额 我知道了......ImageField和FileField是一样的就是我自己弄得
from django.core.files.storage import FileSystemStorage
from django.conf import settings
import os
class OverwriteStorage(FileSystemStorage):
def get_available_name(self, name, max_length=None):
if self.exists(name):
os.remove(os.path.join(settings.MEDIA_ROOT, name))
return name
出的问题