Web streams use a locking model to prevent multiple consumers from interleaving reads. When you call getReader(), the stream becomes locked. While locked, nothing else can read from the stream directly, pipe it, or even cancel it – only the code that is actually holding the reader can.
const writer = writable.getWriter();
，详情可参考同城约会
走进山西电力交易大厅，记者看到屏幕上实时显示火电出力量、风光发电量等数据。
brush_texture: “soft bleeding edges”