自适应(或动态)哈夫曼算法取消了统计，可在压缩数据时动态调整哈夫曼树，这样可提高速度。因此，哈夫曼编码效率高，运算速度快，实现方式灵活。-Adaptive (or dynamic) Huffman algorithm to cancel the statistics, the data can be dynamically adjusted in the compressed Huffman tree, which can improve speed. Therefore, the Huffma