浏览器全屏

var dE = document.documentElement;

//W3C

if(dE.requestFullscreen){

dE.requestFullscreen();

}

//FireFox

else if (dE.mozRequestFullScreen) {

dE.mozRequestFullScreen();

}

//Chrome等

else if (dE.webkitRequestFullScreen) {

dE.webkitRequestFullScreen();

}

//IE11

else if (elem.msRequestFullscreen) {

elem.msRequestFullscreen();

}

退出全屏

if (document.exitFullscreen) {

document.exitFullscreen();

}

else if (document.mozCancelFullScreen) {

document.mozCancelFullScreen();

}

else if (document.webkitCancelFullScreen) {

document.webkitCancelFullScreen();

}

else if (document.msExitFullscreen) {

document.msExitFullscreen();

}

video全屏

//oV为获取video的id命名的元素名

if (oV.requestFullscreen) {

oV.requestFullscreen();

} else if (oV.mozRequestFullScreen) {

oV.mozRequestFullScreen();

} else if (oV.webkitRequestFullScreen) {

oV.webkitRequestFullScreen();

}