1 // 文件complex.h: 复数类的定义
 2 #ifndef __COMPLEX__H__
 3 #define __COMPLEX__H__
 4 
 5 class Complex
 6 {
 7 public:
 8     Complex(double = 0.0, double = 0.0);
 9     Complex operator + (const Complex &) const;
10     Complex operator - (const Complex &) const;
11     //Complex & operator = (const Complex &);
12     void print()const;
13     
14 private:
15     double real; // 实数部分
16     double imaginary; // 虚数部分
17 };
18 
19 #endif
20 // 文件complex.cpp: 复数类的实现
21 #include <iostream.h>
22 #include "complex.h"
23 
24 Complex::Complex(double r, double i)
25 {
26     real = r;
27     imaginary = i;
28 }
29 
30 void Complex::print()const
31 {
32     cout << '(' << real << ", " << imaginary << ')';
33 }
34 
35 Complex Complex::operator + (const Complex &operand2) const
36 {
37     Complex sum;
38     sum.real = real + operand2.real;
39     sum.imaginary = imaginary + operand2.imaginary;
40     return sum;
41 }
42 
43 Complex Complex::operator - (const Complex &operand2) const
44 {
45     Complex diff;
46     diff.real = real - operand2.real;
47     diff.imaginary = imaginary - operand2.imaginary;
48     return diff;
49 }
50 
51 //Complex &Complex::operator = (const Complex &right)
52 //{
53 //    real = right.real;
54 //    imaginary = right.imaginary;
55 //    return  *this;
56 //}
57 // 文件ex13_1.cpp: 主函数定义，通过运算符操作复数对象
58 #include <iostream.h>
59 #include "complex.h"
60 
61 int main()
62 {
63     Complex x, y(4.3, 8.2), z(3.3, 1.1);
64     
65     // 输出x,y,z
66     cout << "x: ";
67     x.print();
68     cout << "\ny: ";
69     y.print();
70     cout << "\nz: ";
71     z.print();
72     
73     //输出加法运算
74     x = y + z;
75     cout << "\n\nx = y + z:\n";
76     x.print();
77     cout << " = ";
78     y.print();
79     cout << " + ";
80     z.print();
81     
82     //输出减法运算
83     x = y - z;
84     cout << "\n\nx = y - z:\n";
85     x.print();
86     cout << " = ";
87     y.print();
88     cout << " - ";
89     z.print();
90     cout << '\n';
91     
92     return 0;
93 }