using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace PingDemo{    class Program    {        static void Main(string[] args)        {            Console.WriteLine("请输入IP:");            var ip = Console.ReadLine();            var resutl = Ping(ip);            Console.WriteLine(resutl);            Console.ReadLine();        }        /// <summary>          /// 是否能 Ping 通指定的主机          /// </summary>          /// <param name="ip">ip 地址或主机名或域名</param>          /// <returns>true 通，false 不通</returns>          static bool Ping(string ip)        {            try            {                System.Net.NetworkInformation.Ping p = new System.Net.NetworkInformation.Ping();                System.Net.NetworkInformation.PingOptions options = new System.Net.NetworkInformation.PingOptions();                options.DontFragment = true;                string data = http://www.mamicode.com/"Test Data!";                byte[] buffer = Encoding.ASCII.GetBytes(data);                int timeout = 5000; // Timeout 时间，单位：毫秒                  System.Net.NetworkInformation.PingReply reply = p.Send(ip, timeout, buffer, options);                if (reply == null || reply.Status == System.Net.NetworkInformation.IPStatus.Success)                    return true;                return false;            }            catch (System.Net.NetworkInformation.PingException e)            {                throw new Exception("找不到服务器");            }        }    }}