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 ",i,fact_s(i));

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

 return(f); }