第1个回答 2016-06-26
public class Increase {public static long rep(int n) {long i = 0;if (n == 0 || n == 1)i = 1;elsei = n * rep(n - 1);return i;}public static void main(String[] args) {System.out.println(rep(5));System.out.println(rep(10));System.out.println(rep(15));}}结果为:12036288001307674368000