擅长:python、mysql、java
<p>我想你在找<code>modelform_factory</code><a href="https://docs.djangoproject.com/en/1.10/ref/forms/models/#modelform-factory" rel="nofollow noreferrer">https://docs.djangoproject.com/en/1.10/ref/forms/models/#modelform-factory</a></p>
<pre><code>from django.forms.models import modelform_factory
if condition:
model = models.MultipleChoiceQuestion
else:
model = models.EssayQuestion
runtimeform_class = modelform_factory(model, fields=(...), )
</code></pre>