C#获取外网IP、本机MAC地址及Ping的实现

原文 获取外网IP, C#获取本机的MAC地址，C#通过编程方式实现Ping

获取外网IP地址

思路是通过WebRequest连接一些网上提供IP查询服务的网站，下载到含有你的IP的网页，然后用正则表达式提取出IP来

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine(GetExportIP());  

        Console.ReadKey();
    }  

    public static string GetExportIP()
    {
        //获取外部IP
        string strUrl = "http://www.ip.cn/getip.php?action=getip&ip_url=&from=web";
        //string strUrl = "http://216.157.85.151/getip.php?action=getip&ip_url=&from=web";
        Uri uri = new Uri(strUrl);
        WebRequest webreq = WebRequest.Create(uri);
        Stream s = webreq.GetResponse().GetResponseStream();
        StreamReader sr = new StreamReader(s, Encoding.Default);
        string all = sr.ReadToEnd();
        all = Regex.Replace(all,@"(\d+)","000$1");
        all = Regex.Replace(all, @"0+(\d{3})", "$1");
        string reg = @"(\d{3}\.\d{3}\.\d{3}\.\d{3})";
        Regex regex = new Regex(reg);
        Match match = regex.Match(all);
        string ip = match.Groups[].Value;
        return Regex.Replace(ip,@"0*(\d+)","$1");
    }
}  

获取本机MAC

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Management;  

namespace _17获取MAC地址
{
    class Program
    {
        static void Main(string[] args)
        {
            ManagementObjectSearcher nisc = new ManagementObjectSearcher("select * from Win32_NetworkAdapterConfiguration");
            foreach (ManagementObject nic in nisc.Get())
            {
                if (Convert.ToBoolean(nic["ipEnabled"]) == true)
                {
                    Console.WriteLine("{0} - {1}", nic["ServiceName"], nic["MACAddress"]);
                }
            }  

            Console.ReadKey();
        }
    }
}  

Ping

废话少说，具体代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.NetworkInformation;  

namespace _20通过编程方式实现Ping
{
    class Program
    {
        static void Main(string[] args)
        {
            Ping ping = new Ping();
            PingOptions pingOpt = new PingOptions();
            pingOpt.DontFragment = true;//是否设置分段数据
            string myInfo = "Hello, world！";
            byte[] bufferInfo = Encoding.ASCII.GetBytes(myInfo);
            int timeOut = ;
            string ipTarget = "192.168.1.102";
            PingReply pingReply = ping.Send(ipTarget, timeOut, bufferInfo);
            if (pingReply.Status == IPStatus.Success)
            {
                Console.WriteLine("耗费时间 - {0}\n路由节点数 - {1}\n数据分段 - {2}\n缓冲区大小 - {3}", pingReply.RoundtripTime, //耗费时间
                                     pingReply.Options.Ttl, //路由节点数
                                     pingReply.Options.DontFragment ? "发生分段" : "没有发生分段",//数据分段
                                     pingReply.Buffer.Length//缓冲区大小
                                     );
            }
            else
            {
                Console.WriteLine("无法ping通");
            }  

            Console.ReadKey();
        }
    }
}  

C# 实现ping的功能