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<!doctype html> <html> <head> <meta charset="utf-8"> <title>无标题文档</title> <script> window.onload = function () { var str = ‘aagsdaafgdgdfgafdghsasdssaa‘; var arr = str.split(‘‘); str = arr.sort().join(‘‘); var value = ‘‘; var index = 0; var re = /(\w)\1+/g; str.replace(re,function ($0,$1) { if(index < $0.length) { index = $0.length; value = $1; } }) alert(‘最多的值：‘+ value + ‘重复次数‘ + index ); } </script> </head> <body> </body> </html>
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原文地址：http://www.cnblogs.com/mayufo/p/4320484.html
