第十二周 项目1.1-实现复数类中的运算符重载

/* 
 *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：李德坤
 *完成日期：2016年5月12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：无 
 *输出描述：无
 */ 
  
#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;
};
//下面定义成员函数
Complex Complex::operator+(const Complex &c2)
{
    Complex c;
    c.real=this->real+c2.real;
    c.imag=this->imag+c2.imag;
    return c;
}
Complex Complex::operator-(const Complex &c2)
{
    Complex c;
    c.real=this->real-c2.real;
    c.imag=this->imag-c2.imag;
    return c;
}
Complex Complex::operator*(const Complex &c2)
{
    Complex c;
    c.real=this->real*c2.real;
    c.imag=this->imag*c2.imag;
    return c;
}
Complex Complex::operator/(const Complex &c2)
{
    Complex c;
    c.real=this->real/c2.real;
    c.imag=this->imag/c2.imag;
    return c;
}
void Complex::display()
{
    cout<<"("<<real<<","<<imag<<")"<<endl;
}
//下面定义用于测试的main()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;
}