此程序实现了huffman编码，程序开始输入信源个数，之后输入对应的概率，若概率值不属于0~1或概率和大于1则会要求重新输入，最终输出编码表。-This program implements the huffman coding, the program began to enter the number of sources, and then enter the corresponding probability, if not a probability or probability 0 to 1 and greater than 1 will be required to re-enter, the final output code table.