problem1.c

北大青鸟软件工程师ppt的学生用书源代码

# include <stdio.h>
void main()
{
  int item;
  float tot_amt,discount, pay_amt;

  printf("\n 请输入购买商品的件数：");
  scanf("%d",&item);

  printf("\n 请输入购物总金额：");
  scanf("%f",&tot_amt);

  if(item >= 10 && tot_amt >= 10000)
  {
      discount =(float) (tot_amt * 0.10);   
  }
  else
  {
      discount = 0.0;
  }
  
  pay_amt = tot_amt - discount;

  printf("\n 可得到折扣额 = %1.2f $.\n ", discount);
  printf("\n 折扣后应付金额 = %1.2f $.\n ", pay_amt);
}