第九周项目一——Complex类（利用输入输出运算符重载）

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/** 程序的版权和版本声明部分* Copyright (c)2013, 烟台大学计算机学院学生* All rightsreserved.* 文件名称： object.cpp* 作者：杨晨* 完成日期： 2013年4 月 25日* 版本号： v1.0* 输入描述：无* 问题描述：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+(Complex &c2);Complex operator-(Complex &c2);Complex operator*(Complex &c2);Complex operator/(Complex &c2);    friend ostream& operator <<(ostream&,Complex&); private:double real;double imag;};//下面定义成员函数Complex Complex::operator+(Complex &c2){    return Complex(real+c2.real,imag+c2.imag);}Complex Complex::operator-(Complex &c2){    return Complex(real-c2.real,imag-c2.imag);}Complex Complex::operator*(Complex &c2){    return Complex(real*c2.real-imag*c2.imag,imag*c2.real+real*c2.imag);}Complex Complex::operator/(Complex &c2){    return Complex((real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag),(imag*c2.real+real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag));}ostream& operator <<(ostream& output,Complex& c){output<<"("<<c.real;if(c.imag>=0){output<<"+";}output<<c.imag<<"i)"<<endl;return output;}//下面是测试函数int main(){Complex c1(3,4),c2(5,-10),c3;cout<<"c1="<<c1;cout<<"c2="<<c2;c3=c1+c2;cout<<"c1+c2="<<c3;c3=c1-c2;cout<<"c1-c2="<<c3;c3=c1*c2;cout<<"c1*c2="<<c3;c3=c1/c2;cout<<"c1/c2="<<c3;return 0;}

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