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Check the 3 first characters of a string

原文 2015-04-23 19:17:25 3 1 javascript/ regex

鉴于'052 ....'，我需要检查前两个字符是'05'而第三个是0到9之间但不是1.我试过：

var regex = /^[05]+[0,2-9]/;

1 answers

差不多了：

var regex = /^05[02-9]/;

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