复数类实现

复数类实现

实现复数类的++、–、+、-、比较大小等

1.#include <iostream>
2.using namespace std;
3.
4.class Complex
5.{
6.public:
7.    Complex(double real = 0.0, double image = 0.0)
8.        :_real(real)
9.        ,_image(image)
10.    {
11.    }
12.
13.    Complex(const Complex& d)
14.        :_real(d._real)
15.        ,_image(d._image)
16.    {
17.    }
18.    ~Complex()
19.    {
20.    }
21.
22.    Complex& operator=(const Complex& d)
23.    {
24.        _real = d._real;
25.        _image = d._image;
26.        return *this;
27.    }
28.
29.    void Display()
30.    {
31.        cout<<"_real=="<<_real<<"_image=="<<_image<<endl;
32.    }
33.
34.    bool operator>(const Complex& d)const
35.    {
36.        if((_real > d._real)&&(_image > d._image))
37.            return true;
38.        return false;
39.    }
40.
41.    bool operator<(const Complex& d)const
42.    {
43.        if((_real < d._real)&&(_image < d._image))
44.            return true;
45.        return false;
46.    }
47.
48.    bool operator>=(const Complex& d)const 
49.    {
50.        if(this < &d)
51.            return false;
52.        return true;
53.    }
54.
55.    bool operator<=(const Complex& d)const
56.    {
57.        if(this > &d)
58.            return false;
59.        return true;
60.    }
61.
62.    bool operator==(const Complex& d)const
63.    {
64.        if((_real == d._real)&&(_image == d._image))
65.            return true;
66.        return false;
67.    }
68.    bool operator!=(const Complex& d)const
69.    {
70.        if(this == &d)
71.            return false;
72.        return true;
73.    }
74.
75.    Complex& operator++()//(前置++)复数++只给实部+
76.    {
77.        _real++;
78.        return *this;
79.    }
80.
81.    Complex& operator++(int)//后置++
82.    {
83.        Complex tmp = *this;
84.        tmp._real++;
85.        return *this;
86.    }
87.
88.    Complex& operator+=(const Complex& d)
89.    {
90.        _real += d._real;
91.        return *this;
92.    }
93.
94.    Complex& operator+(const Complex& d)
95.    {
96.        _real + d._real;
97.        return *this;
98.    }
99.
100.private:
101.    double _real;
102.    double _image;
103.};
104.
105.
106.int main()
107.{
108.    Complex d1(2.3,3.2);
109.    Complex d2;
110.    d2 = d1;
111.    d2.Display();
112.    system("pause");
113.    return 0;
114.}
115.
116.