C#实现读取IPv6 UDP Socket数据，再发送出去

C#实现读取IPv6 UDP Socket数据，再发送出去。

不知为何，黑框点一下就停止刷新了，再点一下，就继续刷新了。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static Socket s1, s2, s3;
        static int s1_rxcnt = ;
        static int s2_txcnt = ;
        static int s3_txcnt = ;
        static void Main(string[] args)
        {
            s1 = new Socket(AddressFamily.InterNetworkV6, SocketType.Dgram, ProtocolType.Udp);
            s1.Bind(new IPEndPoint(IPAddress.IPv6Any, ));

            s2 = new Socket(AddressFamily.InterNetworkV6, SocketType.Dgram, ProtocolType.Udp);
            s2.Bind(new IPEndPoint(IPAddress.IPv6Loopback, ));

            s3 = new Socket(AddressFamily.InterNetworkV6, SocketType.Dgram, ProtocolType.Udp);
            s3.Bind(new IPEndPoint(IPAddress.IPv6Loopback, ));

            Thread t = new Thread(ReciveMsg);//开启接收消息线程
            t.Start();
        }

        static void ReciveMsg()
        {
            byte[] buffer = new byte[];
            int length;
            while (true)
            {
                length = s1.Receive(buffer);
                s1_rxcnt++;

                s2.SendTo(buffer, new IPEndPoint(IPAddress.IPv6Loopback, ));
                s2_txcnt++;

                s3.SendTo(buffer, new IPEndPoint(IPAddress.IPv6Loopback, ));
                s3_txcnt++;

                Console.WriteLine("s1_rxcnt: " + s1_rxcnt.ToString("D8") +
                                    ", s2_txcnt: " + s2_txcnt.ToString("D8") +
                                        ", s3_txcnt: " + s3_txcnt.ToString("D8"));
            }
        }
    }
}

输出样式：

s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt:
s1_rxcnt: , s2_txcnt: , s3_txcnt: 

Visual C#官方例子教程

https://docs.microsoft.com/zh-cn/visualstudio/ide/tutorial-3-create-a-matching-game?view=vs-2015