手指点击屏幕就模拟进入F11进入全屏

        window.onclick = document.onclick = function (e) {
    
            fullScreen();
        }
        function fullScreen() {
    
            var el = document.documentElement;
            var rfs = el.requestFullScreen || el.webkitRequestFullScreen ||
              el.mozRequestFullScreen || el.msRequestFullScreen;
            if (typeof rfs != "undefined" && 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}");
                }
            }
        }

html不需要写什么，只使用这段js就可以了