Huffman编码又称哈夫曼编码，是一种可变长编码方式.码的原理是：将使用次数多的代码转换成长度较短的代码，而使用次数少的可以使用较长的编码，并且保持编码的唯一可解性。Huffman算法的最根本的原则是：累计的(字符的统计数字*字符的编码长度)为最小，也就是权值(字符的统计数字*字符的编码长度)的和最小。-Huffman coding, also known as Huffman coding is a variable length encoding. Code principle is: use the number code conversion grow shorter code, use fewer can use a longer encoding andmaintain encoded solvability. Huffman algorithm is the most fundamental principles are: cumulative (character statistics* character encoding length) is the smallest, is the right value (character statistics* character encoding length) and the minimum.