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在js其他地方都很简单的/i忽略大小写...
在java里面我找了半天没发现.. 最后去sun的forum才找到答案
如匹配 AbC不区分大小写是 (?i)abc
其中(?i)的位置最好放在正则的最开始的地方.
文档如下, 摘自Pettern类的javadoc
Special constructs (non-capturing)
| (?: X ) | X, as a non-capturing group |
| (?idmsux-idmsux) | Nothing, but turns match flags on - off |
| (?idmsux-idmsux: X ) | X, as a non-capturing group with the given flags on - off |
| (?= X ) | X, via zero-width positive lookahead |
| (?! X ) | X, via zero-width negative lookahead |
| (?<= X ) | X, via zero-width positive lookbehind |
| (?<! X ) | X, via zero-width negative lookbehind |
| (?> X ) | X, as an independent, non-capturing group |
