JavaScript代码:
function toggleFullScreen() { ?????if (!document.fullscreenElement && // alternative standard method ?????????!document.mozFullScreenElement && !document.webkitFullscreenElement) {// current working methods ?????????if (document.documentElement.requestFullscreen) { ?????????????document.documentElement.requestFullscreen(); ?????????} else if (document.documentElement.mozRequestFullScreen) { ?????????????document.documentElement.mozRequestFullScreen(); ?????????} else if (document.documentElement.webkitRequestFullscreen) { ?????????????document.documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT); ?????????} ?????} else { ?????????if (document.cancelFullScreen) { ?????????????document.cancelFullScreen(); ?????????} else if (document.mozCancelFullScreen) { ?????????????document.mozCancelFullScreen(); ?????????} else if (document.webkitCancelFullScreen) { ?????????????document.webkitCancelFullScreen(); ?????????} ?????} ?} ?html代码
<html ondblclick=‘toggleFullScreen();‘>html全屏显示
原文地址：https://www.cnblogs.com/userzf/p/9182268.html