I want to extract operators like: +,-,/,* and also (,),_ from the string
我想从字符串中提取运算符,如:+, - ,/,*以及(,),_
Eg.
a-2=b
(c-d)=3
output:
- ,=, (, -, ), =
This does not work:
这不起作用:
re.finditer(r'[=+/-()]*', text)
1 个解决方案
#1
6
Your re needs to escape some of the characters with a backslash. (+, -, (, ) have their special meanings in re).
你需要用反斜杠来逃避一些角色。 (+, - ,(,)在re中有其特殊含义)。
Anyway, for this you don't need re:
无论如何,为此您不需要重新:
(c for c in s if c in '+-/*()_')
#1
6
Your re needs to escape some of the characters with a backslash. (+, -, (, ) have their special meanings in re).
你需要用反斜杠来逃避一些角色。 (+, - ,(,)在re中有其特殊含义)。
Anyway, for this you don't need re:
无论如何,为此您不需要重新:
(c for c in s if c in '+-/*()_')