class
Animal:
def
__init__(self, name): # Constructor of the class
self.name = name
def talk(self): # Abstract method, defined by convention onlyraise NotImplementedError("Subclass must implement abstract method")
class Cat(Animal):
def talk(self):
return‘Meow!‘class Dog(Animal):
def talk(self):
return‘Woof! Woof!‘
animals = [Cat(‘Missy‘),
Dog(‘Lassie‘)]
for animal in animals:
print animal.name + ‘: ‘ + animal.talk()
#
!_*_coding:utf-8_*_
#
__author__:"Alex Li"
class
SchoolMember(object):
members = 0 #初始学校人数为0def__init__(self,name,age):
self.name = name
self.age = age
def tell(self):
passdef enroll(self):
‘‘‘注册‘‘‘
SchoolMember.members +=1
print("