网络通信协议中的UDP通信是无连接通信，客户端在发送数据前无需与服务器端建立连接，即使服务器端不在线也可以发送，但是不能保证服务器端可以收到数据。本文实例即为基于C#实现的UDP通信。具体功能代码如下：

服务器端代码如下

static void Main(string[] args){UdpClient client = null;string receiveString = null;byte[] receiveData = 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);while (true){client = new UdpClient(11000);receiveData = client.Receive(ref remotePoint);//接收数据receiveString = Encoding.Default.GetString(receiveData);Console.WriteLine(receiveString);client.Close();//关闭连接}}客户端代码如下：static void Main(string[] args){string sendString = null;//要发送的字符串byte[] sendData = null;//要发送的字节数组UdpClient client = null;IPAddress remoteIP = IPAddress.Parse("127.0.0.1");int remotePort = 11000;IPEndPoint remotePoint = new IPEndPoint(remoteIP, remotePort);//实例化一个远程端点while (true){sendString = Console.ReadLine();sendData = Encoding.Default.GetBytes(sendString);client = new UdpClient();client.Send(sendData, sendData.Length, remotePoint);//将数据发送到远程端点client.Close();//关闭连接}

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