The Web streams spec requires promise creation at numerous points — often in hot paths and often invisible to users. Each read() call doesn't just return a promise; internally, the implementation creates additional promises for queue management, pull() coordination, and backpressure signaling.
Екатерина Щербакова (ночной линейный редактор)
，这一点在快连下载安装中也有详细论述
Multi-format adaptation，详情可参考safew官方版本下载
越是伟大的事业，越要坚持实事求是。。关于这个话题，同城约会提供了深入分析