功能很简单，代码也很简洁，这里就不多废话了
function fullScreen() { var el = document.documentElement, rfs = el.requestFullScreen || el.webkitRequestFullScreen || el.mozRequestFullScreen || el.msRequestFullScreen, wscript; if(typeof rfs != "undefined" && rfs) { rfs.call(el); return; } if(typeof window.ActiveXObject != "undefined") { wscript = new ActiveXObject("WScript.Shell"); if(wscript) { wscript.SendKeys("{F11}"); } } } function exitFullScreen() { var el = document, cfs = el.cancelFullScreen || el.webkitCancelFullScreen || el.mozCancelFullScreen || el.exitFullScreen, wscript; if (typeof cfs != "undefined" && cfs) { cfs.call(el); return; } if (typeof window.ActiveXObject != "undefined") { wscript = new ActiveXObject("WScript.Shell"); if (wscript != null) { wscript.SendKeys("{F11}"); } } }