第8周项目1-实现复数类中的运算符重载

/*
* Copyright (c) 2014, 烟台大学计算机学院
* All rights reserved.
* 文件名称：test.cpp
* 作    者：梁璨
* 完成日期：2015 年 4  月  29 日
* 版 本 号：v1.0
*
* 问题描述：请用类的成员函数，定义复数类重载运算符+、-、*、/，使之能用于复数的加减乘除。　
* 输入描述： ；
* 程序输出： 。

#include <iostream>

using namespace std;

class Complex
{
public:
Complex(){real=0;imag=0;}
Complex(double r,double i){real=r;imag=i;}
Complex operator+(const Complex &c2);
Complex operator-(const Complex &c2);
Complex operator*(const Complex &c2);
Complex operator/(const Complex &c2);
void display();
private:
double real;
double imag;
};

Complex Complex::operator+(const Complex &c2)
{
Complex c;
c.real=real+c2.real;
c.imag=imag+c2.imag;
return c;
}

Complex Complex::operator-(const Complex &c2)
{
Complex c;
c.real=real-c2.real;
c.imag=imag-c2.imag;
return c;
}

Complex Complex::operator*(const Complex &c2)
{
Complex c;
c.real=real*c2.real;
c.imag=imag*c2.imag;
return c;
}

Complex Complex::operator/(const Complex &c2)
{
Complex c;
c.real=real/c2.real;
c.imag=imag/c2.imag;
return c;
}

void Complex::display()
{
cout<<'('<<real<<','<<imag<<')'<<endl;
}

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;
}