刘年丰：是的，之前行业可能追求的是一个“既能搬箱子、又能收拾桌子、还能叠衣服”的通用模型。
The crux is to introduce a more fancy mechanism only if you can prove it’s required. Otherwise you’re overengineering the solution. For instance, using a mediator pattern or event based communication between modules raises complexity and makes it harder to reason about the code. And despite the popular claim, these techniques don’t remove coupling - they just make it less explicit.
，更多细节参见哔哩哔哩
$ echo $sequence $rechdr $datalen $data | xxd -r -p \
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