django在模板中的for循环中仅打印一个值

问题描述：

我只想显示模板中for循环的一个值. 假设我有这个:

I want to display only one value from for loop in template. Let's say I have this:

{% for category in categories %}
    {{category.name}}
    <a href="{% url "my_url" category.id %}">See All</a>
{% endfor %}

如果我有5个类别，则请参阅全部打印5次.我怎么只能打印一次. 非常感谢.

If I have 5 category then See All in being printed 5 times. How can I only print it once.. Thanx in adnvance..

答

您应该拥有一个包含所有类别的主页，您可以在其中将其发送给它context['categories']

You should have a main page with all your categories in which you will send it context['categories']

如果您不需要详细地在类别之间建立链接，只需在views.py中发送当前类别:

And if you don't need to have a link between your categories in detail just send the current category in the views.py :

context['category']

如果您要做的只是中断循环，则无法使用django模板，但可以使用slice:

If all you want to do is break in the loop you can't in django template but you can use slice :

{% for category in categories|slice:":1" %}

它只会循环一次一次