第八周 项目1-实现复数类中的运算符重载

 /*    *Copyright (c) 2015,烟台大学计算机学院    *All rights reserved.    *文件名称:time.cpp    *作者:刘天恩    *完成时间:2015年4月27号    *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  *程序输出: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void Complex::display(){    cout<<"("<<real<<","<<imag<<")i"<<endl;}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-imag*c2.imag;    c.imag=imag*c2.real+real*c2.imag;    return c;}Complex Complex::operator/(const Complex &c2){    Complex c;    c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);    c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);    return c;}//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;}

运行结果：