编辑“︁C Sharp TCP 编程”︁（章节）

== 基础TCP服务器实现 ==
以下是简单TCP服务器示例：

<syntaxhighlight lang="csharp">
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

class TcpServer
{
    static void Main()
    {
        // 1. 创建监听器
        TcpListener server = new TcpListener(IPAddress.Any, 8888);
        server.Start();
        Console.WriteLine("服务器已启动，等待连接...");

        // 2. 接受客户端连接
        TcpClient client = server.AcceptTcpClient();
        Console.WriteLine($"客户端已连接: {client.Client.RemoteEndPoint}");

        // 3. 获取网络流
        NetworkStream stream = client.GetStream();

        // 4. 读取客户端数据
        byte[] buffer = new byte[1024];
        int bytesRead = stream.Read(buffer, 0, buffer.Length);
        string data = Encoding.UTF8.GetString(buffer, 0, bytesRead);
        Console.WriteLine($"收到数据: {data}");

        // 5. 发送响应
        string response = "消息已接收";
        byte[] responseData = Encoding.UTF8.GetBytes(response);
        stream.Write(responseData, 0, responseData.Length);

        // 6. 关闭连接
        client.Close();
        server.Stop();
    }
}
</syntaxhighlight>