实行扶持对象、项目安排、资金使用、措施到户、因村派人、脱贫成效“六个精准”；实行发展生产、易地搬迁、生态补偿、发展教育、社会保障兜底“五个一批”。
Every fragment means promises created for read() calls, promises for backpressure coordination, intermediate buffer allocations, and { value, done } result objects — most of which become garbage almost immediately.
。关于这个话题，Line官方版本下载提供了深入分析
The design of Web streams predates async iteration in JavaScript. The for await...of syntax didn't land until ES2018, two years after the Streams Standard was initially finalized. This timing meant the API couldn't initially leverage what would eventually become the idiomatic way to consume asynchronous sequences in JavaScript. Instead, the spec introduced its own reader/writer acquisition model, and that decision rippled through every aspect of the API.，这一点在旺商聊官方下载中也有详细论述
def get(self, url: str) - str:，详情可参考雷电模拟器官方版本下载