int recv;//用于表示客户端发送的信息长度
byte[] data = new byte[1024];//用于缓存客户端所发送的信息,通过socket传递的信息必须为字节数组
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, port);//本机预使用的IP和端口
Socket newsock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
newsock.Bind(ipep);//绑定
newsock.Listen(10);//监听
Console.WriteLine("waiting for a client");
Socket client = newsock.Accept();//当有可用的客户端连接尝试时执行，并返回一个新的socket,用于与客户端之间的通信
IPEndPoint clientip = (IPEndPoint)client.RemoteEndPoint;
Console.WriteLine("connect with client:" + clientip.Address + " at port:" + clientip.Port);
string welcome = "welcome here!";
data = Encoding.ASCII.GetBytes(welcome);
client.Send(data, data.Length, SocketFlags.None);//发送信息
while (true)
{//用死循环来不断的从客户端获取信息
data = new byte[1024];
recv = client.Receive(data);
Console.WriteLine("recv=" + recv);
if (recv == 0)//当信息长度为0，说明客户端连接断开
break;
Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
client.Send(data, recv, SocketFlags.None);
}
Console.WriteLine("Disconnected from" + clientip.Address);
client.Close();
newsock.Close();