C# 使用ping命令

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方法一:調用cmd 的ping命令

private static string CmdPing(string strIp)

{

 Process p = new Process(); p.StartInfo.FileName = "cmd.exe";//設定程式名

p.StartInfo.UseShellExecute = false; //關閉Shell的使用

p.StartInfo.RedirectStandardInput = true;//重新導向標準輸入

p.StartInfo.RedirectStandardOutput = true;//重新導向標準輸出

p.StartInfo.RedirectStandardError = true;//重新導向錯誤輸出

p.StartInfo.CreateNoWindow = true;//設定不顯示視窗

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 = "串連";

}

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

{

pingrst = "無法到達目的主機";

}

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

{

pingrst = "逾時";

}

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

{

pingrst = "無法解析主機";

}

else

{

pingrst = strRst;

}

p.Close();

return pingrst;

}

 

方法二:使用C#中的ping 類

private void displayReply(PingReply reply) //顯示結果

  {

Ping p1 = new Ping(); //只是示範,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("逾時");

}else{

response.write("失敗");

}

 

}

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