第八周项目一任务*1*成员函数

1. /*   
2. * 程序的版权和版本声明部分   
3. * Copyright (c)2012, 烟台大学计算机学院学生   
4. * All rightsreserved.   
5. * 文件名称： 1.cpp   
6. * 作者：王俊  
7. * 完成日期： 2013年 4 月 19 日   
8. * 版本号： v1.0   
9. * 输入描述：无   
10. * 问题描述：   
11. * 程序输出：   
12. */      
13. 代码输出：

14. #include <iostream>
    
    using namespace std;
    
    class Complex
    {public:
    	Complex(){real=0;imag=0;}
    	Complex(double r,double i){real=r;imag=i;}
    	Complex operator+(Complex &c2);
    	Complex operator-(Complex &c2);
    	Complex operator*(Complex &c2);
    	Complex operator/(Complex &c2);
    	void display();
     private:
    	double real;
    	double imag;
    };
    //下面定义成员函数
     Complex Complex::operator+(Complex &c2)
        {
        Complex c;
        c.real=real+c2.real;
        c.imag=imag+c2.imag;
        return c;
        }
    Complex Complex:: operator-(Complex &c2)
    	{
    	Complex c;
        c.real=real-c2.real;
        c.imag=imag-c2.imag;
        return c;
    	}
    Complex Complex:: operator*(Complex &c2)
    	{
    	Complex c;
        c.real=real*c2.real;
        c.imag=imag*c2.imag;
        return c;
    	}
    Complex Complex:: operator/(Complex &c2)
    	{
    	Complex c;
        c.real=real/c2.real;
        c.imag=imag/c2.imag;
        return c;
    	}
    void Complex::  display()
    {
    cout<<"("<<real<<","<<imag<<")"<<endl;
    }
    //下面是测试函数
    int main()
    {
    	Complex c1(3,4),c2(5,-10),c3;
    	cout<<"c1=";
    	c1.display();
    	cout<<"c2=";
    	c2.display();
    	c3=c1+c2;
    	cout<<"c1+c2=";
    	c3.display();
    	c3=c1-c2;
    	cout<<"c1-c2=";
    	c3.display();
    	c3=c1*c2;
    	cout<<"c1*c2=";
    	c3.display();
    	c3=c1/c2;
    	cout<<"c1/c2=";
    	c3.display();
    	return 0;
    }
    

    
    运行结果：