HTML5学习笔记（一）：video，audio

            function toggleVideo(){                var oVideo = document.getElementById("myVideo");                if (oVideo) {                    document.body.removeChild(oVideo);                }                else {                    oVideo = document.createElement("video");                    oVideo.src = "medias/1.m4v";//MP4格式                    oVideo.controls = "controls";//鼠标可以控制                    oVideo.autoplay = "true";//是否页面加载后就自动播放                    oVideo.loop = "loop";//是否循环播放                    oVideo.id = "myVideo";                    document.body.appendChild(oVideo);                }            }