最新回答 / 土斤土斤
查了大量资料，大概是这样。python3的多继承采用的是c3算法，将复杂结构上的所有类都映射到一个线性顺序上，而这个顺序能够保证所有的类都被构造一次，这个也就是方法搜索的顺序mro针对题目中的代码，mro顺序为D→B→C→A，这也就是方法的搜索顺序，而每一次执行方法的时候，比如执行D类的方法，碰到super()后就会跳过接下来的语句而直接往右边的顺序的类中去继续搜索方法，所以D类的print语句就会被先跳过，变成搜索B类的方法，而B类的方法中也有super()，所以也是继续跳过，直到A类中没有可以跳过的语...
2022-10-09
1、子类定义的时候，需要在括号内写明继承的类；
2、在__init__()方法，需要调用super(Student, self).__init__(name, gender)，来初始化从父类继承过来的属性；
2、在__init__()方法，需要调用super(Student, self).__init__(name, gender)，来初始化从父类继承过来的属性；
2022-09-24
# Enter a code
class Animal(object):
count = 0
def __init__(self,name,age):
self.name = name
self.age = age
Animal.count += 1
dog = Animal('wangwang',1)
print(Animal.count)
cat = Animal('mimi',3)
print(Animal.count)
class Animal(object):
count = 0
def __init__(self,name,age):
self.name = name
self.age = age
Animal.count += 1
dog = Animal('wangwang',1)
print(Animal.count)
cat = Animal('mimi',3)
print(Animal.count)
2022-09-03
# Enter a code
class Animal(object):
count = 0
def __init__(self,name,age):
self.name = name
self.age = age
Animal.count += 1
dog = Animal('wangwang',1)
cat = Animal('mimi',3)
print(dog.count)
print(cat.count)
class Animal(object):
count = 0
def __init__(self,name,age):
self.name = name
self.age = age
Animal.count += 1
dog = Animal('wangwang',1)
cat = Animal('mimi',3)
print(dog.count)
print(cat.count)
2022-09-03
# Enter a code
class Animal(object):
def __init__(self,name,age):
self.name = name
self.age = age
dog = Animal('dog',1)
cat = Animal('cat',2)
print(dog.name,dog.age)
print(cat.name,cat.age)
class Animal(object):
def __init__(self,name,age):
self.name = name
self.age = age
dog = Animal('dog',1)
cat = Animal('cat',2)
print(dog.name,dog.age)
print(cat.name,cat.age)
2022-08-31
# Enter a code
class Animal():
pass
dog = Animal()
cat = Animal()
print(dog)
print(cat)
print(dog == cat)
class Animal():
pass
dog = Animal()
cat = Animal()
print(dog)
print(cat)
print(dog == cat)
2022-08-30
