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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.
，这一点在51吃瓜中也有详细论述
好文章是改出来的，但首先，它得被写出来。。关于这个话题，heLLoword翻译官方下载提供了深入分析
2 days agoShareSave，推荐阅读搜狗输入法2026获取更多信息
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