I know these won't do it and also why, but how do you match it?
我知道这些不会这样做，也是为什么，但你如何匹配呢？
/^/
/(^)/
/[^]/
2 个解决方案
#1
26
Escape it with a backslash:
用反斜杠逃脱它：
/\^/
This will make it be interpreted as a literal ^ character.
这将使其被解释为文字^字符。
#2
4
I think this works (I've tested this in java):
我认为这有效（我在java中测试过这个）：
\\^
'\' is used as an escape character, so you first escape '^', then you escape '\' itself
'\'用作转义字符，因此首先转义'^'，然后转义'\'本身
you can find more information here: http://www.regular-expressions.info/characters.html
你可以在这里找到更多信息：http：//www.regular-expressions.info/characters.html
#1
26
Escape it with a backslash:
用反斜杠逃脱它：
/\^/
This will make it be interpreted as a literal ^ character.
这将使其被解释为文字^字符。
#2
4
I think this works (I've tested this in java):
我认为这有效（我在java中测试过这个）：
\\^
'\' is used as an escape character, so you first escape '^', then you escape '\' itself
'\'用作转义字符，因此首先转义'^'，然后转义'\'本身
you can find more information here: http://www.regular-expressions.info/characters.html
你可以在这里找到更多信息：http：//www.regular-expressions.info/characters.html