Python:在基类中使用派生类属性

class BaseClass:
    def __init__(self, name):
        self.name = name

class DerivedClass(BaseClass):
    def __init__(self, name, age):
        super().__init__(name)
        self.age = age

# 在基类中使用派生类的属性
class ExampleClass(BaseClass):
    def __init__(self, name, age):
        super().__init__(name)
        self.age = age
        self.derived = DerivedClass(name, age)

example = ExampleClass("John", 25)
print(example.derived.age)  # 输出：25

class BaseClass:
    def __init__(self, name):
        self.name = name

    def print_name(self, derived_name):
        print(f"Base name: {self.name}")
        print(f"Derived name: {derived_name}")

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

    def print_names(self):
        base = BaseClass(self.name)
        base.print_name(self.name)

derived = DerivedClass("John", 25)
derived.print_names()