如何在 Django 模板中引用列表中的最后一项?{{ list.-1.key }} [英] How can reference the last item in a list in a Django template? {{ list.-1.key }}

问题描述

如果我有一个未知长度的上下文中的变量，例如;
list=[{'key':'A'},{'key':'B'},{'key':'C'}]

if I have a variable in the context of unknown length, for example;
list=[{'key':'A'},{'key':'B'},{'key':'C'}]

我怎样才能得到最后一个对象?{{ list.0.key }} 适用于第一个，但 {{ list.-1.key }} 给出;
无法解析余数:'-1.key' from 'list.-1.key'

How can I get the last object? {{ list.0.key }} works for the first, but {{ list.-1.key }} gives;
Could not parse the remainder: '-1.key' from 'list.-1.key'

推荐答案

感谢大家的帮助，这让我意识到我可以使用 带标签.

Thanks everyone for you help, it lead me to the realisation that I can use the with tag.

{% with list|last as last %}
    {{ last.key }}
{% endwith %}

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