摘要： js判断浏览器<scripttype="text/javascript">varSys={};varua=navigator.userAgent.toLowerCase();vars;(s=ua.match(/msie([\d.]+)/))?Sys.ie=s[1]:(s=ua.match(/firefox\/([\d.]+)/))?Sys.firefox=s[1]:(s=ua.match(rome\/([\d.]+)/))?Sys.chrome=s[1]:(s=ua.match(/opera.([\d.]+)/))?Sys.opera=s[1]:(s=ua.ma 阅读全文