多重继承问题：super中传一个多重继承的类，只能识别到第一个

源自：3-4 Python中的多态

多重继承问题：super中传一个多重继承的类，只能识别到第一个

问题描述：
B继承A，Y继承Z，BY继承B和Y，那么BY中的super只能代表B（如果是YB则只能代表Y），希望是可以super可以代表BY，代码如下：
class SkillMixin(object):
def init(self,skillName):
self.skillName = skillName
class BasketballMixin(SkillMixin):
def init(self,skillName):
super(BasketballMixin,self).init(skillName)

class Person(object):
def init(self,name,gender):
self.name = name
self.gender = gender
class Student(Person):
def init(self,name,gender,score):
super(Student, self).init(name, gender)
self.score = score

class BasketballStudent(Student,BasketballMixin,):
def init(self,name,gender,score,skillName):
super(BasketballStudent,self).init(name,gender,score,skillName)

bs = BasketballStudent('basketboy','man',59,'basketball')
print(bs.name,bs.skillName)

提问者：ipmshen 2022-04-24 15:48

个回答

Dreamweaver3662984

2022-08-10 16:01:35

class Person:
def __init__(self, name, gender):
self.name = name
self.gender = gender

class SkillMixin:
def __init__(self, skill):
self.skill = skill
def say(self):
print("技能是 %s" %(self.skill))

class BasketballMixin(SkillMixin):
def __init__(self, skill):
super(BasketballMixin, self).__init__(skill)

class Student(Person, BasketballMixin):
def __init__(self, name, gender, score, skill):
super(Student, self).__init__(name, gender)
BasketballMixin.__init__(self, skill)
self.score = score
def say(self):
print("学生叫%s，现在读%s，考试分数为%d，喜欢%s" %(self.name, self.gender, self.score, self.skill))

class Teacher(Person):
def __init__(self, name, gender, subject):
super(Teacher, self).__init__(name, gender)
self.subject = subject
def say(self):
print("老师叫{}，现在在{}教{}。".format(self.name, self.gender, self.subject))

t = Teacher('xx', '一年级', '数学')
s = Student('小明', '一年级', 99, '篮球')
# t.say()
s.say()

0
dotasfans

2022-07-02 12:14:01
class Person(object):
    def __init__(self):
        print("I am person")

class Student(Person):
    def __init__(self):
        super(Student,self).__init__()
        print("i am student")
        self.name = 'Andy'


class SkillMixin(object):
    def __init__(self):
        print("i can skill")

class BasketballMixin(SkillMixin):
    def __init__(self):
        super(BasketballMixin,self).__init__()
        print("i can basketball")
        self.ball = "basketball"




class BasketballStudent(Student,BasketballMixin):
    def __init__(self):
        super(BasketballStudent,self).__init__()
        print("student can basketball")

stu = BasketballStudent()

print(stu.name)

print(stu.ball)

打印姓名没问题，打印球就报错，很好的说明了这个问题

0
dotasfans

2022-07-02 12:12:30

我也发现这个问题，多重继承好像是个笑话，本质上还是只继承了第一个

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