Python 中超级函数的多重继承和使用

Question

class Test:

    def __init__(self, name, age):
        self.name = name
        self.age = age

class Test1:

    def __init__(self, school, university):
        self.school = school
        self.university = university

    def get(self):
        print('josh')

class Test2(Test,Test1):

    def __init__(self, name1, age1, school1, university1):
        super().__init__(name = name1, age = age1 , school = school1,  university = university1)


t = Test2('john', 16, 'Harvard', 'Yale')

为什么我不能为父 class 属性赋值？比如上面的classes，为什么我不能执行下面的？

t.school # returns error 
t.university #returns error

但是，以下是有效的吗？

t.name
t.age

我想实现这个，完全靠super函数。

Answer 1

您必须在此处为每个基 classes.See 调用构造函数：

class Test:

    def __init__(self, name, age):
        self.name = name
        self.age = age

class Test1:

    def __init__(self, school, university):
        self.school = school
        self.university = university

    def get(self):
        print('josh')

class Test2(Test,Test1):

    def __init__(self, name1, age1, school1, university1):
        Test.__init__(self, name1, age1)
        Test1.__init__(self, school1, university1)


t = Test2('john', 16, 'Harvard', 'Yale')
print(t.name)
print(t.age)
print(t.school)
print(t.university)

Answer 2

我找到了一个解决方案 - 这只依赖于使用 super 函数来初始化所有（父 class）属性。

   class Test:

        def __init__(self, name, age, **kwargs):
            self.name = name
            self.age = age
            super().__init__(**kwargs)

    class Test1:

        def __init__(self, school, university, **kwargs):
            self.school = school
            self.university = university
            super().__init__(**kwargs)

        def get(self):
            print('josh')

    class Test2(Test,Test1):

        def __init__(self, name1, age1, school1, university1, **kwargs):
            kwargs['name'] = name1
            kwargs['age'] = age1
            kwargs['school'] = school1
            kwargs['university'] = university1
            super().__init__(**kwargs)

    t = Test2('john', 16, 'Harvard', 'Yale')
    print(t.name)
    print(t.age)
    print(t.school)
    print(t.university)

Python 中超级函数的多重继承和使用

Multiple Inheritance & Usage of Super Function In Python

multiple-inheritance

superclass

python-3.x