哈夫曼编/译码器:利用哈夫曼编码进行通信可以大大提高信道利用率，缩短信息传输入时间，

降低成本，但是，这要求发送端通过一个编码系统对待传输数据先进行编码，在

接收端将传来的数据进行译码。对于双工信道（可双向传输的信道），每端都需

要一个完整的编/译码系统。-Huffman encoder/decoder: the use of Huffman coding can greatly improve the communication channel utilization, information Chuan shorter input time, reduce costs, however, this requires the sending end through a coding system to treat the first encoded data, in the receiving end to decode the data came from. For duplex channel (which can be two-way transmission channel), each client requires a full encoder/decoder system.