完整介绍流逝介绍思想，在5G时代是大多数程序员必备的技能。本身不限于程序员，包括设计人员和想熟悉流计算的爱好者。

Streaming data is a big deal in big data these days. As more and more businesses seek to tame the massive unbounded data sets that pervade our world, streaming systems have finally reached a level of maturity sufficient for mainstream adoption. With