public static byte[] UnpackingMessage(Socket socket)
        {
            Byte[] receiveBytes = new Byte[1024];
            try
            {
                List<Byte> receiveList = new List<byte>();
                Int32 receiveCount = 0;//每次receive的数据长度
                do
                {
                    receiveCount = socket.Receive(receiveBytes, receiveBytes.Length, 0);
                    Byte[] bytes = new Byte[receiveCount];
                    Buffer.BlockCopy(receiveBytes, 0, bytes, 0, receiveCount);
                    receiveList.AddRange(bytes);
                } while (socket.Available > 0);

                Byte[] lenBytes = receiveList.GetRange(1, 7).ToArray();
                int len = Convert.ToInt32(Encoding.UTF8.GetString(lenBytes), 16);
                if (len == (receiveList.Count - 8))
                {
                    receiveList.RemoveRange(1, 7);
                    Byte[] objBytes = receiveList.ToArray();
                    return objBytes;
                }
                else
                {
                    return null;
                }
                
                
            }
            catch (SocketException ex)
            {
                socket.Close();
                return null;
            }
}