socket network programming (server, client)

Server

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

namespace SeverTest
{
    class Program
    {
        static void Main(string[] args)
        {
            SeverControl sever = new SeverControl();
            sever.Start();
            Console.ReadLine();
        }
    }
}

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 SeverTest
{
    class SeverControl
    {
        private Socket severSocket;
        private List<Socket> clients;
        public SeverControl()
        {
            severSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            clients = new List<Socket>();
        }
        public void Start()
        {
            severSocket.Bind(new IPEndPoint(IPAddress.Any, 23432));
            severSocket.Listen(10);
            Console.WriteLine("服务器启动成功");

            Thread acceptThread = new Thread(Accept);
            acceptThread.IsBackground = true;
            acceptThread.Start();

        }
        private void Accept()
        {
            Socket clientSocket = severSocket.Accept();
            IPEndPoint iPEndPoint = clientSocket.RemoteEndPoint as IPEndPoint;
            Console.WriteLine(iPEndPoint.Address + "(" + iPEndPoint.Port + ")" + "连接成功");
            clients.Add(clientSocket);
            Thread receiveThread = new Thread(Receive);
            receiveThread.IsBackground = true;
            receiveThread.Start(clientSocket);

            Accept();
        }
        private void Receive(object obj)
        {
            Socket clientSocket = obj as Socket;
            IPEndPoint endPoint = clientSocket.RemoteEndPoint as IPEndPoint;
            try
            {
                byte[] buffer = new byte[1024];
                int length = clientSocket.Receive(buffer);
                string mag = endPoint.Address + "[" + endPoint.Port + "]" + Encoding.UTF8.GetString(buffer, 0, length);
                Console.WriteLine(mag);
                Broadcast(clientSocket, mag);
                //clientSocket.Send(Encoding.UTF8.GetBytes("服务器收到"));
                Receive(clientSocket);
            }
            catch
            {
                Console.WriteLine(endPoint.Address + "[" + endPoint.Port + "]" + "断开连接");
                clients.Remove(clientSocket);
            }
        }
        private void Broadcast(Socket otherclient, string mag)
        {
            foreach (var client in clients)
            {
                if (client == otherclient)
                {
                }
                else
                {
                    client.Send(Encoding.UTF8.GetBytes(mag));
                }
            }
        }

    }
}

Client

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

namespace ClientTest
{
    class Program
    {
        static void Main(string[] args)
        {
            ClientControl client = new ClientControl();
            client.Connect();
            client.Send();
            Console.ReadLine();
        }
    }
}

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

namespace ClientTest
{
    class ClientControl
    {
        Socket clientSocket;
        public ClientControl()
        {
            clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        }
        public void Connect()
        {
            clientSocket.Connect("192.168.28.15", 23432);
            Console.WriteLine("连接服务器成功");
            Thread receiveThread = new Thread(Receive);
            receiveThread.IsBackground = true;
            receiveThread.Start();
        }
        public void Send()
        {
            Console.WriteLine("请输入发送信息，输入quit结束");
            string mag = Console.ReadLine();
            while (mag != "quit")
            {
                clientSocket.Send(Encoding.UTF8.GetBytes(mag));
                mag = Console.ReadLine();
            }
        }
        private void Receive()
        {
            try
            {
                byte[] buffer = new byte[1024];
                int length = clientSocket.Receive(buffer);
                Console.WriteLine(Encoding.UTF8.GetString(buffer, 0, length));
                Receive();
            }
            catch
            {
                Console.WriteLine("服务器拒绝访问");
            }
        }

    }
}

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Reproduced in: https: //www.jianshu.com/p/609ca5e933c0