// 从后向前扫描，大于key的元素后移
At its core, a stream is just a sequence of data that arrives over time. You don't have all of it at once. You process it incrementally as it becomes available.
。关于这个话题，夫子提供了深入分析
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Ahead of Unpacked, the ZDNET team spent time with both phones to get a sense of their unique strengths and weaknesses. If you're split between the two, here are the key buying reasons for each, along with our choice if we had to pick one.