按長度切割字串
===

import re
string = '123456789abcdefg'
re.findall(r'.{3}', string)

['123', '456', '789', 'abc', 'def']

## Ref.
[python 按照固定长度分割字符串的方法小结]([https://](https://www.nhooo.com/note/qagi8h.html))

###### tags: `語法相關`