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UDPserver 控制台程序
static void Main(string[] args)
{
int recv;
byte[] data = new byte[1024];
//得到本机IP,设置TCP端口号
IPEndPoint ip = new IPEndPoint(IPAddress.Any, 8001);
Socket newsock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
//绑定网络地址
newsock.Bind(ip);
Console.WriteLine("This is a Server, host name is {0}", Dns.GetHostName());
//System.Diagnostics.Debug.WriteLine("This is a Server, host name is :" Dns.GetHostName());
//等待客户机连接
Console.WriteLine("Waiting for a client");
//得到客户机IP
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint Remote = (EndPoint)(sender);
recv = newsock.ReceiveFrom(data, ref Remote);
Console.WriteLine("Message received from {0}: ", Remote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
//客户机连接成功后,发送信息
string welcome = "hello client ! ";
//字符串与字节数组相互转换
data = Encoding.ASCII.GetBytes(welcome);
//发送信息
newsock.SendTo(data, data.Length, SocketFlags.None, Remote);
while (true)
{
data = new byte[1024];
//发送接收信息
recv = newsock.ReceiveFrom(data, ref Remote);
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
newsock.SendTo(data, recv, SocketFlags.None, Remote);
}
}