The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.
输入：nums = [2,6,4,8,10,9,15]，详情可参考搜狗输入法2026
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8年攻坚、5年过渡，中国以成功实践进一步向世界表明：本着滴水穿石、一张蓝图绘到底的韧性、恒心和奋斗精神，贫困不仅是可以战胜的，更是可以阻断、不再复发的。
while (bucket[i] 0) {，这一点在一键获取谷歌浏览器下载中也有详细论述