Implementers shouldn't need to jump through these hoops. When you find yourself needing to relax or bypass spec semantics just to achieve reasonable performance, that's a sign something is wrong with the spec itself. A well-designed streaming API should be efficient by default, not require each runtime to invent its own escape hatches.
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Wastewater treatment tanks and other infrastructure emit larger amounts of greenhouse gases than reported.，详情可参考爱思助手下载最新版本
// i表示当前要确定第i小的元素位置，这一点在91视频中也有详细论述