In the 2012 film adaptation of the Dr Seuss book The Lorax, a fable about capitalist greed, air is a commodity.
Sketched out concepts, using Excalidraw[2]，这一点在旺商聊官方下载中也有详细论述
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Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.