问题
I have a string "Name(something)" and I am trying to extract the portion of the string within the parentheses!
Iv'e tried the following solutions but don't seem to be getting the results I'm looking for.
n.split('()')
name, something = n.split('()')
回答1:
You can use a simple regex to catch everything between the parenthesis:
>>> import re
>>> s = 'Name(something)'
>>> re.search('\(([^)]+)', s).group(1)
'something'
The regex matches the first "(", then it matches everything that's not a ")":
\(matches the character "(" literally- the capturing group
([^)]+)greedily matches anything that's not a ")"
回答2:
as an improvement on @Maroun Maroun 's answer:
re.findall('\(([^)]+)', s)
it finds all instances of strings in between parentheses
回答3:
You can use split as in your example but this way
val = s.split('(', 1)[1].split(')')[0]
or using regex
回答4:
You can look for ( and ) (need to escape these using backslash in regex) and then match every character using .* (capturing this in a group).
Example:
import re
s = "name(something)"
regex = r'\((.*)\)'
text_inside_paranthesis = re.match(regex, s).group(1)
print(text_inside_paranthesis)
Outputs:
something
Without regex you can do the following:
text_inside_paranthesis = s[s.find('(')+1:s.find(')')]
Outputs:
something
回答5:
You can use re.match:
>>> import re
>>> s = "name(something)"
>>> na, so = re.match(r"(.*)\((.*)\)" ,s).groups()
>>> na, so
('name', 'something')
that matches two (.*) which means anything, where the second is between parentheses \( & \).
来源：https://stackoverflow.com/questions/38999344/extract-string-within-parentheses-python