面向对象（二十五）-Socket, UDP客户端，服务器端

1.服务端代码

static void Main(string[] args)
{
Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

server.Bind(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8090));

EndPoint clientPoint= new IPEndPoint(IPAddress.Any, 0); // 声明一个空的端口对象，当接受到数据的时候，会将数据发送方的地址赋值到该对象中
byte[] reciveData = new byte[1024];

int dataLength = server.ReceiveFrom(reciveData, ref clientPoint); //接收到连接，会将连接方的地址写入clientPoint
string reciveMessage = Encoding.UTF8.GetString(reciveData, 0, dataLength);

Console.WriteLine(reciveMessage);

server.Close();

Console.ReadKey();
}

2.客户端代码

static void Main(string[] args)
{

Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

string userMessage = Console.ReadLine();
byte[] data = Encoding.UTF8.GetBytes(userMessage);
EndPoint serverPoint = new IPEndPoint(IPAddress.Parse("192.168.1.255"), 8090);

clientSocket.SendTo(data, serverPoint);

Console.ReadKey();
}