2. 排序：将堆顶(最大值)与末尾交换，堆大小-1，重新调整堆
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For implementers, the locking model adds a fair amount of non-trivial internal bookkeeping. Every operation must check lock state, readers must be tracked, and the interplay between locks, cancellation, and error states creates a matrix of edge cases that must all be handled correctly.，这一点在91视频中也有详细论述
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In Burgi's view the situation is likely temporary – but that does not mean it will be short-lived.，更多细节参见safew官方版本下载