C# 使用socket 进行通讯

// 本机ip和端口
var localIp = new IPEndPoint(IPAddress.Parse(ip), port);
var udpSocket = new Socket(serverIp.AddressFamily, SocketType.Dgram, ProtocolType.Udp);
udpSocket.Bind(localIp);


public void Send(string ip, int port, byte[] buffer)
{
    var remote = new IPEndPoint(IPAddress.Parse(ip), port);
    udpSocket.SendTo(buffer, remote);
}

// 本机ip和端口
var localIp = new IPEndPoint(IPAddress.Parse(ip), port);
var udpSocket = new Socket(serverIp.AddressFamily, SocketType.Dgram, ProtocolType.Udp);
udpSocket.Bind(localIp);


var buffer = new byte[65536];
EndPoint sendIp = new IPEndPoint(IPAddress.Any, port);
var length = udpSocket.ReceiveFrom(buffer, Constants.UDP_BUFFER_SIZE,
    SocketFlags.None, ref sendIp);

var remoteIp = new IPEndPoint(IPAddress.Parse(ip), port);
var socket = new Socket(clientIp.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
socket.Connect(remoteIp);

var buffer = new byte[8];

socket.Send(buffer);

private void Send(byte[] buffer, int length)
{
    var index = 0;
    while (index < length)
    {
        var size = socket.Send(buffer, index, length - index, SocketFlags.None);
        index += size;
    }
}

var localIp = new IPEndPoint(IPAddress.Parse(ip), port);
var tcpSocket = new Socket(serverIp.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
tcpSocket.Bind(localIp);

tcpSocket.Listen(10);
while (true)
{
    var client = tcpSocket.Accept();

}

var buffer = new byte[8];
client.Receive(buffer);

private byte[] Receive(int length)
{
    var buffer = new byte[length];
    var index = 0;
    while (index < length)
    {
        var size = client.Receive(buffer, index,
            length - index, SocketFlags.None);
        index += size;
    }
    return buffer;
}