모듈과 컴포넌트

https://webisfree.com/2015-12-02/%EC%9B%B9%EC%97%90%EC%84%9C-%EB%A7%90%ED%95%98%EB%8A%94-%EC%BB%B4%ED%8F%AC%EB%84%8C%ED%8A%B8%EB%9E%80-%EB%AC%B4%EC%97%87%EC%9D%B8%EA%B0%80

https://webisfree.com/2017-07-05/%EB%AA%A8%EB%93%88%EA%B3%BC-%EC%BB%B4%ED%8F%AC%EB%84%8C%ED%8A%B8%EC%9D%98-%EC%9D%B4%ED%95%B4