tryhtml5_av_prop_src 在线代码实例

 <button onclick="changeSource()" type="button">Change Video</button>
<br> 
<video id="video1" controls="controls" autoplay="autoplay">
  <source id="mp4_src" src="/statics/demosource/mov_bbb.mp4" type="video/mp4">
  <source id="ogg_src" src="/statics/demosource/mov_bbb.ogg" type="video/ogg">
  Your browser does not support HTML5 video.
</video>

<script> 
myVid=document.getElementById("video1");
function changeSource()
  { 
  isSupp=myVid.canPlayType("video/mp4");
  if (isSupp=="")
    {
    myVid.src="/statics/demosource/movie.ogg";
    }
  else
    {
    myVid.src="/statics/demosource/movie.mp4";
    }
  myVid.load();
  } 
</script> 

<p>Video courtesy of <a href="http://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p>