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  1. #include <iostream>
  2. using namespace std;
  3. //This is for Aero Learning...
  4. //blog.csdn.net/yuangc
  5.  
  6. class Phone
  7. {
  8. 	public :
  9. 	virtual void show() = 0;
  10. };
  11.  
  12. class iPhone:public Phone{
  13. 	public :
  14. 	virtual void show()
  15. 	{
  16. 		cout<<"iPhone"<<endl;
  17. 	}
  18. };
  19. class DecoratorPone:public Phone
  20. {
  21. 	public :
  22. 	 void setBasePhone(Phone* phone)
  23. 	{
  24. 		mPhone =  phone;
  25. 	}
  26.  
  27. 	virtual void show()
  28. 	{
  29. 		mPhone->show();
  30. 	}
  31.  
  32. 	Phone* mPhone;
  33. };
  34. class PhoneSuit:public DecoratorPone
  35. {
  36. public:
  37. 	PhoneSuit(Phone* phone)
  38. 	{
  39. 		setBasePhone(phone);
  40. 	}
  41. 	virtual void show()
  42. 	{
  43. 		cout<<"带上套套的";
  44. 		mPhone->show();
  45. 	}
  46.  
  47. };
  48.  
  49. class PhoneScreen:public DecoratorPone
  50. {
  51. public:
  52. 	PhoneScreen(Phone* phone)
  53. 	{
  54. 		setBasePhone(phone);
  55. 	}
  56. 	virtual void show()
  57. 	{
  58. 		cout<<"贴上钢化膜的";
  59. 		mPhone->show();
  60. 	}
  61.  
  62. };
  63. int main() {
  64. 	Phone* myPhone = new iPhone();
  65. 	cout<<"这是一个";myPhone->show();
  66.  
  67. 	myPhone = new PhoneSuit(myPhone);
  68. 	cout<<"这是一个";myPhone->show();
  69.  
  70. 	myPhone = new PhoneScreen(myPhone);
  71. 	cout<<"这是一个";myPhone->show();
  72.  
  73. 	return 0;
  74. }
Success #stdin #stdout 0s 4532KB
comments (?)
stdin
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Standard input is empty
stdout
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这是一个iPhone
这是一个带上套套的iPhone
这是一个贴上钢化膜的带上套套的iPhone
https://ideone.com/a3DFd2
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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