4. 从后向前遍历原数组，按count位置放入结果数组
What follows is a proof of concept — not a finished standard, not a production-ready library, not even necessarily a concrete proposal for something new, but a starting point for discussion that demonstrates the problems with Web streams aren't inherent to streaming itself; they're consequences of specific design choices that could be made differently. Whether this exact API is the right answer is less important than whether it sparks a productive conversation about what we actually need from a streaming primitive.
，详情可参考同城约会
The Only Ones / Whitesnake (1978)
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