检查网络是否ping通

using System;
using System.Collections.Generic;
using System.Linq;

using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.NetworkInformation;
namespace FQ.Core
{
    public class NetStatusCheck
    {
        public static string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; // 要发送的数据
        public static async Task<PingReply> CheckAsync(string ip)
        {
            Ping pingSender = new Ping();
            PingOptions options = new PingOptions();

            // Use the default Ttl value which is 128,
            // but change the fragmentation behavior.
            options.DontFragment = true;

            // Create a buffer of 32 bytes of data to be transmitted.
            //string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
            byte[] buffer = Encoding.ASCII.GetBytes(data);
            int timeout = 120;

            Task<PingReply> tPing = Task.Run<PingReply>(() => pingSender.Send(ip, timeout, buffer, options));
            PingReply reply = await tPing;
            return reply;
            //PingReply reply =  pingSender.Send(ip, timeout, buffer, options);
            //if (reply.Status == IPStatus.Success)
            //{
            //    Console.WriteLine("Address: {0}", reply.Address.ToString());
            //    Console.WriteLine("RoundTrip time: {0}", reply.RoundtripTime);
            //    Console.WriteLine("Time to live: {0}", reply.Options.Ttl);
            //    Console.WriteLine("Don't fragment: {0}", reply.Options.DontFragment);
            //    Console.WriteLine("Buffer size: {0}", reply.Buffer.Length);
            //}
        }

        public static async Task<bool> CheckAsync2(string ip)
        {
            Ping pingSender = new Ping();
            PingOptions options = new PingOptions();

            // Use the default Ttl value which is 128,
            // but change the fragmentation behavior.
            options.DontFragment = true;

            // Create a buffer of 32 bytes of data to be transmitted.
            //string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
            byte[] buffer = Encoding.ASCII.GetBytes(data);
            int timeout = 120;

            Task<PingReply> tPing = Task.Run<PingReply>(() => pingSender.Send(ip, timeout, buffer, options));
            PingReply reply = await tPing;// tPing.GetAwaiter().GetResult();
            return reply.Status == IPStatus.Success;
        }

        public static bool Check(string ip)
        {
            Ping pingSender = new Ping();
            PingOptions options = new PingOptions();

            // Use the default Ttl value which is 128,
            // but change the fragmentation behavior.
            options.DontFragment = true;

            // Create a buffer of 32 bytes of data to be transmitted.
            //string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
            byte[] buffer = Encoding.ASCII.GetBytes(data);
            int timeout = 120;

            PingReply reply =  pingSender.Send(ip, timeout, buffer, options);
            return reply.Status == IPStatus.Success;
        }
    }
}