如何将Unicode符号添加到提交按钮
问题描述：
我想在SubmitField的文本中添加一个unicode.
I would like to add a unicode to the text of a SubmitField.
例如，代码
submit = SubmitField('✉ Send')
不起作用.我该如何更改以显示此信封unicode? p>
does not work. How can I change that to show this envelope unicode?
答
只需在\uhhhh转义序列中使用unicode代码点，就无需使用HTML转义:
Just use the unicode codepoint in a \uhhhh escape sequence, there is no need to use HTML escapes:
submit = SubmitField('\u2709 Send')
甚至是代码点本身:
submit = SubmitField('✉ Send')
产生的字符串值完全相同.
The string value produced is exactly the same.
用引号引起来的标签可以确保正确处理HTML，因此标签值中的所有&字符都被编码为&，从而破坏了✉引用.
The label is quoted to ensure proper handling in HTML, so any & characters in the label value are encoded to &, breaking your ✉ reference.