如何在Jinja2中模拟while循环 [英] How to simulate while loop in Jinja2

问题描述

我如何在jinja2中执行以下操作:

How would I do the following in jinja2:

while apples < oranges:
    # some work here.

根据 http://jinja.pocoo.org/docs/dev/extensions/#loop-controls ，由于出现的错误，Jinja2不支持while循环.

According to http://jinja.pocoo.org/docs/dev/extensions/#loop-controls, and by the error I am getting, Jinja2 does not support while loops.

问题是，只要apples的值小于oranges

The question is I want to continuously do some work as long as the value of apples is less than that of oranges

感谢您的帮助.

也等同于while True:的东西也很好.

Also something equivalent to while True: is good also.

推荐答案

要在Jina2中循环，您必须使用:for.要在for块中结束循环，可以使用break. 请参阅: http://jinja.pocoo.org/docs/extensions/#loop-controls .

To loop in Jina2 you have to use : for. To end the loop in the for block you can use break. See : http://jinja.pocoo.org/docs/extensions/#loop-controls.

jinja_env = Environment(extensions=['jinja2.ext.loopcontrols'])

您可以使用以下方法创建无尽"循环:

An "endless" loop you can create with:

{% for _ in range(1, large_number) %}

   {% if loop.index > stop_at %}{% break %}{% endif %} 

{% endfor %}

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