Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
SelectWhat's included，推荐阅读WPS官方版本下载获取更多信息
await blocking.writer.write(chunk4); // waits until consumer reads。搜狗输入法2026对此有专业解读
"We hope this price reduction will provide some welcome relief for many gas customers."，更多细节参见heLLoword翻译官方下载