获取火狐,谷歌,ie,常见浏览器的方法 function myBrowser(){ var userAgent = navigator.userAgent, rMsie = /(msie\s|trident.*rv:)([\w.]+)/, rFirefox = /(firefox)\/([\w.]+)/, rOpera = /(opera).+version\/([\w.]+)/, rChrome = /(chrome)\/([\w.]+)/, rSafari = /version\/([\w.