Django - 在模板的for循环中迭代数字
问题描述：
我的 django 模板中有以下 for 循环显示天数.我想知道，是否可以在循环中迭代一个数字(在下面的情况下 i).还是必须先存到数据库中，然后以days.day_number的形式查询?
I have the following for loop in my django template displaying days. I wonder, whether it's possible to iterate a number (in the below case i) in a loop. Or do I have to store it in the database and then query it in form of days.day_number?
{% for days in days_list %}
<h2># Day {{ i }} - From {{ days.from_location }} to {{ days.to_location }}</h2>
{% endfor %}
答
Django 提供了它.您可以使用:
Django provides it. You can use either:
-
{{ forloop.counter }}索引从 1 开始. -
{{ forloop.counter0 }}索引从 0 开始.
-
{{ forloop.counter }}index starts at 1. -
{{ forloop.counter0 }}index starts at 0.
在模板中，您可以:
{% for item in item_list %}
{{ forloop.counter }} # starting index 1
{{ forloop.counter0 }} # starting index 0
# do your stuff
{% endfor %}