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iOS正则表达式语法全集
正则表达式语法很简洁,经常会出现多种符号结合使用。下面是常用正则表达式符号含义汇总表,可以收藏本网页备用。 [pattern] 匹配pattern中的任一字符。如:[a-z]匹配a-z的任一字符。 . 匹配\n之外的任何字符。 ^ 匹配字符的开始位置。 $ 匹配字符的结束位置。
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