说明：  哈夫曼编码(Huffman Coding)，又称霍夫曼编码，是一种编码方式，哈夫曼编码是可变字长编码(VLC)的一种。Huffman于1952年提出一种编码方法，该方法完全依据字符出现概率来构造异字头的平均长度最短的码字，有时称之为最佳编码，一般就叫做Huffman编码（有时也称为霍夫曼编码）。
(Huffman encoding (Huffman Coding), also known as Hoffman encoding, is an encoding method, and Huffman encoding is a variable word length coding (VLC) one. In 1952 Huffman proposed an encoding method, the average length of the method based on the character completely different prefix probability to construct the shortest codeword, sometimes called the best encoding, generally called Huffman encoding (sometimes known as Hoffman encoding).)