第九周项目1(1)-复数类中的运算符重载（续）

来源：互联网发布：我的世界mac版整合包编辑：程序博客网时间：2024/06/06 02:44

/* *Copyright (c) 2014, 烟台大学计算机学院 *All rights reserved. *文件名称：week9-1-1.cpp *作者：高赞 *完成日期：2015年 5 月 4 日 *版本号：v1.0 * * 问题描述：在复数类中的运算符重载基础上,再定义一目运算符 -，-c相当于0-c。 */#include <iostream>#include "Complex.h"using namespace std;//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();    cout<<endl;    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();    cout<<endl;    c3=c1+1;    cout<<"c1+1=";    c3.display();    c3=c1-1;    cout<<"c1-1=";    c3.display();    c3=c1*1;    cout<<"c1*1=";    c3.display();    c3=c1/1;    cout<<"c1/1=";    c3.display();    cout<<endl;    c3=1+c2;    cout<<"1+c2=";    c3.display();    c3=1-c2;    cout<<"1-c2=";    c3.display();    c3=1*c2;    cout<<"1*c2=";    c3.display();    c3=1/c2;    cout<<"1/c2=";    c3.display();    cout<<endl;    c3=-c1;    cout<<"-c1=";    c3.display();    return 0;}

Complex.h

#ifndef COMPLEX_H_INCLUDED#define COMPLEX_H_INCLUDEDclass Complex{public:    Complex()    {        real=0;        imag=0;    }    Complex(double r,double i)    {        real=r;        imag=i;    }    Complex operator-();    Complex operator+(const Complex &c2);    Complex operator-(const Complex &c2);    Complex operator*(const Complex &c2);    Complex operator/(const Complex &c2);    Complex operator+(const double &d);    Complex operator-(const double &d);    Complex operator*(const double &d);    Complex operator/(const double &d);    friend Complex operator+(const double &d,const Complex &c2);    friend Complex operator-(const double &d,const Complex &c2);    friend Complex operator*(const double &d,const Complex &c2);    friend Complex operator/(const double &d,const Complex &c2);    void display();private:    double real;    double imag;};#endif // COMPLEX_H_INCLUDED

Complex.cpp

#include "Complex.h"#include <iostream>using namespace std;Complex Complex::operator-(){    return Complex(-real,-imag);}//Complex and ComplexComplex Complex::operator+(const Complex &c2){    return(Complex(real+c2.real,imag+c2.imag));}Complex Complex::operator-(const Complex &c2){    return(Complex(real-c2.real,imag-c2.imag));}Complex Complex::operator*(const Complex &c2){    return(Complex(real*c2.real-imag*c2.imag,imag*c2.real+real*c2.imag));}Complex Complex::operator/(const Complex &c2){    double d=c2.real*c2.real+c2.imag*c2.imag;    return(Complex((real*c2.real+imag*c2.imag)/d,(imag*c2.real-real*c2.imag)/d));}//Complex and doubleComplex Complex::operator+(const double &d){    return(Complex(real+d,imag));}Complex Complex::operator-(const double &d){    return(Complex(real-d,imag));}Complex Complex::operator*(const double &d){    return(Complex(real*d,imag*d));}Complex Complex::operator/(const double &d){    double m=d*d;    return(Complex((real*d)/m,(imag*d)/m));}//double and ComplexComplex operator+(const double &d,const Complex &c2){    return(Complex(c2.real+d,c2.imag));}Complex operator-(const double &d,const Complex &c2){    return(Complex(d-c2.real,-c2.imag));}Complex operator*(const double &d,const Complex &c2){    return(Complex(c2.real*d,c2.imag*d));}Complex operator/(const double &d,const Complex &c2){    double m=c2.real*c2.real+c2.imag*c2.imag;    return(Complex((d*c2.real)/m,(-d*c2.imag)/m));}void Complex::display(){    if(imag>0)        cout<<real<<"+"<<imag<<"i"<<endl;    else if(imag<0)        cout<<real<<imag<<"i"<<endl;    else cout<<real<<endl;}

0 0