本程序用C语言编写的哈夫曼编码(Huffman Coding)，该方法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-Huffman coding (Huffman, from Coding) this program written in C, the average probability to construct different prefix length of the shortest codeword in accordance with the chara