product_list = []
# Add some products to the list
# [ Name, Price, Summer Only, Sale ]
product_list.append(['Apple', 5.50, true, false])
product_list.append(['Orange', 9.0, false, false])
product_list.append(['Spam', 0.5, false, true])
# Suppose the user has some money
money = 5.0
for prd in product_list:
if prd[1] > money:
print("You can buy {0}".format(prd[0]))
elif prd[3] and prd[1]*0.1 > money:
print("Yay, {0} is on sale. You can buy {0}".format(prd[0]))
更好的选择是创建一个类来存储有关产品的信息:
class Product:
def __init__(self, name, price, summer, sale):
self.name = name
self.price = price
self.is_summer = summer
self.is_sale = sale
def is_affordable(self, money):
if self.is_sale: return self.price*0.1 <= money
return self.price <= money
# Then you can again have a list of product
my_products = []
my_products.append(Product('Apple', 5.5, true, false))
my_products.append(Product('Spam', 0.1, false, true))
money = 5.0
for prd in my_products:
if prd.is_sale:
print(" We are currently having a sale on {1} -".format(prd.name))
if prd.is_affordable(money):
print("You can afford to buy {0}".format(prd.name))
else:
print("You can not afford to buy {0}".format(prd.name))
我建议创建一个产品列表,每个产品都有特定的属性(理想情况下,您可以实现一个表示产品的类)。然后您可以循环查看每个产品,并检查价格等条件:
更好的选择是创建一个类来存储有关产品的信息:
通过使用类,可以为不同的属性指定有意义的名称。您还可以定义方法来确定诸如可承受性之类的事情,并为特定类型的商品派生类。你知道吗
也许一个可购买的价格清单对你在自动售货机上实现这一点会更好。你知道吗
我建议使用
for
循环:不确定您的其余数据是如何存储/显示的,因此可能需要对您的问题/本文进行进一步的编辑。你知道吗
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