apps.py和appconfig在Django项目中有什么用途。如何以及为什么使用它？有人能简单地解释一下吗

Question

from django.apps import AppConfig


class App1Config(AppConfig):
    default_auto_field = 'django.db.models.BigAutoField'
    name = 'app1'

Answer 1

Django{a1}已经提供了最好的解释

To configure an application, create an apps.py module inside the application, then define a subclass of AppConfig there.

When INSTALLED_APPS contains the dotted path to an application module, by default, if Django finds exactly one AppConfig subclass in the apps.py submodule, it uses that configuration for the application. This behavior may be disabled by setting AppConfig.default to False.

If the apps.py module contains more than one AppConfig subclass, Django will look for a single one where AppConfig.default is True.

If no AppConfig subclass is found, the base AppConfig class will be used.