def set_route(instance,filename):class
name = instance.nameroute
return '/route/%s'%(name,filename)file
class index(models.Module):model
name = models.CharField(max_length=30)文件
file = models.FileFiled(upload_to=set_route)upload
文件路徑保存在 settings.MEDIA_ROOT='/SMEDIA/'+set_route返回的路徑return