摘要：
IE各版本浏览器IE5.5到IE8基本没有区别，除了HTTP_USER_AGENT可以判断IE版本，IE9作出了一些改变 IE5.5-IE8[HTTP_ACCEPT] image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/mswo. 阅读全文
