子类能否在 Python 中访问其超类的属性？

Question

在Python中，子类是否可以访问其超类的属性？下面是一个简短的示例代码，我想使用它。

class A:
    def __init__(self, some_value):
        self.some_property_A = some_value
        
    class B:
        def __init__(self):
            self.some_property_B = 0
            if some_property_A == 1:     # <-------- How can I make this line work?
                self.some_property_B = 1

提前感谢您的帮助。

Answer 1

你的 Class B 不是你的子类。

示例如下：

# superclass
class Person():
    def __init__(self, per_name, per_age):
        self.name = per_name
        self.age = per_age
 
# subclass      
class Employee(Person):
    def __init__(self, emp_name, emp_age, emp_salary):
        self.salary = emp_salary
        Person.__init__(self, emp_name, emp_age)
        
emp = Employee("John", 20, 8000)  # creating object of superclass
 
print("name:", emp.name, "age:", emp.age, "salary:", emp.salary)

这就是你如何使用超类的变量。如需更多信息，请访问：

https://www.codesdope.com/course/python-subclass-of-a-class/#:~:text=All%20the%20attributes%20and%20methods,and%20methods%20of%20the%20superclass.

子类能否在 Python 中访问其超类的属性？

Can a subclass access attributes from its superclass in Python?

python

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