Page History

<video src="http://video1.grapecity.com.cn/HuoZiGe/Tutorials/v5.0/%E6%95%99%E5%AD%A6%E8%A7%86%E9%A2%91/%E4%B8%8E%E5%BE%AE%E4%BF%A1%E9%9B%86%E6%88%90-%E4%BC%81%E4%B8%9A%E5%BE%AE%E4%BF%A1.mp4"
width="800" height="450" 
controls="controls" onplaying="startplay()">您的浏览器不支持播放此视频。</video>
<script>
var isplayed = 1;
var startplay = function(){
if(isplayed){
ga('send', 'event', 'Play Video', '活字格', '第一章 建立业务数据');
isplayed = 0;
}
return false;
}
</script>