Question

我有这个字符串：

3 V1388832414 N1 G96ca813824e9c752da0d0000ffe8688c

我的注册表是：

\d.\s.V13\d+\s.N\d.\s.\w*

但它不匹配。我试着说：一个数字第一个和一个白色空间和字符V13和任何一个数字有一个或多个长度和一个白色空间和字符N和一个数字和一个白色空格和任何长度的任何字符。

Answer 1

为什么你有这么多不必要的.。这应该足够了：

\d\sV13\d+\sN\d\s\w*

我不完全确定为什么你的正则表达式中有.。 .用于匹配任何单个字符，因此您的正则表达式无法正常工作

WORKING DEMO

Answer 2

请改为尝试：

\d\s*V13\d+\s*N\d\s*\w*

http://regex101.com/r/fE1dC3

\d match a digit [0-9]
\s* match any white space character [\r\n\t\f ]
    Quantifier: Between zero and unlimited times, as many times as possible, giving back as needed [greedy]
V13 matches the characters V13 literally (case sensitive)
\d+ match a digit [0-9]
    Quantifier: Between one and unlimited times, as many times as possible, giving back as needed [greedy]
\s* match any white space character [\r\n\t\f ]
    Quantifier: Between zero and unlimited times, as many times as possible, giving back as needed [greedy]
N matches the character N literally (case sensitive)
\d match a digit [0-9]
\s* match any white space character [\r\n\t\f ]
    Quantifier: Between zero and unlimited times, as many times as possible, giving back as needed [greedy]
\w* match any word character [a-zA-Z0-9_]
    Quantifier: Between zero and unlimited times, as many times as possible, giving back as needed [greedy]

我的正则表达式有什么问题（\ d。\ s.V13 \ d + \ s.N \ d。\ s。\ w *）？

2 个答案:

WORKING DEMO