八成是你这里： pub_date = models.DateTimeField('date published') 写成了DateField 。新手解决方法：删掉已有数据，重新makemigrations和migrate
八成是你这里： pub_date = models.DateTimeField('date published') 写成了DateField 。新手解决方法：删掉已有数据，重新makemigrations和migrate