退出全屏
var exitFullScreen = function() {var e = document;e.exitFullscreen ? e.exitFullscreen() : e.mozCancelFullScreen ? e.mozCancelFullScreen() : e.webkitCancelFullScreen && e.webkitCancelFullScreen()}
全屏显示
var openFullScreen = function() {var e = document.documentElement;if (e.requestFullscreen)e.requestFullscreen();else if (e.mozRequestFullScreen)e.mozRequestFullScreen();else if (e.webkitRequestFullScreen)e.webkitRequestFullScreen();else if ("undefined" != typeof window.ActiveXObject) {var t = new ActiveXObject("WScript.Shell");t && t.SendKeys("{F11}")}}
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