Regex 如果后跟斜杠，则正则表达式不匹配
所以我想匹配一个如下所示的字符串：Regex 如果后跟斜杠，则正则表达式不匹配,regex,Regex,所以我想匹配一个如下所示的字符串： apple/banana 因此，我的正则表达式看起来像apple\s*/\\s*banana 但我不想匹配后面是斜杠的情况，比如： apple/banana/或apple/banana/但如果后面没有像apple/banana juice/chocolate这样的斜杠，则仍将匹配 我如何做到这一点？ 感谢您的帖子，您似乎不想匹配以'/'结尾的字符串 /^.+（？ 正则表达式演示。 那么这个正则表达式是如何工作的呢 + 这与除换行符之外的所有内容都匹配 （ 这
apple/bananaapple\s*/\\s*banana但我不想匹配后面是斜杠的情况，比如：
apple/banana/apple/banana/apple/banana juice/chocolate这样的斜杠，则仍将匹配
我如何做到这一点？
感谢您的帖子，您似乎不想匹配以'/'
结尾的字符串
/^.+（？
正则表达式演示。
那么这个正则表达式是如何工作的呢
+
这与除换行符之外的所有内容都匹配
（
这是否定的lookbehind断言，它检查字符串末尾是否没有'/'
字符
^…$
确保从头到尾的匹配
从您的帖子中，似乎不希望匹配以'/'
结尾的字符串
/^.+（？
正则表达式演示。
那么这个正则表达式是如何工作的呢
+
这与除换行符之外的所有内容都匹配
（
这是否定的lookbehind断言，它检查字符串末尾是否没有'/'
字符
^…$
确保从头到尾的匹配
请您尝试以下方法：
^[^\/\n]+(?:\/[^\/\n]+)+$
结果:
apple no match
apple/banana match
apple/banana/ no match
apple/banana / no match
apple/banana/mango match
apple/banana/mango/ no match
apple/banana juice/chocolate match
请尝试以下操作：
^[^\/\n]+(?:\/[^\/\n]+)+$
结果:
apple no match
apple/banana match
apple/banana/ no match
apple/banana / no match
apple/banana/mango match
apple/banana/mango/ no match
apple/banana juice/chocolate match
您可以使用负前瞻来声明前面不带可选空格字符（不包括换行符）的/
\bapple/banana\b(?![^\S\r\n]*/)
解释
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
apple 'apple'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
banana 'banana'
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
(?! look ahead to see if there is not:
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0
or more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
) end of look-ahead
\bapple
匹配前面带有单词边界的apple，使其不匹配，例如菠萝/
匹配/
（正斜杠本身不需要转义，也不用作分隔符）banana\b
Matchbanana
后跟一个不匹配的单词边界，例如banana（？！
消极前瞻，断言正确的东西不正确
[^\S\r\n]*/
匹配0+不包括换行符的whitspace字符，然后匹配/
）
关闭前瞻
您可以使用负前瞻来声明前面不带可选空格字符（不包括换行符）的/
\bapple/banana\b(?![^\S\r\n]*/)
解释
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
apple 'apple'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
banana 'banana'
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
(?! look ahead to see if there is not:
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0
or more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
) end of look-ahead
\bapple
匹配前面带有单词边界的apple，使其不匹配，例如菠萝/
匹配/
（正斜杠本身不需要转义，也不用作分隔符）banana\b
Matchbanana
后跟一个不匹配的单词边界，例如banana（？！
消极前瞻，断言正确的东西不正确
[^\S\r\n]*/
匹配0+不包括换行符的whitspace字符，然后匹配/
）
关闭前瞻
使用
\bapple\s*\/\s*banana\b（？！\s*\/）
看
解释
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
apple 'apple'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
banana 'banana'
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
(?! look ahead to see if there is not:
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0
or more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
) end of look-ahead
使用
\bapple\s*\/\s*banana\b（？！\s*\/）
看
解释
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
apple 'apple'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
--------------------------------------------------------------------------------
banana 'banana'
--------------------------------------------------------------------------------
\b the boundary between a word char (\w) and
something that is not a word char
--------------------------------------------------------------------------------
(?! look ahead to see if there is not:
--------------------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0
or more times (matching the most amount
possible))
--------------------------------------------------------------------------------
\/ '/'
--------------------------------------------------------------------------------
) end of look-ahead
取决于您的正则表达式引擎。请参阅，然后按照此处的指导。关于果汁/苹果/香蕉
？尝试使用@Ilyes苹果/香蕉汁/巧克力/
进行匹配。@Ava操作状态“如果不直接后跟斜杠，仍将匹配”取决于您的正则表达式引擎。请参阅，然后按照此处的指导。关于果汁/苹果/香蕉
？尝试使用@Ilyes苹果/香蕉汁/巧克力/
进行匹配。@Ava操作状态“如果不直接后跟斜杠，仍将匹配”当然++，我完全忘记了斜杠周围的whitspace字符。当然++，我完全忘记了斜杠周围的whitspace字符