Arbitrariness

代码说明：

  C#源码,随书源码,递归算法,排列组合 　　C#递归算法：0~N位数的排列组合，组合的数字在0~5之间，输入需要组合的位数，点击“计算”按钮，程序会列出所有符合条件的数列组合。一个学习C#递归算法的好范例。(C# source code, source code with the book, recursive algorithms, permutations and combinations C# recursive algorithm: 0 ~~ N digit permutation and combination, the combination of numbers 0 to 5, enter the number of bits need to combine, click on " Calculate" button, the program will List all eligible series combination. A good example of a recursive algorithm to learn C#.)