“买买买”之后，盛屯如何走？资本扩张，一面是资产版图的急剧膨胀，另一面则是债务压力与经营风险的如影随形。
The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.
，更多细节参见heLLoword翻译官方下载
Sebastian Crane
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