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pid(A, B, C)可以生成 pid <A.B.C>,如何从 pid 中获取 A、B 和 C?
pid(A, B, C)
<A.B.C>
您可以使用pid_to_list, Erlang doc,但您可能不应该使用,因为这通常是一种不好的做法。
pid_to_list