How should I do a while ( x < y ) in jinja2? I've seen the jinja2 docs, it seems like they only support for loop for a declared variable of array and while() is not supported at all.
I think your closest alternative with Jinja2 would be to use a for with range:
{% range number from 3 to 6 %}
{{ number }}
(...)
{% endrange %}
And you can pass the variables from your program to use them in the loop.
来源：https://stackoverflow.com/questions/13668025/how-to-do-a-while-x-y-in-jinja2