当页面中包含自动播放视频的flash播放器时，flash的流媒体播放会一直不停的下载视频(哪怕你点击了播放暂停/停止也一样在不停下载)，这样会影响到页面其它元素的加载。
最简单的优化办法就是让Flash一开始不要播放：当然，你可以修改fla源文件，让视频播放一开始就处于暂停，直到用户点击了播放按钮。但问题是，如果您嵌入的是没有源文件的flash动画，这种路子就走不通了。
思路：
可以先在放置flash的地方，放一张小图片，点击图片后再把图片元素换成对应的object标签。
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