第5章例5-9

#include<stdio.h>
double fact_s(int n);
int main(void)
{
	int i,n;
	printf("Input n:");
	scanf("%d",&n);
	for(i=1;i<=n;i++)
		printf("%3d!=%.0f\n",i,fact_s(i));

	return 0;
}
double fact_s(int n)
{
	static double f=1;
	f=f*n;

	return(f);
}