Question

python的新手。我在尝试循环计算柠檬水摊位的折扣时遇到麻烦，正在处理的示例很简单

柠檬水8盎司= 1.20＃无折扣

柠檬水12盎司= 1.75＃（4杯或更少）

柠檬水每5杯12盎司= 1.35折扣，少于5折扣不适用。例如，如果客户购买了8个大杯子，则5个会打折，而3个不会打折。

有关如何为该问题创建函数和变量的任何帮助。我知道这是基本知识，但对python来说是新的。

Answer 1

查看下面的代码和相关注释。

#Lemonade prices variables
price_8oz = 1.2
price_12oz_without_discount = 1.75
price_12oz_discount = 1.35

#Function to calculate price
def price(no_8oz, no_12oz):

    #Total price of 8 oz is price multiplied by no of 8oz cups
    total_price_8oz = price_8oz*no_8oz

    #Number of 12oz without discount is the remainder after dividing by 5
    num_12oz_cups_without_discount = no_12oz%5

    #Number of 12oz with discount is total cups minus number of 12oz cups without discount
    num_12oz_cups_with_discount = no_12oz - num_12oz_cups_without_discount

    #Total price for 12oz cups
    total_price_12oz = num_12oz_cups_without_discount*price_12oz_without_discount + num_12oz_cups_with_discount*price_12oz_discount

    #Total price for all lemonades
    total_price = total_price_8oz + total_price_12oz

    return total_price

print(price(5, 5))
# 5*1.2 + 5*1.35 = 12.75
print(price(5, 4))
# 5*1.2 + 4*1.75 = 13.0
print(price(5, 14))
# 5*1.2 + 10*1.35 + 4*1.75 = 26.5

Answer 2

这是一种可能的方法：

Python函数计算折扣

2 个答案: