版本：
文件：
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https://cdn.bootcdn.net/ajax/libs/videojs-thumbnails/0.1.1/videojs.thumbnails.css
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https://cdn.bootcdn.net/ajax/libs/videojs-thumbnails/0.1.1/videojs.thumbnails.js
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https://cdn.bootcdn.net/ajax/libs/videojs-thumbnails/0.1.1/videojs.thumbnails.min.css
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https://cdn.bootcdn.net/ajax/libs/videojs-thumbnails/0.1.1/videojs.thumbnails.min.css.map
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https://cdn.bootcdn.net/ajax/libs/videojs-thumbnails/0.1.1/videojs.thumbnails.min.js
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https://cdn.bootcdn.net/ajax/libs/videojs-thumbnails/0.1.1/videojs.thumbnails.min.js.map