春节热度之后，需求是否具备持续性？春节是一个天然的流量放大器。企业年会密集举办，商场促销活动频繁，品牌愿意为“科技感”买单。在这样的时间窗口里，订单量上升是合理现象。
Фото: Alina Smutko / Reuters
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This is fundamentally different from Web streams' pipeThrough(), which starts actively pumping data from the source to the transform as soon as you set up the pipe. Pull semantics mean you control when processing happens, and stopping iteration stops processing.
Adding penalties or preferences for certain roads.