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#创建一个基类
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class Restaurant:
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#构造方法
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def __init__(self,name):
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'''
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:param name:餐厅名称
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'''
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self.name=name
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self.menu={}
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self.orders=[]
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#展示餐厅菜单
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def display_menu(self):
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print("餐厅菜单")
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for i in self.menu:
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print(self.menu)
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#允许顾客根据菜品名称和数量下单，检查菜品是否存在，计算总金额并添加到订单列表中
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def add_order(self,customer_name,dish_name,price,quantity,amonut):
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#检查库存是否够用
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'''
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:param customer_name:顾客姓名
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:param dish_name:菜品名称
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:param price:
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:param quantity:菜品数量
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:param amonut:库存数量
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:return:
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'''
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if amonut<=quantity:
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if dish_name in self.menu:
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total_price=price*quantity
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self.orders.append(total_price)
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amonut-=quantity
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print(f"{customer_name}:",f"{self.name}","order:",{"dish:"f"{quantity}"},"toatl:"f"{amonut}")
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else:
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return f'{dish_name}不存在，请重新下单'
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#接受菜品名称和菜品价格
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def add_dish(self,dish_name,price):
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'''
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:param dish_name: 菜品名称
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:param price: 价格
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:return:
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'''
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if dish_name in self.menu:
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print("菜品已经在菜单当中，请勿重新添加")
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else:
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self.menu[price]=dish_name
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return f'菜品添加成功'
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#展示所有顾客订单
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def display_orders(self):
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for i in self.orders:
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return f""
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#使用多态创建一个方法
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def welcome_message(self):
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print("欢迎光临")
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#创建子类，并基础父类
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class FastFoodRestaurant(Restaurant):
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#构造函数
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def __init__(self,name,price):
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super().__init__(name)
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self.discounts={}
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#创建打折功能
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def set_discount(self,price):
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discount_price=price*0.8
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print(f"打折后的价格为{discount_price}")
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#将打折菜品信息记录在实例变量discounts中
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def add_discounts(self,dish_name,price):
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self.discounts[price]=dish_name
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return self.discounts
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#使用多态
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def welcome_message(self):
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print("欢迎光临我们快餐店")
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def welcome_message(restaurant):
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print("")
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#创建两个餐厅实例
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restaurant1=Restaurant("中餐厅")
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restaurant2=Restaurant("快餐店")
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#添加菜品
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print(restaurant1.add_dish("兰州拉面", 10))
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print(restaurant1.add_dish("宫保鸡丁", 20))
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#创建一个顾客实例
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print(restaurant1.add_order("suaoxuan", "鱼香肉丝", 21, 20, 21))
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print(restaurant2.add_order("xiaoli", "兰州拉面", 25, 27, 30))
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