from abc import ABCMeta, abstractmethod
class Shape(metaclass=ABCMeta):
def __init__(self, color):
self.color = color
@abstractmethod
def draw(self):
pass
class Color(metaclass=ABCMeta):
@abstractmethod
def paint(self, shape):
pass
class Rectangle(Shape):
name = '长方形'
def draw(self):
self.color.paint(self)
class Circle(Shape):
name = '圆'
def draw(self):
self.color.paint(self)
class Line(Shape):
name = '线'
def draw(self):
self.color.paint(self)
class Red(Color):
def paint(self,shape):
print(f'红色的{shape.name}')
class Green(Color):
def paint(self,shape):
print(f'绿色的{shape.name}')
class Blue(Color):
def paint(self,shape):
print(f'蓝色的{shape.name}')
测试:
