Python 在 jinja 中设置变量
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/3727045/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Set variable in jinja
提问by MyTux
I would like to know how can I set a variable with another variable in jinja. I will explain, I have got a submenu and I would like show which link is active. I tried this:
我想知道如何在 jinja 中使用另一个变量设置变量。我会解释一下，我有一个子菜单，我想显示哪个链接处于活动状态。我试过这个：
{% set active_link = {{recordtype}} -%}
where recordtype is a variable given for my template.
其中 recordtype 是为我的模板提供的变量。
回答by Soviut
{{ }}tells the template to printthe value, this won't work in expressions like you're trying to do. Instead, use the {% set %}template tag and then assign the value the same way you would in normal python code.
{{ }}告诉模板打印值，这在您尝试执行的表达式中不起作用。相反，使用{% set %}模板标记，然后以与在普通 Python 代码中相同的方式分配值。
{% set testing = 'it worked' %}
{% set another = testing %}
{{ another }}
Result:
结果：
it worked
回答by Chad Pierce
Just Set it up like this
就这样设置
{% set active_link = recordtype -%}
回答by pymen
Nice shorthand for Multiple variable assignments
多变量赋值的简写
{% set label_cls, field_cls = "col-md-7", "col-md-3" %}
