex14_07\obj\Debug\Ex14_07.Properties.Resources.resources
     目录           0  2010-04-06 13:10  Ex14_07\obj\Debug\TempPE\
     文件         268  2007-07-11 11:34  Ex14_07\obj\Ex14_07.csproj.FileList.txt
     文件         466  2007-07-11 11:34  Ex14_07\Program.cs
     目录           0  2010-04-06 13:10  Ex14_07\Properties\
     文件        1162  2007-07-11 11:34  Ex14_07\Properties\AssemblyInfo.cs
     文件        2868  2007-07-11 11:34  Ex14_07\Properties\Resources.Designer.cs
     文件        5612  2007-07-11 11:34  Ex14_07\Properties\Resources.resx
     文件        1090  2007-07-11 11:34  Ex14_07\Properties\Settings.Designer.cs
     文件         249  2007-07-11 11:34  Ex14_07\Properties\Settings.settings
     目录           0  2010-04-06 13:10  Ex14_08\
     目录           0  2010-04-06 13:10  Ex14_08\Ex14_08\
     文件         910  2007-07-11 11:34  Ex14_08\Ex14_08.sln
............此处省略26个文件信息