擅长:python、mysql、java
<p>这里的技巧是使用<a href="https://docs.djangoproject.com/en/2.2/ref/models/expressions/#f-expressions" rel="nofollow noreferrer">^{<cd1>}-expression</a></p>
<pre><code>part_models_scad_files = Model3D.objects.select_related('part_of').filter(part_of__isnull=False, id=F('id')).values_list('scad_File', flat=True)
</code></pre>