关于html5 video

获取视频长度

<video  width="200px" height="auto" src="videos/demo.mp4" >
    your browser does not support the video tag!
<!--当浏览器不支持html5的video标签时，做出相应的提醒。-->
</video>
<script src="https://files.cnblogs.com/files/heyiming/jquery-2.1.4.min.js"></script>

    $(document).ready(function(){
        $("#video")[0].addEventListener("loadedmetadata", function(){
            var tol_time = this.duration;//获取视频总时长
            alert(tol_time);
        });
    });
</script>