private static string CmdPing(string strIp)
{

  Process p = new Process(); p.StartInfo.FileName = "cmd.exe";//設(shè)定程序名
  p.StartInfo.UseShellExecute = false; //關(guān)閉Shell的使用
  p.StartInfo.RedirectStandardInput = true;//重定向標(biāo)準(zhǔn)輸入
  p.StartInfo.RedirectStandardOutput = true;//重定向標(biāo)準(zhǔn)輸出
  p.StartInfo.RedirectStandardError = true;//重定向錯誤輸出
  p.StartInfo.CreateNoWindow = true;//設(shè)置不顯示窗口
  string pingrst; p.Start(); p.StandardInput.WriteLine("ping " + strIp);
  p.StandardInput.WriteLine("exit");
  string strRst = p.StandardOutput.ReadToEnd();
  
  if (strRst.IndexOf("(0% loss)") != -1)
  {
    pingrst = "連接";
  }
  else if (strRst.IndexOf("Destination host unreachable.") != -1)
  {
    pingrst = "無法到達(dá)目的主機(jī)";
  }
  else if (strRst.IndexOf("Request timed out.") != -1)
  {
    pingrst = "超時";
  }
  else if (strRst.IndexOf("Unknown host") != -1)
  {
    pingrst = "無法解析主機(jī)";
  }
  else
  {
    pingrst = strRst;
  }
  p.Close();
  return pingrst;
}

private void displayReply(PingReply reply) //顯示結(jié)果
{

  Ping p1 = new Ping(); //只是演示，沒有做錯誤處理
  
  PingReply reply = p1.Send("填寫ip地址");
  
  StringBuilder sbuilder ;
  if (reply.Status == IPStatus.Success)
  {
    　　sbuilder = new StringBuilder();
    　　sbuilder.Append(string.Format("Address: {0} ", reply.Address.ToString ()));
    　　sbuilder.Append(string.Format("RoundTrip time: {0} ", reply.RoundtripTime));
    　　sbuilder.Append(string.Format("Time to live: {0} ", reply.Options.Ttl));
    　　sbuilder.Append(string.Format("Don't fragment: {0} ", reply.Options.DontFragment));
    　　sbuilder.Append(string.Format("Buffer size: {0} ", reply.Buffer.Length));
    　　response.write(sbuilder.ToString());
  }
  else if (reply.Status == IPStatus.TimeOut)　　
  {
    response.write("超時");
  }else{
    response.write("失敗");
  }