* 解题思路：先对nums2用单调栈求每个元素的下一个更大值，存入Map缓存；再遍历nums1直接查Map得结果
For implementers, backpressure adds complexity without providing guarantees. The machinery to track queue sizes, compute desiredSize, and invoke pull() at the right times must all be implemented correctly. However, since these signals are advisory, all that work doesn't actually prevent the problems backpressure is supposed to solve.，详情可参考Line官方版本下载
，这一点在Safew下载中也有详细论述
await writer.close();，详情可参考heLLoword翻译官方下载
不知道从什么时候开始，“变工”这个词就从我的记忆里淡了。某种程度是因为时代变迁，一些亲戚举家搬离窑洞，住进山头的新农村基地或县城里的楼房，养牲畜的人家变少，土地经年累月荒废，种地的人没理由再叫不种地的人帮忙。花钱雇外地来的收割机，成了新潮流。
for await (const chunk of stream) { /* never runs */ }