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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. class Book {
  5. 	string title;
  6. 	int price, pages;
  7. public:
  8. 	Book(string title = "", int price = 0, int pages = 0) {
  9. 		this->title = title; this->price = price; this->pages = pages;
  10. 	}
  11. 	void show() {
  12. 		cout << title << ' ' << price << "원 " << pages << " 페이지" << endl;
  13. 	}
  14. 	string getTitle() { return title; }
  15.  
  16.  
  17. 	Book& operator += (const int n) {		
  18. 		this->price += n;
  19. 		return *this;
  20. 	}
  21.  
  22. 	Book& operator -= (const int n) {
  23. 		this->price -= 500;
  24. 		return *this;
  25. 	}
  26. };
  27.  
  28.  
  29. int main() {
  30. 	Book a("C++ Primer", 28000, 300), b("Advanced C++", 33000, 500);
  31. 	a += 500; // 책 a의 가격 500원 증가	
  32. 	b -= 500; // 책 b의 가격 500원 감소
  33.  
  34. 	a.show();
  35. 	b.show();
  36. }
Success #stdin #stdout 0s 4372KB
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C++ Primer 28500원 300 페이지
Advanced C++ 32500원 500 페이지
https://ideone.com/93W4Mu
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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