检索基页类型的所有子级

class Page:
    pass

class HomePage(Page):
    pass

class AboutPage(Page):
    pass

class ContactPage(Page):
    pass

def get_subclasses(cls):
    return [subclass for subclass in cls.__subclasses__()]

# 使用示例
subpages = get_subclasses(Page)
for subpage in subpages:
    print(subpage.__name__)

import inspect
import sys

def find_all_subclasses(cls):
    all_subclasses = []
    for module in sys.modules.values():
        for name, obj in inspect.getmembers(module, inspect.isclass):
            if issubclass(obj, cls) and obj != cls:
                all_subclasses.append(obj)
    return all_subclasses

# 使用示例
all_subpages = find_all_subclasses(Page)
for subpage in all_subpages:
    print(subpage.__name__)