我要在此字符串中匹配“ windowsXP”：
windowsXP|7|8
或者
windowsXP 7 8
我写了一个模式来匹配它：
([^0-9|])+[0-9\.]+.*
为什么不匹配？是| 麻烦在支架上。我尝试将其转义，但还是没有用。
([^0-9\|])+[0-9\.]+.*
看：
([^0-9|])+ 查找与数字和管道不同的字符[0-9\.]+ 尝试匹配数字或句点，但是表达式无法捕获到管道。使用
^([^|\s]+)[|\s](\d+)[|\s](\d+)
见证明
解释
--------------------------------------------------------------------------------
^ the beginning of the string
--------------------------------------------------------------------------------
( group and capture to \1:
--------------------------------------------------------------------------------
[^|\s]+ any character except: '|', whitespace (1 or more
times (matching the most amount
possible))
--------------------------------------------------------------------------------
) end of \1
--------------------------------------------------------------------------------
[|\s] any character of: '|', whitespace (\n, \r,
\t, \f, and " ")
--------------------------------------------------------------------------------
( group and capture to \2:
--------------------------------------------------------------------------------
\d+ digits (0-9) (1 or more times (matching
the most amount possible))
--------------------------------------------------------------------------------
) end of \2
--------------------------------------------------------------------------------
[|\s] any character of: '|', whitespace (\n, \r,
\t, \f, and " ")
--------------------------------------------------------------------------------
( group and capture to \3:
--------------------------------------------------------------------------------
\d+ digits (0-9) (1 or more times (matching
the most amount possible))
--------------------------------------------------------------------------------
) end of \3
import re
regex = r"^([^|\s]+)[|\s](\d+)[|\s](\d+)"
test_str = "windowsXP|7|8"
print(re.findall(regex, test_str))
结果：[('windowsXP', '7', '8')]
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我来说两句