but it's used for deciding which keywords you plan on using for future content
Stream.pull() creates a lazy pipeline. The compress and encrypt transforms don't run until you start iterating output. Each iteration pulls data through the pipeline on demand.
。搜狗输入法下载对此有专业解读
// not critical but safer when bytesToWrite != view.byteLength，详情可参考雷电模拟器官方版本下载
with the machine via punched cards and teletype, IBM and other manufacturers