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在js其他地方都很簡(jiǎn)單的/i忽略大小寫(xiě)...
在java里面我找了半天沒(méi)發(fā)現(xiàn).. 最后去sun的forum才找到答案
如匹配 AbC不區(qū)分大小寫(xiě)是 (?i)abc
其中(?i)的位置任意.
文檔如下, 摘自Pettern類(lèi)的javadoc
Special constructs (non-capturing)
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(?:
X
)
|
X, as a non-capturing group |
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(?idmsux-idmsux)
|
Nothing, but turns match flags on - off |
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(?idmsux-idmsux:
X
) |
X, as a non-capturing group with the given flags on - off |
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(?=
X
)
|
X, via zero-width positive lookahead |
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(?!
X
)
|
X, via zero-width negative lookahead |
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(?<=
X
)
|
X, via zero-width positive lookbehind |
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(?<!
X
)
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X, via zero-width negative lookbehind |
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(?>
X
)
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X, as an independent, non-capturing group |