咖啡拿铁



咖啡拿铁

首先国庆节要到了，先提前祝大家节日快乐，当然在放假的时候适当的学一下知识也是必要的。

1.背景

在我们的业务需求中通常有需要一些唯一的ID，来记录我们某个数据的标识:

  • 某个用户的ID

  • 某个订单的单号

  • 某个信息的ID

通常我们会调研各种各样的生成策略，根据不同的业务，采取最合适的策略，下面我会讨论一下各种策略/算法，以及他们的一些优劣点。


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