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<html>
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<head>
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<meta charset="utf-8">
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<title>蜜蜂教程(mifengjc.com)</title>
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</head>
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<body>
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<video controls onloadedmetadata="myFunction()">
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<source src="/examples/mov_bbb.mp4" type="video/mp4">
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<source src="/examples/mov_bbb.ogg" type="video/ogg">
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您的浏览器不支持 HTML5 video。
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</video>
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<script>
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function myFunction() {
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alert("视频元数据已加载");
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}
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</script>
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</body>
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</html>