<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head> <body> <p>我的浏览器可以播放 MP4 视频吗?<span> <button onclick="supportType(event,'video/mp4','avc1.42E01E, mp4a.40.2')" type="button">测试</button> </span></p> <p>我的浏览器可以播放 OGG 视频吗?<span> <button onclick="supportType(event,'video/ogg','theora, vorbis')" type="button">测试</button> </span></p> <script> function supportType(e,vidType,codType) { myVid=document.createElement('video'); isSupp=myVid.canPlayType(vidType+';codecs="'+codType+'"'); if (isSupp=="") { isSupp="No"; } e.target.parentNode.innerHTML="Answer: " + isSupp; } </script> </body> </html>