小结：本程序能够压缩ＡＳＣＩＩ码在１２８以内的字符组成的程序．压缩效率较高，解压正确，而且容错能力较好。需要改进的地方是：可以把压缩范围增大，使之更具有使用价值。-Summary: This procedure can be compressed ASCII code less than 128 characters in the composition process. Higher compression efficiency, extracting the right way, and b