这是应用移位算法生成组合的Perl包，包含两套函数，可生成形如 C(m,n)的数字序列组合，和多组的综合组合，具体请研读代码，有简要说明的。-This is the application of displacement algorithm to generate the Perl package combinations, including two sets of functions, such as creating form C (m, n) the number of sequence