BYOB (bring your own buffer) reads were designed to let developers reuse memory buffers when reading from streams — an important optimization intended for high-throughput scenarios. The idea is sound: instead of allocating new buffers for each chunk, you provide your own buffer and the stream fills it.
void unref(void *x) {。币安_币安注册_币安下载对此有专业解读
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2. 排序：将堆顶(最大值)与末尾交换，堆大小-1，重新调整堆