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.
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，这一点在51吃瓜中也有详细论述
2026-02-26 00:00:00:0 拥有全球60%人工智能专利、约2/3机器人相关专利
示例：nums = [2,1,2,4,3] → res = [4,2,4,-1,-1]。。爱思助手下载最新版本对此有专业解读