django forloop.counter 操作

Question

我想知道如何在 django 中复制它：

for photo in gallery
    if counter is 1 
        then use this photo
     endif
endfor

如果forloop计数器为“1”，我如何检查它？

Answer 1

{% for photo in gallery %}
    {% if forloop.counter == 1 %}
       Do something with {{ photo }}.
    {% endif %}
{% endfor %}

这相当于：

{% for photo in gallery %}
    {% if forloop.first %}
       Do something with {{ photo }}.
    {% endif %}
{% endfor %}

参考：Django docs