from abc import ABCMeta,abstractmethod #Import the ABCMeta metaclass from the abc module
class GraphicRule(metaclass=ABCMeta): #Interface Class:
@abstractmethod
def area(self,length,width):
pass
@abstractmethod
def perimeter(self,length,width):
pass
class Rectangle(GraphicRule): #After the subclass inherits the interface class, the good specifications specified in the interface class can be implemented.
def __init__(self,length,width):
self.length = length
self.width = width
#Implement the specified specifications in the parent class interface class
def area(self,length,width):
return length * width
def perimeter(self,length,width):
return (length+width)*2
r = Rectangle(2,3)
r.area(2,3)
from abc import ABCMeta,abstractmethod #Import the ABCMeta metaclass from the abc module
class GraphicRule(metaclass=ABCMeta): #Interface Class:
@abstractmethod
def area(self,length,width):
pass
@abstractmethod
def perimeter(self,length,width):
pass
class Rectangle(GraphicRule): #After the subclass inherits the interface class, the good specifications specified in the interface class can be implemented.
def __init__(self,length,width):
self.length = length
self.width = width
#Implement the specified specifications in the parent class interface class
def area(self,length,width):
return length * width
def perimeter(self,length,width):
return (length+width)*2
r = Rectangle(2,3)
r.area(2,3)
