<button onclick="addNewTextTrack()" type="button">添加一个新的文本轨道</button>
<video id="video1" controls="controls">
<source src="/example/html5/mov_bbb.mp4" type="video/mp4">
<source src="/example/html5/mov_bbb.ogg" type="video/ogg">
Your browser does not support HTML5 video.
myVid=document.getElementById("video1");
function addNewTextTrack()
text1=myVid.addTextTrack("caption");
text1.addCue(new TextTrackCue("Test text", 01.000, 04.000,"","","",true));