如何从基类装饰子类方法？

class BaseClass:
    def base_method(self):
        print("This is the base method.")

    def decorator(self, func):
        def wrapper():
            print("Before executing the subclass method.")
            func()
            print("After executing the subclass method.")
        return wrapper


class SubClass(BaseClass):
    @BaseClass.decorator
    def sub_method(self):
        print("This is the subclass method.")


# 创建子类对象并调用子类方法
sub_obj = SubClass()
sub_obj.sub_method()

Before executing the subclass method.
This is the subclass method.
After executing the subclass method.