专注前端素材！
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>素材8网教程(study.sucai8.cn)</title> </head> <body> <video id="video1" controls="controls"> <source src="mov_bbb.mp4" type="video/mp4"> <source src="mov_bbb.ogg" type="video/ogg"> 您的浏览器不支持 HTML5 video 标签。 </video> <script> myVid=document.getElementById("video1"); myVid.ondurationchange=alert("The video duration has changed"); </script> <p>Video courtesy of <a href="http://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p> </body> </html>
运行结果