p>这是您通常在查看函数中执行的操作。

This is something you usually do in your view functions.

aList = ["a", "b", "c"]
listAndFlags = [ (item,item in aList) for item in someQuerySet ]

现在您有一个简单的双元素列表，您可以显示

Now you have a simple two-element list that you can display

{% for item, flag in someList %}
    <tr><td class="{{flag}}">{{item}}</td></tr>
{% endfor %}