第九周项目一复数类中运算符重载续

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01./*                     02.*Copyright (c) 2014,烟台大学计算机学院                     03.*All gight reserved.                     04.*文件名称：temp.cpp                     05.*作者：张震刚                    06.*完成时间：2015年5月12日                     07.*版本号：v1.0                     08.*问题描述：实现double与复数的运算。                   09.*输入描述：无。                    10.*输出描述：无。                      11.*/

#include <iostream>using namespace std;class Complex{private:    double real;    double imag;public:    Complex()    {        real=0;        imag=0;    }    Complex(double r,double i)    {        real=r;        imag=i;    }     Complex operator-();     friend  ostream& operator <<(ostream& output,const Complex& c);     friend  istream& operator >>(istream& input,Complex& c);     friend Complex operator+(double d1,Complex &c1);     friend Complex operator+(Complex &c1,double d1);     friend Complex operator+(Complex &c1,Complex &c2);     friend Complex operator-(double d1,Complex &c1);     friend Complex operator-(Complex &c1,double d1);     friend Complex operator-(Complex &c1,Complex &c2);     friend Complex operator*(Complex &c1,Complex &c2);     friend Complex operator*(Complex &c1,double d1);     friend Complex operator*(double d1,Complex &c1);     friend Complex operator/(Complex &c1,Complex &c2);     friend Complex operator/(Complex &c1,double d1);     friend Complex operator/(double d1,Complex &c1);};ostream& operator << (ostream& output,const Complex& c){    output<<"("<<c.real;    if(c.imag>=0)output<<"+";    output<<c.imag<<"i)";    return output;}istream& operator >>(istream& input,Complex& c){    int a,b;    char sign,i;    do    {        cout<<"input a Complex number(a+bi)or(a-bi)";        input>>a>>sign>>b>>i;    }    while(!((sign=='+' ||sign=='-')&&i==i));        c.real=a;        c.imag=(sign=='+')?b:-b;        return input;}Complex Complex::operator-(){    return(0-*this);}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 d1, Complex &c2){    Complex c(d1,0);    return c+c2;}Complex operator+(Complex &c1, double d2){    Complex c(d2,0);    return c1+c;}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 d1, Complex &c2){    Complex c(d1,0);    return c-c2;}Complex operator-(Complex &c1, double d2){    Complex c(d2,0);    return c1-c;}Complex operator*(Complex &c1, Complex &c2){    Complex c;    c.real=c1.real*c2.real-c1.imag*c2.imag;    c.imag=c1.imag*c2.real+c1.real*c2.imag;    return c;}Complex operator*(double d1, Complex &c2){    Complex c(d1,0);    return c*c2;}Complex operator*(Complex &c1, double d2){    Complex c(d2,0);    return c1*c;}Complex operator/(Complex &c1, Complex &c2){    Complex c;    c.real=(c1.real*c2.real+c1.imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);    c.imag=(c1.imag*c2.real-c1.real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);    return c;}Complex operator/(double d1, Complex &c2){    Complex c(d1,0);    return c/c2;}Complex operator/(Complex &c1, double d2){    Complex c(d2,0);    return c1/c;}int main(){    Complex c1,c2,c3;    double d=11;    cout<<"c1: "<<endl;;    cin>>c1;    cout<<"c2: "<<endl;    cin>>c2;    cout<<"c1="<<c1<<endl;    cout<<"c2="<<c2<<endl;    cout<<"d="<<d<<endl;    c3=c1+c2;    cout<<"c1+c2="<<c3<<endl;    cout<<"c1+d="<<(c1+d)<<endl;    cout<<"d+c1="<<(d+c1)<<endl;    c3=c1-c2;    cout<<"c1-c2="<<c3<<endl;    cout<<"c1-d="<<(c1-d)<<endl;    cout<<"d-c1="<<(d-c1)<<endl;    c3=c1*c2;    cout<<"c1*c2="<<c3<<endl;    cout<<"c1*d="<<(c1*d)<<endl;    cout<<"d*c1="<<(d*c1)<<endl;    c3=c1/c2;    cout<<"c1/c2="<<c3<<endl;    cout<<"c1/d="<<(c1/d)<<endl;    cout<<"d/c1="<<(d/c1)<<endl;    return 0;}<img src="http://img.blog.csdn.net/20150513091104047?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvYV9idWxlX2JveQ==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

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