C语言 计算n的阶乘

Posted 2021-05-14 Aiden (winner)

#include<stdio.h>
int fun(int n){
		int f;
		if(1==n||0==n)
			f=1;
		else
			f=fun(n-1)*n;
		return(f);
}
void main(){
		int n;
		int x;
		printf("请输入一个正整数:");
		scanf("%d",&n);
		x=fun(n);
		printf("%d的阶乘为：%d\\n",n,x);
}