第十二周项目2：实现复数类中的运算符重载(2)

/*Copyright (c)2016,烟台大学计算机与控制工程学院
*All rights reserved.
*文件名称：main.cpp
*作    者：崔青青
*完成日期：2016年5月18日
*版 本 号：v1.0
*问题描述：实现复数类中的运算符重载。
*输入描述：
*输出描述：
*/
#include <iostream>

using namespace std;
class Complex
{
public:
Complex(){real=0;image=0;}
Complex(double r,double i)
{
real=r;
image=i;
}
friend Complex  operator+(const Complex &c1,const Complex &c2);
friend  Complex operator-(const Complex &c1,const Complex &c2);
friend  Complex operator*(const Complex &c1,const Complex &c2);
friend  Complex operator/(const Complex &c1,const Complex &c2);
void display();
private:
double real;
double image;
};
Complex operator+(const Complex &c1,const Complex &c2)
{

Complex c;
c.real=c1.real+c2.real;
c.image=c1.image+c2.image;
return c;
}
Complex operator-(const Complex &c1,const Complex &c2)
{
Complex c;
c.real=c1.real-c2.real;
c.image=c1.image-c2.image;
return c;
}
Complex operator*(const Complex &c1,const Complex &c2)
{
Complex c;
c.real=c1.real*c2.real;
c.image=c1.image*c2.image;
return c;
}
Complex operator/(const Complex &c1,const Complex &c2)
{
Complex c;
c.real=c1.real/c2.real;
c.image=c1.image/c2.image;
return c;
}
void Complex::display()
{
cout<<"("<<real<<" "<<image<<")"<<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;
}