不使用socket进行

unity下的

    private Thread connectThread;
    private UdpClient udpClient;
    
    public Queue LogQueue = new Queue();
    
    public static UDPManager Instance{get;private set;}

    private void Awake()
    {
        Instance = this;
    }

    private void Start()
    {
        udpClient = new UdpClient();
        udpClient.EnableBroadcast = true;
        
        connectThread = new Thread(new ThreadStart(SocketReceive));
        Thread.Sleep(1000);
        connectThread.Start();
    }


    private void Update()
    {
        SendMessanger();
    }

    void SocketReceive()
    {
        UdpClient udpClient = new UdpClient(6900);
        try
        {
            while (true)
            {
                IPEndPoint remoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
                while (true)
                {
                    byte[] recvData = udpClient.Receive(ref remoteIpEndPoint);
                    string recvStr = Encoding.UTF8.GetString(recvData);
                    LogQueue.Enqueue(recvStr);
                }
            }
           
        }
        catch (Exception)
        {
            throw;
        }
        finally
        {
            udpClient.Close();
        }

    }

    void SendMessanger()
    {
        if (LogQueue.Count <= 0) return;
        string strArray = LogQueue.Dequeue() as string;
        if (strArray!=null)
        {
            Debug.Log(strArray);
        }
    }

    public void SendAllStart(string content)
    {
        byte[] bytes = Encoding.UTF8.GetBytes(content);
        udpClient.Send(bytes, bytes.Length, new IPEndPoint(IPAddress.Loopback, 6910));
    }

c#其他下使用：

public partial class NetSever
{
    private static NetSever instance;

    public static NetSever Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new NetSever();
            }
            return instance;
        }
    }

   

    static UdpClient udpClient;
    static int connectPort;
    public static Queue LogQueue = new Queue();

   

    static IPAddress remoteIP = IPAddress.Parse("127.0.0.1");
    IPEndPoint remotePoint = new IPEndPoint(remoteIP, connectPort);//实例化一个远程端点

    //网络端口唤醒
    public void Init()
    {
       
        //初始化协议
        if (GetIP() == "")
        {
            Console.WriteLine ("当前IP地址不存在，或没有信号进行连接！");
            return;
        }
        udpClient = new UdpClient();
        udpClient.EnableBroadcast = true;
        connectPort = 6900;
        //添加事件订阅信息
        AddEventNeight();

        ////开启一个线程

        Task task = new Task(SocketReceive);
        task.Start();

       
        
    }


    private void AddEventNeight()
    {
       
    }

    string GetIP()
    {
        //本机名 
        string hostName = Dns.GetHostName();
        //会返回所有地址，包括IPv4和IPv6
        IPAddress[] addressList = Dns.GetHostAddresses(hostName);
        foreach (IPAddress ip in addressList)
        {
            if (ip.AddressFamily == AddressFamily.InterNetwork)
            {
                return ip.ToString();
            }
        }
        return "127.0.0.1";
    }


    static void SocketReceive()
    {

        UdpClient client = null;
        string receiveString = null;
       
        //实例化一个远程端点，IP和端口可以随意指定，等调用client.Receive(ref remotePoint)时会将该端点改成真正发送端端点
        IPEndPoint remotePoint = new IPEndPoint(IPAddress.Any, 0);

        //NetSever.Instance.SendAllStart("网络开启");

        UdpClient udpClient = new UdpClient(6910);
        try
        {
            while (true)
            {
                IPEndPoint remoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
                while (true)
                {
                    byte[] recvData = udpClient.Receive(ref remoteIpEndPoint);
                    receiveString = Encoding.UTF8.GetString(recvData);
                    string[] date = null;
                    if (receiveString.Contains("\r\n"))
                    {
                        receiveString = receiveString.TrimEnd((char[])"\r\n".ToCharArray());
                    }
                    if (receiveString.Contains("010"))
                    {
                        date = receiveString.Split('-');
                        receiveString = "010";
                    }
                    if (receiveString.Contains("openFile"))
                    {
                        date = receiveString.Split('-');
                        receiveString = "openFile";
                    }

                    switch (receiveString)
                    {
                        case "Text":
                            Console.WriteLine("网络端口测试！！！已收到信息");
                            NetSever.Instance.SendAllStart("网络已打开");
                            break;
     
                    }
                  
                }
            }
        }
        catch (Exception)
        {
            //NetSever.Instance.SendAllStart("网络已打开");
            throw;
        }
        finally
        {
            udpClient.Close();
        }

    }
   

    //发送端口
    public void SendAllStart(string content)
    {
        byte[] bytes = Encoding.UTF8.GetBytes(content);

        UdpClient udpClient = new UdpClient();
        try
        {
            udpClient.Connect("127.0.0.1", 6900);
           
            udpClient.Send(bytes, bytes.Length);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.ToString());
        }
        fanily
       {
         udpClient.Close();//这里要记得关闭
        }
}


        
    }

至于为啥这么写，只能说经验之谈