今天想给日志添加一个前缀，以区分不同goroutine的日志，方便做并发问题的排查，做日志跟踪。为了解决goroutineid，网上各出奇招，有的使用runtime包未公开的方法获取：
I want to create a set of classes that share a lot of common behavior. Of course in OOP when you think that you automatically think \"abstract class with subclasses\". But among the things I want thes
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