第8周项目1-实现复数类中的运算符重载（完整的类）

来源：互联网发布：大数据工程师累吗编辑：程序博客网时间：2024/04/27 18:49

/* * 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：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。* 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;}    friend Complex operator+(Complex &c1,Complex &c2);    friend Complex operator+(double d,Complex &c2);    friend Complex operator-(Complex &c1,Complex &c2);    friend Complex operator-(double d,Complex &c2);    friend Complex operator*(Complex &c1,Complex &c2);    friend Complex operator*(double d,Complex &c2);    friend Complex operator/(Complex &c1,Complex &c2);    friend Complex operator/(double d,Complex &c2);    void display();private:    double real;    double imag;};Complex operator+(Complex &c1,Complex &c2){    Complex c;    c.real=c1.real+c2.real;    c.imag=c1.imag+c2.imag;    return c;}Complex operator+(double d,Complex &c2){    return Complex(c2.real+d,c2.imag);}Complex operator-(Complex &c1,Complex &c2){    Complex c;    c.real=c1.real-c2.real;    c.imag=c1.imag-c2.imag;    return c;}Complex operator-(double d,Complex &c2){    return Complex(c2.real-d,c2.imag);}Complex operator*(Complex &c1,Complex &c2){    Complex c;    c.real=c1.real*c2.real;    c.imag=c1.imag*c2.imag;    return c;}Complex operator*(double d,Complex &c2){    return Complex(c2.real*d,c2.imag);}Complex operator/(Complex &c1,Complex &c2){    Complex c;    c.real=c1.real/c2.real;    c.imag=c1.imag/c2.imag;    return c;}Complex operator/(double d,Complex &c2){    return Complex(c2.real/d,c2.imag);}void Complex::display(){    cout<<'('<<real<<','<<imag<<')'<<endl;}int main(){    Complex c1(3,4),c2(5,-10),c3;    double d=5;    cout<<"c1=";    c1.display();    cout<<"c2=";    c2.display();    cout<<"d="<<d<<endl;    c3=c1+c2;    cout<<"c1+c2=";    c3.display();    c3=5+c1;    cout<<"c1+5=";    c3.display();    c3=c1-c2;    cout<<"c1-c2=";    c3.display();    c3=5-c1;    cout<<"5-c1=";    c3.display();    c3=c1*c2;    cout<<"c1*c2=";    c3.display();    c3=5*c1;    cout<<"c1*5=";    c3.display();    c3=c1/c2;    cout<<"c1/c2=";    c3.display();    c3=5/c1;    cout<<"5/c1=";    c3.display();    return 0;}

运行结果：

0 0