Huffman Coding是一种无损压缩编码方式，以哈夫曼树—即最优二叉树，带权路径长度最小的二叉树，经常应用于数据压缩。-Huffman Coding is a lossless compression method to Huffman tree- that is the optimal tree, weighted path length of the smallest binary tree, often used in data compression.