Python 如何在 Jinja2 中将字符串转换为大写/小写？
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How to convert string to uppercase / lowercase in Jinja2?
提问by Xar
I am trying to convert to upper case a string in a Jinja template I am working on.
我正在尝试将我正在处理的 Jinja 模板中的字符串转换为大写。
In the template documentation, I read:
在模板文档中，我读到：
upper(s)
Convert a value to uppercase.
So I wrote this code:
所以我写了这段代码：
{% if student.department == "Academy" %}
Academy
{% elif upper(student.department) != "MATHS DEPARTMENT" %}
Maths department
{% endif %}
But I am getting this error:
但我收到此错误：
UndefinedError: 'upper' is undefined
So, how do you convert a string to uppercase in Jinja2?
那么，如何在 Jinja2 中将字符串转换为大写？
采纳答案by Martijn Pieters
Filters are used with the |filtersyntax:
过滤器与以下|filter语法一起使用：
{% elif student.department|upper != "MATHS DEPARTMENT" %}
Maths department
{% endif %}
or you can use the str.upper()method:
或者您可以使用以下str.upper()方法：
{% elif student.department.upper() != "MATHS DEPARTMENT" %}
Maths department
{% endif %}
Jinja syntax is Python-like, not actual Python. :-)
Jinja 语法类似于Python，而不是真正的 Python。:-)
回答by saudi_Dev
And you can use: Filter like this
你可以使用：像这样过滤
{% filter upper %}
UPPERCASE
{% endfilter %}
回答by Jamil Noyda
for the capitalize
为大写
{{ 'helLo WOrlD'|capitalize }}
output
输出
Hello world
for the uppercase
对于大写
{{ 'helLo WOrlD'|upper }}
output
输出
HELLO WORLD
