c語言練習26——用遞歸法求n!

#include<stdio.h>
#include<stdlib.h>
//題目:用遞歸法求n的階乘
int main(){
int n;
long int s,a;
while(1){
printf("請輸入參數n:");
scanf("%d",&n);
    s=1;
    for(a=1;a<=n;a++)
    s=s*a;
printf("%d!=%ld\n________________________________\n",n,s);
}
return 0;
}