jinja for

https://jinja.palletsprojects.com/en/master/templates/#base-template

<h1>Members</h1>
<ul>
{% for user in users %}
  <li>{{ user.username|e }}</li>
{% endfor %}
</ul>

<dl>
{% for key, value in my_dict.items() %}
    <dt>{{ key|e }}</dt>
    <dd>{{ value|e }}</dd>
{% endfor %}
</dl>

循環變量	描述
loop.index
loop.index0
loop.revindex
loop.revindex0
loop.first
loop.last
loop.length
loop.cycle
loop.depth
loop.depth0
loop.previtem
loop.nextitem
loop.changed(*val)