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How to match increasing numbers with regular expression

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2017-03-30 11:04:005627browse

正则表达式如何匹配递增数字 :

正则表达式如何匹配6位数为这种数字格式?
123123
234234
345345

1、

/^(123|234|345|456|678|789)\1$/g

2、

var aabbcc = /^(?:(\d)\1)+$/;
var ababab = /(\d{2})\1+$/;
var abcabc = /^(\d{3})\1+$/;
var aaabbb = /^(?:(\d)\1\1)+$/;

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