1:  System.Net.NetworkInformation.Ping p = new System.Net.NetworkInformation.Ping();

   2:  System.Net.NetworkInformation.PingReply pr =

   3:  p.Send(new System.Net.IPAddress(new byte[] { 192, 168, 123, 225 }), 1000);

   4:  Console.WriteLine(pr.Status);

   1:  using System;

   2:  using System.Diagnostics;

   3:  namespace ZZ

   4:  {

   5:       class ZZConsole

   6:       {

   7:           [STAThread]

   8:           static void Main(string[] args)

   9:           { 

  10:   

  11:                string ip = "192.192.132.229";

  12:                string strRst = CmdPing(ip);

  13:                Console.WriteLine(strRst);

  14:                Console.ReadLine();

  15:           }

  16:   

  17:           private static string CmdPing(string strIp)

  18:           {

  19:                Process p = new Process();

  20:                p.StartInfo.FileName = "cmd.exe";

  21:                p.StartInfo.UseShellExecute = false;

  22:                p.StartInfo.RedirectStandardInput = true;

  23:                p.StartInfo.RedirectStandardOutput = true;

  24:                p.StartInfo.RedirectStandardError = true;

  25:                p.StartInfo.CreateNoWindow = true;

  26:                string pingrst;

  27:                p.Start();

  28:                p.StandardInput.WriteLine("ping -n 1 "+strIp);

  29:                p.StandardInput.WriteLine("exit");

  30:                string strRst = p.StandardOutput.ReadToEnd();

  31:                if(strRst.IndexOf("(0% loss)")!=-1)

  32:                     pingrst = "连接";

  33:                else if( strRst.IndexOf("Destination host unreachable.")!=-1)

  34:                     pingrst = "无法到达目的主机";

  35:                else if(strRst.IndexOf("Request timed out.")!=-1)

  36:                     pingrst = "超时";

  37:                else if(strRst.IndexOf("Unknown host")!=-1)

  38:                     pingrst = "无法解析主机";

  39:                else

  40:                     pingrst = strRst;

  41:                p.Close();

  42:                return pingrst;

  43:           }

  44:       }

  45:  }