n的阶乘

[c]代码库

int factorial(int n);
int main(){
   int n;
   printf("please enter the number:");
   scanf("%d", &n);
   printf("the result is: %d\n", factorial(n));
   return 0;
}

int factorial(int n){
   int result;
   if(n != 1){
    result = factorial(n-1)*n;
   }
   else
    result = 1;
   return result;
}