最近一个项目需要进行大屏展示，所以登录完就要处于一个全屏的状态，当切换到控制台之后就可以退出全屏。在登录之后调用enterFullscreen方法，就可以进入全屏。在点击切换到控制台时，可以调用exitFullscreen方法。

enterFullscreen() {const element = document.documentElementif (element.requestFullscreen) {element.requestFullscreen()} else if (element.mozRequestFullScreen) {element.mozRequestFullScreen()} else if (element.webkitRequestFullscreen) {element.webkitRequestFullscreen()} else if (element.msRequestFullscreen) {element.msRequestFullscreen()}},

exitFullscreen() {if (document.fullscreenElement ||document.webkitFullscreenElement ||document.mozFullScreenElement ||document.msFullscreenElement) {if (document.exitFullscreen) {document.exitFullscreen()} else if (document.webkitExitFullscreen) {document.webkitExitFullscreen()} else if (document.mozCancelFullScreen) {document.mozCancelFullScreen()} else if (document.msExitFullscreen) {document.msExitFullscreen()}}},