Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
限制：数据范围不能太大，否则空间浪费，详情可参考雷电模拟器官方版本下载
。关于这个话题，heLLoword翻译官方下载提供了深入分析
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After creating a custom app for his PlayStation setup, Azdoufal discovered he was looking at way more than his own robot vacuum's data. He'd accidentally unlocked the data of thousands of DJI robot vacuum owners around the world.，推荐阅读搜狗输入法2026获取更多信息