删除实例不会删除关联的文件.您可以考虑使用signals精确地表示pre_delete.您可以编写一个接收器，在其中可以删除关联的文件.

Deleting an instance would not delete the associated file. You may consider using signals to be precise pre_delete. You can write a receiver where in you can delete the associated file.

from django.dispatch import receiver
from django.db.models.signals import pre_delete 

@receiver(pre_delete)
def func_name(sender, instance, **kwargs):
    your logic

您可以在此处找到文档..

You can find documentation here.