当文件准备开始以HTML播放时执行脚本?
您可以将oncanplay 属性用于以下属性-<audio>,<embed>,<object>和<video>。
示例
<!DOCTYPE HTML>
<html>
<body>
<video width = "300" height = "200" controls oncanplay = "display()">
<source src = "/html5/foo.ogg" type = "video/ogg" />
<source src = "/html5/foo.mp4" type = "video/mp4" />
Your browser does not support the video element.
</video>
<script>
alert("我准备开始。");
</script>
</body>
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