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https://42jerrykim.github.io/tags/%EB%B0%98%EC%9D%91%ED%98%95-%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D/ tags %EB%B0%98%EC%9D%91%ED%98%95 %ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D
![[Design Pattern] Observer - 옵저버 패턴](/post/designpattern/20_observer/tmp_wordcloud_hu_c7aa2930b5852be6.png)