擅长:python、mysql、java
<p>考虑到您正在为许多关系使用中间表,请在作者或图书模型上使用<a href="https://docs.djangoproject.com/en/2.0/ref/models/fields/#django.db.models.ManyToManyField.through_fields" rel="nofollow noreferrer">ManyToManyField.through_fields</a></p>
<p>对于进一步查询<a href="https://docs.djangoproject.com/en/2.0/topics/db/examples/many_to_many/" rel="nofollow noreferrer">ManytoMany</a>ORM示例也很有用</p>