Python如何在子类中添加一个存储列表的属性？

Question

问题遇到的现象和发生背景

Python课后习题要求“添加一个名为flavors的属性，用于存储一个由各种口味冰淇淋组成的列表”。

问题相关代码，请勿粘贴截图

class Restaurant():
    """一次模拟餐馆的简单尝试"""
    
    def __init__(self,restaurant_name,cuisine_type):
        """初始化属性restaurant_name和cuisine_type"""
        self.restaurant_name = restaurant_name
        self.cuisine_type = cuisine_type
        self.number_severed = 0
            
    def describe_restaurant(self):
        """描述餐馆信息"""
        print("\nThe restaurant's name is "+self.restaurant_name.title()+".")
        print("The cuisine's type of the restaurant is "+self.cuisine_type.title()+".")
        
    def open_restaurant(self):
        """指出餐馆正在营业"""
        print("\nThe restaurant is opening!")
        
    def read_number_severed(self):
        """打印餐馆就餐人数"""
        print("\nThe number of the severed is "+str(self.number_severed)+".")
        
    def set_number_served(self,number):
        """设置就餐人数"""
        self.number = number
        
    def increment_number_served(self,add):
        """设置就餐人数递增量"""
        self.add = add
        

#编写一个名为IceCreamStand的类，继承Restaurant()类
#添加一个名为flavors的属性，用于存储一个由各种口味的冰淇淋组成的列表
#编写一个显示这些冰淇淋的方法
class IceCreamStand(Restaurant):
    """冰淇淋小店的独特之处"""
    
    def __init__(self,restaurant_name,cuisine_type,flavors):
        """
        初始化父类的属性，再初始化冰淇淋小店特有的属性
        """
        super().__init__(restaurant_name,cuisine_type)
        self.flavors = flavors
        
    def read_flavors(self):
        """显示冰淇淋口味"""
        print("The flavors is "+self.flavors+".")

        
#创建一个IceCreamStand实例，并调用这个方法     
icecreamstand = IceCreamStand('icecream','sweet','chocolate')   
icecreamstand.read_flavors()

运行结果及报错内容

运行没有报错

我想要达到的结果

flavors可以存储列表

Answer 1

参数前面加个星号*，传进去的就变成元组了，和列表差不多，不过关键是看你想怎么调用它。

class IceCreamStand(Restaurant):
    """冰淇淋小店的独特之处"""
    
    def __init__(self,restaurant_name,cuisine_type,*flavors):
        """
        初始化父类的属性，再初始化冰淇淋小店特有的属性
        """
        super().__init__(restaurant_name,cuisine_type)
        self.flavors = flavors
        
    def read_flavors(self):
        """显示冰淇淋口味"""
        for i in self.flavors:
            print("There are flavors of "+i+".")

icecreamstand = IceCreamStand('icecream','sweet','chocolate','stawberry','milk','vanilla')   
icecreamstand.read_flavors()

输出为：

There are flavors of chocolate.
There are flavors of stawberry.
There are flavors of milk.
There are flavors of vanilla.