前端黑科技

1 . 网页夜间模式

夜间模式

2. 网页全屏

   document.getElementById("a_FullScreen").onclick = function () {
              
                
               
                requestFullScreen(document.documentElement);// 整个网页
            };

            function requestFullScreen(element) {
                // 判断各种浏览器，找到正确的方法
                var requestMethod = element.requestFullScreen || //W3C
                element.webkitRequestFullScreen ||    //Chrome等
                element.mozRequestFullScreen || //FireFox
                element.msRequestFullScreen; //IE11
                if (requestMethod) {
                    requestMethod.call(element);
                }
                else if (typeof window.ActiveXObject !== "undefined") {//for Internet Explorer
                    var wscript = new ActiveXObject("WScript.Shell");
                    if (wscript !== null) {
                        wscript.SendKeys("{F11}");
                    }
                }
            }

            //退出全屏 判断浏览器种类
            function exitFull() {
                // 判断各种浏览器，找到正确的方法
                var exitMethod = document.exitFullscreen || //W3C
                document.mozCancelFullScreen ||    //Chrome等
                document.webkitExitFullscreen || //FireFox
                document.webkitExitFullscreen; //IE11
                if (exitMethod) {
                    exitMethod.call(document);
                }
                else if (typeof window.ActiveXObject !== "undefined") {//for Internet Explorer
                    var wscript = new ActiveXObject("WScript.Shell");
                    if (wscript !== null) {
                        wscript.SendKeys("{F11}");
                    }
                }
            }