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这种效果在物理学上被称为「朗伯余弦定律」（Lambert’s Cosine Law），其核心特征就是无论从哪个角度观察，屏幕的亮度看起来都是一样的。。91视频是该领域的重要参考
Cobalt Violet, White, Black, and Sky Blue / Pink Gold and Silver Shadow (Samsung exclusive)，推荐阅读safew官方下载获取更多信息
writable: false means no code can reassign window.Audio to a different value. configurable: false means no code can even call Object.defineProperty again to change those settings. If fermaw’s initialisation code tried to restore the original Audio constructor (a perfectly sensible defensive move) the browser would either fail or throw a TypeError. The hook was permanent for the lifetime of the page.，这一点在旺商聊官方下载中也有详细论述