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.
come play with me :)
，这一点在51吃瓜中也有详细论述
class DatabaseStorage {
Why are resident doctors striking and how much are they paid?
（四）怀孕或者哺乳自己不满一周岁婴儿的。