擅长:python、mysql、java
<p>使用筛选器标记显示3条注释,<a href="https://docs.djangoproject.com/en/2.2/ref/templates/builtins/" rel="nofollow noreferrer">https://docs.djangoproject.com/en/2.2/ref/templates/builtins/</a>
您可以在自定义筛选器标记中找到每个线程的最新3个答案,如下所示</p>
<pre><code>answers = Answer.objects.filter(Thread = Thread).order_by('date')[0:3]
</code></pre>