# Enter a code
class Animal(object):
count=0
def __init__(self,name,age):
self.name=name
self.age=age
Animal.count=Animal.count+1
pass
print(Animal.count)
dog=Animal('Bob',12)
print(Animal.count)
cat=Animal('Tina',19)
print(Animal.count)
print(dog.name,dog.age)
class Animal(object):
count=0
def __init__(self,name,age):
self.name=name
self.age=age
Animal.count=Animal.count+1
pass
print(Animal.count)
dog=Animal('Bob',12)
print(Animal.count)
cat=Animal('Tina',19)
print(Animal.count)
print(dog.name,dog.age)
2021-05-19
# Enter a code
class Animal(object):
def __init__(self,name,age):
self.name=name
self.age=age
pass
dog=Animal('Bob',12)
cat=Animal('Tina',19)
print(dog.name,dog.age)
注：
1.init首尾下划线各有两条
2.不可以直接print(dog)，要具体化
class Animal(object):
def __init__(self,name,age):
self.name=name
self.age=age
pass
dog=Animal('Bob',12)
cat=Animal('Tina',19)
print(dog.name,dog.age)
注：
1.init首尾下划线各有两条
2.不可以直接print(dog)，要具体化
2021-05-19
# Enter a code
class Animal():pass
dog=Animal()
cat=Animal()
dog.name='dog'
dog.age=12
cat.name='cat'
cat.age=19
print(cat.age,cat.name)
class Animal():pass
dog=Animal()
cat=Animal()
dog.name='dog'
dog.age=12
cat.name='cat'
cat.age=19
print(cat.age,cat.name)
2021-05-19
# Enter a code
class Animal():pass
dog=Animal()
cat=Animal()
class Animal():pass
dog=Animal()
cat=Animal()
2021-05-19
最赞回答 / weixin_慕哥4444959
isinstance(t,Person)print(isinstance(t,Person))isinstance(t,Student)print(isinstance(t,Student))isinstance(t,Teacher)print(isinstance(t,Teacher))TrueFalseTrue
2021-05-19
最新回答 / 慕九州4260586
class P(object): def __init__(self,name): self.name = nameclass Skill(object): def __init__(self,skill): self.skill = skill class F(Skill): def __init__(self,skill): super(F,self).__init__(skill) #self.skill = 'footba...
2021-05-18
教3.x的python的教程里用的解释器居然还是2.x，还得自己引入《未来》语法支持，答案里标注一个本地练习就行了？我一进来先看答案？线上编辑功能摆好看的？这简直就离谱，都多久了，这玩意没人维护升级吗？
2021-05-11