十年前,宠物更多是“养着玩”的存在,消费集中在主粮、零食和基础用品,核心诉求是性价比。今天的城市家庭里,宠物已经开始参与日常作息、占据情感中心,甚至演变为家庭成员的角色。
Instead of tee() with its hidden unbounded buffer, you get explicit multi-consumer primitives. Stream.share() is pull-based: consumers pull from a shared source, and you configure the buffer limits and backpressure policy upfront.
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let value = value in threshold matrix at (x, y)
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