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.
Фото: Алексей Майшев / РИА Новости，更多细节参见heLLoword翻译官方下载
63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54。WPS下载最新地址是该领域的重要参考
- 子节点i的父节点: (i-1)/2