js 如何做全屏的界面

1、新建html页面。

2、新建两个按钮。全屏与退出全屏

3、编写按钮点击事件、方法。 //全屏 function fullScreen() { var element = document.documentElement; if (element.requestFullscreen) { element.requestFullscreen(); } else if (element.msRequestFullscreen) { element.msRequestFullscreen(); } else if (element.mozRequestFullScreen) { element.mozRequestFullScreen(); } else if (element.webkitRequestFullscreen) { element.webkitRequestFullscreen(); } } //退出全屏 function exitFullscreen() { if (document.exitFullscreen) { document.exitFullscreen(); } else if (document.msExitFullscreen) { document.msExitFullscreen(); } else if (document.mozCancelFullScreen) { document.mozCancelFullScreen(); } else if (document.webkitExitFullscreen) { document.webkitExitFullscreen(); } }