阶乘.cpp

来自「Visual C++的课件和一些习题及答案」· C++ 代码 · 共 13 行

#include<iostream.h>
unsigned long int f(unsigned long int n)

{
	if(n==0||n==1)return(1);
	return n*f(n-1);
}
void main()
{    
	int m;
	cin>>m;
	cout<<"m!="<<f(m)<<endl;
}