protected DouyuPacket(DouyuPacket src)
 {
     this.pack = src.pack;
 }
 public ServerPacket(DouyuPacket srcPacket) : base(srcPacket)
 {
     data = base.Data;
 }
 public static void SendPack(this NetworkStream stream, DouyuPacket packet)
 {
     Send(stream, packet, 0, packet.Size);
 }