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  1. #include <iostream>
  2. using namespace std;
  3. //____qcodep____
  4. class Complex
  5. {
  6. 	public:
  7. 	Complex(double r=0,double i=0)
  8. 	{
  9. 		re=r;im=i;
  10. 	}
  11. 	void add(Complex &p)
  12. 	{
  13. 		this->re+=p.re;
  14. 		this->im+=p.im;
  15. 	}
  16. 	void sub(Complex &p)
  17. 	{
  18. 		this->re-=p.re;
  19. 		this->im-=p.im;
  20. 	}
  21. 	void show()
  22. 	{
  23. 		if(re==0&&im==0) {cout<<0<<endl;return;}
  24. 		if(re!=0) cout<<re;
  25. 		if(re!=0&&im>0) cout<<"+"<<im<<"i"<<endl;
  26. 		else if(re==0&&im>0) cout<<im<<"i"<<endl;
  27. 		else if(im==0) cout<<endl;
  28. 		else cout<<im<<"i"<<endl;
  29. 	}
  30. 	private:
  31. 	double re,im;
  32. };
  33.  
  34.  
  35. int main()
  36. {
  37. 	double re, im;
  38. 	cin >> re >> im;
  39. 	Complex c1(re, im);		// 用re, im初始化c1
  40. 	cin >> re;
  41. 	Complex c2 = re;     		// 用实数re初始化c2
  42.  
  43. 	c1.show();
  44. 	c2.show();
  45. 	c1.add(c2);         // 将C1与c2相加，结果保存在c1中
  46. 	c1.show();          // 将c1输出
  47. 	c2.sub(c1);			// c2-c1，结果保存在c2中 
  48. 	c2.show();			// 输出c2 
  49.  
  50.     return 0;
  51. }
  52.  
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin 
3 5
4.5
stdout 
3+5i
4.5
7.5+5i
-3-5i
https://ideone.com/xUZdg8
language:
C++ (gcc 8.3)
created:
19 hours ago
visibility:
public

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