[英]Split() string except for certain character combination
I want something like: 我想要的东西:
"aaaXaaaXaaaXaaaYXaaa".Split('X');
but want it to ignore 'YX'. 但是希望它忽略'YX'。
Of course I can simply loop and correct for it. 当然,我可以简单地循环并纠正它。 But is there a built-in method for that? 但是有没有内置的方法呢?
You can use a regular expression with a negative lookbehind: 您可以使用带有负向lookbehind的正则表达式:
string[] result = Regex.Split(s, "(?<!Y)X");
See it working online: ideone 看到它在线工作: ideone
More information about lookarounds: Lookahead and Lookbehind Zero-Width Assertions 有关外观的更多信息: Lookahead和Lookbehind Zero-Width Assertions
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