수업시간에 배운 디자인 패턴에 대해 공부하고, 추가적인 내용도 정리해 보았다.참고한 자료는 아래와 같다.https://refactoring.guru/design-patterns/cpp Design Patterns in C++Turns a request into a stand-alone object that contains all information about the request. This transformation lets you pass requests as a method arguments, delay or queue a request's execution, and support undoable operations.refactoring.guruhttps://www.hanbit.co.kr/chann..