编制一个哈夫曼编/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，缩短信息传输时间，降低传输成本。-Preparation of a Huffman encoder/decoder. Huffman coding communication can greatly improve the channel utilization, shorten the time of transmission of information, reduce the transmission cost.

改程序包含通信系统中卷积码编码器，维特比硬译码子程序和维特比软译码子程序-Reform program includes communication system convolutional code encoder, Viterbi decoding routines hard and soft Viterbi decoding routines