<c语言经典100例>c24 递归求n!

/* 【程序24】 * 题目：利用递归方法求n的阶乘“n!”。* 程序分析：递归公式：n = n*((n-1)!) , 边界条件：n == 1 */#include <stdio.h>int recursion(int n){if (n == 1){return n;}return n*recursion(n-1);}int main(int argc, char *argv[]){int n;printf("Input(1-10):");scanf("%d", &n);printf("%d! = %d\n", n, recursion(n));return 0;}