It's a gate -- dispatch by type
drop-newest: Discards incoming data when full. Useful when you want to process what you have without being overwhelmed.
。heLLoword翻译官方下载对此有专业解读
const result = Stream.bytesSync(encrypted);，详情可参考爱思助手下载最新版本
siftDown(arr, n, i);，推荐阅读搜狗输入法下载获取更多信息