实现复数类中的运算符重载（3）

来源：互联网发布：js什么叫框架编辑：程序博客网时间：2024/05/01 01:49
/* * 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：胡庆龙 * 完成日期：2016年5月19日 * 版 本 号：v1.0 * * 问题描述：（3）定义一个定义完整的类（是可以当作独立的产品发布，成为众多项目中的“基础工程”）。 *                这样的类在(2)的基础上，扩展+、-、*、/运算符的功能，使之能与double型数据进行运算。 *                设Complex c; double d; c+d和d+c的结果为“将d视为实部为d的复数同c相加”，其他-、*、/运算符类似。 */#include <iostream>using namespace std;class Complex{public:    Complex(){real=0;imag=0;}    Complex(double r,double i){real=r; imag=i;}    friend Complex operator+(Complex &c1, Complex &c2);    friend Complex operator-(Complex &c1, Complex &c2);    friend Complex operator*(Complex &c1, Complex &c2);    friend Complex operator/(Complex &c1, Complex &c2);    friend Complex operator+(Complex &c, double d);    friend Complex operator-(Complex &c, double d);    friend Complex operator*(Complex &c, double d);    friend Complex operator/(Complex &c, double d);    friend Complex operator+(double d, Complex &c);    friend Complex operator-(double d, Complex &c);    friend Complex operator*(double d, Complex &c);    friend Complex operator/(double d, Complex &c);    void display();private:    double real;    double imag;};Complex operator+(Complex &c1, Complex &c2){    Complex a;    a.real=c1.real+c2.real;    a.imag=c1.imag+c2.imag;    return a;}Complex operator-(Complex &c1, Complex &c2){    Complex a;    a.real=c1.real-c2.real;    a.imag=c1.imag-c2.imag;    return a;}Complex operator*(Complex &c1, Complex &c2){    Complex a;    a.real=c1.real*c2.real;    a.imag=c1.imag*c2.imag;    return a;}Complex operator/(Complex &c1, Complex &c2){    Complex a;    a.real=c1.real/c2.real;    a.imag=c1.imag/c2.imag;    return a;}Complex operator+(Complex &c, double d){    return Complex(c.real+d,c.imag);}Complex operator-(Complex &c, double d){    return Complex(c.real-d,c.imag);}Complex operator*(Complex &c, double d){    return Complex(c.real*d,c.imag);}Complex operator/(Complex &c, double d){    return Complex(c.real/d,c.imag);}Complex operator+(double d,Complex &c){    return Complex(d+c.real,c.imag);}Complex operator-(double d,Complex &c){    return Complex(d-c.real,c.imag);}Complex operator*(double d,Complex &c){    return Complex(d*c.real,c.imag);}Complex operator/(double d,Complex &c){    return Complex(d/c.real,c.imag);}void Complex::display(){    cout<<"("<<real<<","<<imag<<")"<<endl;}int main(){    Complex c1(3,4),c2(5,-10),c3;    double d=11;    cout<<"c1=";    c1.display();    cout<<"c2=";    c2.display();    cout<<"d="<<d<<endl<<endl;    cout<<"下面是重载运算符的计算结果: "<<endl;    c3=c1+c2;    cout<<"c1+c2=";    c3.display();    cout<<"c1+d=";    (c1+d).display();    cout<<"d+c1=";    (d+c1).display();    c3=c1-c2;    cout<<"c1-c2=";    c3.display();    cout<<"c1-d=";    (c1-d).display();    cout<<"d-c1=";    (d-c1).display();    c3=c1*c2;    cout<<"c1*c2=";    c3.display();    cout<<"c1*d=";    (c1*d).display();    cout<<"d*c1=";    (d*c1).display();    c3=c1/c2;    cout<<"c1/c2=";    c3.display();    cout<<"c1/d=";    (c1/d).display();    cout<<"d/c1=";    (d/c1).display();    return 0;}
0 0