C#中 用socket实现多个个客户端的相互聊天功能

实现多个客户端的相互聊天功能，可以采用C#中的Socket编程来实现，以下是一个简单的示例代码：

服务端代码：

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

namespace Server
{
    class Program
    {
        private static Socket serverSocket;
        private static byte[] buffer = new byte[1024];
        private static List<Socket> clientSockets = new List<Socket>();

        static void Main(string[] args)
        {
            Console.WriteLine("Starting server...");
            serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            serverSocket.Bind(new IPEndPoint(IPAddress.Any, 8080));
            serverSocket.Listen(5);
            Console.WriteLine("Server started on port 8080");
            while (true)
            {
                Socket clientSocket = serverSocket.Accept();
                clientSockets.Add(clientSocket);
                Console.WriteLine($"Client connected: {clientSocket.RemoteEndPoint}");
                Thread thread = new Thread(() => ListenClient(clientSocket));
                thread.Start();
            }
        }

        private static void ListenClient(Socket clientSocket)
        {
            while (true)
            {
                int bytesReceived = clientSocket.Receive(buffer);
                if (bytesReceived == 0)
                {
                    clientSockets.Remove(clientSocket);
                    Console.WriteLine($"Client disconnected: {clientSocket.RemoteEndPoint}");
                    break;
                }
                string message = Encoding.ASCII.GetString(buffer, 0, bytesReceived);
                Console.WriteLine($"Received message '{message}' from client {clientSocket.RemoteEndPoint}");
                foreach (Socket socket in clientSockets)
                {
                    if (socket != clientSocket)
                    {
                        socket.Send(Encoding.ASCII.GetBytes(message));
                    }
                }
            }
        }
    }
}

客户端代码：

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

namespace Client
{
    class Program
    {
        private static Socket clientSocket;
        private static byte[] buffer = new byte[1024];

        static void Main(string[] args)
        {
            Console.WriteLine("Connecting to server...");
            clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            clientSocket.Connect(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8080));
            Console.WriteLine("Connected to server");
            while (true)
            {
                Console.Write("Enter message: ");
                string message = Console.ReadLine();
                clientSocket.Send(Encoding.ASCII.GetBytes(message));
                int bytesReceived = clientSocket.Receive(buffer);
                string receivedMessage = Encoding.ASCII.GetString(buffer, 0, bytesReceived);
                Console.WriteLine($"Received message from server: {receivedMessage}");
            }
        }
    }
}

这里是一个简单的示例，客户端和服务端都是单线程运行的，无法处理并发连接，需要根据实际需求进行改进。