JS实现全屏和退出全屏

这里实现的全屏和退出全屏是模仿按下F11。

1.全屏

function fullScreen(){
    var el = document.documentElement;
    var rfs = el.requestFullScreen || el.webkitRequestFullScreen || el.mozRequestFullScreen || el.msRequestFullScreen;

    //typeof rfs != "undefined" && rfs
    if (rfs) {
        rfs.call(el);
    }
    else if (typeof window.ActiveXObject !== "undefined") {
        //for IE，这里其实就是模拟了按下键盘的F11，使浏览器全屏
        var wscript = new ActiveXObject("WScript.Shell");
        if (wscript != null) {
            wscript.SendKeys("{F11}");
        }
    }
}

2.退出全屏

function exitScreen(){
    var el = document;
    var cfs = el.cancelFullScreen || el.webkitCancelFullScreen || el.mozCancelFullScreen || el.exitFullScreen;

    //typeof cfs != "undefined" && cfs
    if (cfs) {
        cfs.call(el);
    }
    else if (typeof window.ActiveXObject !== "undefined") {
        //for IE，这里和fullScreen相同，模拟按下F11键退出全屏
        var wscript = new ActiveXObject("WScript.Shell");
        if (wscript != null) {
            wscript.SendKeys("{F11}");
        }
    }
}

 3.当然了为了实现全屏效果一般还得添加一个类

.full{
    position: fixed!important;
    z-index: 10000;
     100%!important;
    height: 100%!important;
    top: 0;
    left: 0;
}