擅长:python、mysql、java
<p>根据<a href="https://docs.djangoproject.com/en/2.0/topics/db/models/" rel="nofollow noreferrer">https://docs.djangoproject.com/en/2.0/topics/db/models/</a>,您可以在InvestmentChoice模型中添加如下内容:</p>
<p><code>entities = models.ManyToManyField(Entity, through='Offering')</code></p>
<p>希望有帮助!在</p>