C#使用ping命令的两个例子

方法一：调用cmd 的ping命令

 

private static string cmdping(string strip)
{

  process p = new process(); p.startinfo.filename = "cmd.exe";//设定程序名
  p.startinfo.useshellexecute = false; //关闭shell的使用
  p.startinfo.redirectstandardinput = true;//重定向标准输入
  p.startinfo.redirectstandardoutput = true;//重定向标准输出
  p.startinfo.redirectstandarderror = true;//重定向错误输出
  p.startinfo.createnowindow = true;//设置不显示窗口
  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 = "连接";
  }
  else if (strrst.indexof("destination host unreachable.") != -1)
  {
    pingrst = "无法到达目的主机";
  }
  else if (strrst.indexof("request timed out.") != -1)
  {
    pingrst = "超时";
  }
  else if (strrst.indexof("unknown host") != -1)
  {
    pingrst = "无法解析主机";
  }
  else
  {
    pingrst = strrst;
  }
  p.close();
  return pingrst;
}

方法二：使用c#中的ping 类

private void displayreply(pingreply reply) //显示结果
{

  ping p1 = new ping(); //只是演示，没有做错误处理
  
  pingreply reply = p1.send("填写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("超时");
  }else{
    response.write("失败");
  }