但在中国，旅游的核心是“打卡”。
The chained transform result is particularly striking: pull-through semantics eliminate the intermediate buffering that plagues Web streams pipelines. Instead of each TransformStream eagerly filling its internal buffers, data flows on-demand from consumer to source.
，更多细节参见Line官方版本下载
Bibliographic Explorer Toggle。下载安装 谷歌浏览器 开启极速安全的 上网之旅。是该领域的重要参考
Stream.pull() creates a lazy pipeline. The compress and encrypt transforms don't run until you start iterating output. Each iteration pulls data through the pipeline on demand.