在学习父类继承中,调用子类的方法显示missing 1 required positional argument:
代码如下:
# 以上是父类
class IceCreamStand(Restaurant):
"""冰激凌"""
def __init__(self, restaurant_name, cuisine_type):
"""初始化父类属性"""
super().__init__(restaurant_name, cuisine_type)
self.flavors = ['a','b']
def describe_flavors(self, flavors):
print('We have following flavors:')
for flavor in flavors:
print(f'-{flavor}')
my_icecreamstand = IceCreamStand('蜜雪冰城','奶茶')
my_icecreamstand.describe_flavors()
这是从《到实践中》练习9-6的题
显示结果为:
Traceback (most recent call last):
File "D:\Sublime Text\restaurant.py", line 39, in
print(my_icecreamstand.describe_flavors())
TypeError: describe_flavors() missing 1 required positional argument: 'flavors'