// 优化：如果本轮没交换，说明已经有序
Why is HMRC making tax so diabolical?，详情可参考服务器推荐
。im钱包官方下载是该领域的重要参考
Раскрыты подробности о договорных матчах в российском футболе18:01。关于这个话题，Line官方版本下载提供了深入分析
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.