编辑“︁C Sharp UDP 编程”︁（章节）

== 代码实现 ==
=== 发送数据 ===
<syntaxhighlight lang="csharp">
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

class UDPSender 
{
    static void Main()
    {
        // 创建UdpClient（自动分配本地端口）
        using UdpClient sender = new UdpClient();
        
        // 目标地址和端口
        IPEndPoint remoteEP = new IPEndPoint(IPAddress.Parse("192.168.1.100"), 11000);
        
        // 发送数据
        string message = "Hello UDP!";
        byte[] data = Encoding.ASCII.GetBytes(message);
        sender.Send(data, data.Length, remoteEP);
        
        Console.WriteLine($"Sent: {message}");
    }
}
</syntaxhighlight>

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

class UDPReceiver 
{
    static void Main()
    {
        // 绑定到本地端口
        using UdpClient receiver = new UdpClient(11000);
        
        // 接收来自任意发送方的数据
        IPEndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);
        byte[] data = receiver.Receive(ref remoteEP);
        
        string message = Encoding.ASCII.GetString(data);
        Console.WriteLine($"Received {data.Length} bytes from {remoteEP}: {message}");
    }
}
</syntaxhighlight>