/*接收消息
         * */
        public int receiveMsg()
        {
            byte[] recvBuf = new byte[4096];
            short  size    = 0;

            try
            {
                if (client.Receive(recvBuf, 0, 2, 0) != 2)
                {
                    return(0);
                }

                size = (short)CMsg.toInteger(recvBuf, 2);
                if (size > 0)
                {
                    if (size > CMsg.NETWORK_MSG_SIZE)
                    {
                        Console.WriteLine("Message Too Large");
                        return(0);
                    }
                    if (client.Receive(recvBuf, 2, size - 2, 0) == size - 2)
                    {
                        System.Array.Copy(recvBuf, msgStruct.GetBuf(), size);
                        msgStruct.Clear();
                        return(size);
                    }
                }
            }
            catch (System.Exception ex)
            {
                Console.WriteLine(ex.Message);
                return(0);
            }
            return(0);
        }