Python - 基于未知文本和已知字符获取子字符串（解析 xml 的结果）

你可以试试：

import re

s = " <ID>0b10-bd-59-ac-bac</ID> "

whole = re.findall("<.*?>.*</.*?>", s)[0]
inner = whole[whole.find(">") + 1: whole.rfind("<")]
outer = whole[whole.find("<") + 1: whole.find(">")]

print(whole)
print(inner)
print(outer)

输出：

<ID>0b10-bd-59-ac-bac</ID>
0b10-bd-59-ac-bac
ID

其中表达式<.*?>.*</.*?>是模式：

<{anything but a <}>{anything}</{anything but a >}>

要解决您在评论中提供的其他模式，您可以尝试：

import re

strings = ['<ID>0b10-bd-59-ac-bac</ID>', '<Type ref="acc-63-5c-bl-5b"/>']

for s in strings:
    outer = re.findall("(?<=<)[\w ]+", s)[0]
    for inner in re.findall("[\w-]+", s):
        if '-' in inner:
            break

    print("Outer", outer)
    print("Inner", inner)

输出：

Outer ID
Inner 0b10-bd-59-ac-bac
Outer Type ref
Inner acc-63-5c-bl-5b