다형성 (Polymorphism)
다형성 (Polymorphism)
- Print( ) 함수
- 세 종류의 파일을 출력하는 함수
- Text files
- Word processor files
- Graphics files
- Each kind of file has a unique way of printing its content correctly.
- All these file objects understand the message print ( ), and will execute a totally different method to print their contents.
Notes: