以下哪个Python代码可以正确实现上述购物找零的模拟计算？

sh289060 单选题共个子题

现有如下购物场景：某商店矿泉水单价为2元，面包单价为4元。一位顾客购买了3瓶矿泉水和2个面包，支付了20元，需要通过代码模拟计算收银员应找零的金额。

water = 2
bread = 4
count_water = 3
count_bread = 2
pay = 20
total = water * count_water + bread * count_bread
change = pay - total
print(change)

water = 2
bread = 4
count_water = 3
count_bread = 2
pay = 20
total = water + count_water + bread + count_bread
change = pay - total
print(change)

water = 2
bread = 4
count_water = 3
count_bread = 2
pay = 20
total = water * count_water + bread * count_bread
change = total - pay
print(change)

water = 2
bread = 4
count_water = 3
count_bread = 2
pay = 20
total = water * count_water * bread * count_bread
change = pay - total
print(change)

正在加载题目数据…

第空

已答 /

子题

第空

提示

该题型需在试卷/作业中作答，单题练习暂不支持

答案解析