复制代码代码如下：
功能FullScreen（）{
var el = document.documentElement;
var rfs = el.Requestfullscreen || el.webkitrequestfullscreen || el.mozrequestfullscreen || El.MSREQUESTFULLSCREN;
if（typeof rfs！=“未定义” && rfs）{
rfs.call（el）;
} else if（typeof window.activexobject！=“ undefined”）{
//用于Internet Explorer
var wscript = new ActiveXobject（“ wscript.shell”）;
如果（wscript！= null）{
wscript.sendkeys（“ {f11}”）;
}
}
}