说明：  这是一个用Turboc2.0写的程序，实现了组合数学的字典序法。详细可以参考卢开澄的《组合数学》清华大学出版社
(Turboc2.0 used to write procedures to achieve a combination of mathematics lexicographic law. Detailed information can be opened Cheng Lu "Combinatorial Mathematics" Qinghua University Press)