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.
2. 不改变已有字段/接口语义，推荐阅读WPS官方版本下载获取更多信息
。safew官方版本下载是该领域的重要参考
Consider some of the more obscure tests that implementations must pass:
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04，更多细节参见heLLoword翻译官方下载