自适应的霍夫曼编码是一种扩展的熵编码方法，取得了更高的编码效果。这是几种自适应霍夫曼编码的实现方法。希望对大家有用。-adaptive huffman coding is an extended coding method ,which can get more efficient compression ratio. this is kinds of adaptive huffman coding methods. i hope it will be useful for people who research huffman code.