我有一个字符串:
phy = '(s1:0.6507212936,((s2:0.4186036213,s3:0.4186036213):0.1428084058,((s4:0.1429514535,s5:0.1429514535):0.1695879844,s6:0.3125394379):0.2488725892):0.08930926654);'
如何仅提取括号之间的子字符串,并且每个子字符串中不包含任何括号?因此,在我的示例中,我需要两个输出:“ s2:0.4186036213,s3:0.4186036213”和“ s4:0.1429514535,s5:0.1429514535”。
答案 0 :(得分:1)
您可以使用regular rexpressions:
import re
phy = '(s1:0.6507212936,((s2:0.4186036213,s3:0.4186036213):0.1428084058,((s4:0.1429514535,s5:0.1429514535):0.1695879844,s6:0.3125394379):0.2488725892):0.08930926654);'
re.findall(r'\(([^\(\)]*)\)', phy)
# ['s2:0.4186036213,s3:0.4186036213', 's4:0.1429514535,s5:0.1429514535']
这将捕获所有用开括号括住的非括号括起来的内容。但是,它不能验证正确的嵌套级别。
答案 1 :(得分:1)
尝试一下:
from collections import defaultdict
bracket_dict = defaultdict(int)
bracket_dict_ ={
'(':')',
'{':'}',
'[':']'
}
bracket_dict.update(bracket_dict_)
bracket_list = bracket_dict.keys()
phy = '(s1:0.6507212936,((s2:0.4186036213,s3:0.4186036213):0.1428084058,((s4:0.1429514535,s5:0.1429514535):0.1695879844,s6:0.3125394379):0.2488725892):0.08930926654);'
inner_items=[]
brackets = []
start_index = None
for i in range(len(phy)):
if phy[i] in bracket_list:
start_index = i
brackets.append(phy[i])
if brackets:
if phy[i] == bracket_dict[brackets[-1]]:
inner_items.append(phy[start_index+1 : i])
brackets.append(phy[i])
print(inner_items)
#['s2:0.4186036213,s3:0.4186036213', 's4:0.1429514535,s5:0.1429514535']
答案 2 :(得分:1)
使用正则表达式:
import re
reg = re.compile(r'[(]([^()]+)[)]')
phy = '(s1:0.6507212936,((s2:0.4186036213,s3:0.4186036213):0.1428084058,((s4:0.1429514535,s5:0.1429514535):0.1695879844,s6:0.3125394379):0.2488725892):0.08930926654)'
print(reg.findall(phy))
输出:
C:\Users\Desktop>py x.py
['s2:0.4186036213,s3:0.4186036213', 's4:0.1429514535,s5:0.1429514535']