[练习] for循环 打印n的阶层

要求：利用for 循环打印 任意数字n 的阶层

//1*2*3*4......n-1*n

#include <stdio.h>
int main()
{  
  int i = 0;
  int n = 0;
  int ret = 1;
  scanf_s("%d", &n);
  
  
  for (i=1; i<=n; i++)
  {
    ret = ret * i;
  }
  printf("%d\n", ret);
  
  

  return 0;
}