Complex类

/** 程序的版权和版本声明部分* Copyright (c)2012, 烟台大学计算机学院学生* All rightsreserved.* 文件名称： object.cpp* 作者：隋 鑫* 完成日期： 2013年 5 月 7 日* 版本号： v1.0* 输入描述：无* 问题描述：* 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;}Complex operator+(Complex &c2);Complex operator-(Complex &c2);Complex operator*(Complex &c2);Complex operator/(Complex &c2);friend ostream&operator<<(ostream&,Complex&);friend istream&operator>>(istream&,Complex&);private:double real;double imag;};ostream&operator<<(ostream&output,Complex&c){    output<<"("<<c.real;    if(c.imag>=0) output<<"+";    output<<c.imag<<"i)"<<endl;    return output;}istream&operator>>(istream&input,Complex&c){    cout<<"input real part and imaginary part of complex number : ";    input>>c.real>>c.imag;    return input;}//复数相加： (a+bi)+(c+di)=(a+c)+(b+d)i.Complex Complex::operator+(Complex &c2){Complex c;c.real=real+c2.real;c.imag=imag+c2.imag;return c;}//复数相减：(a+bi)-(c+di)=(a-c)+(b-d)i.Complex Complex::operator-(Complex &c2){Complex c;c.real=real-c2.real;c.imag=imag-c2.imag;return c;}//复数相乘：(a+bi)(c+di)=(ac－bd)+(bc+ad)i.Complex Complex::operator*(Complex &c2){Complex c;c.real=real*c2.real-imag*c2.imag;c.imag=imag*c2.real+real*c2.imag;return c;}//复数相除：(a+bi)/(c+di)=(ac+bd)/(c^2+d^2) +(bc-ad)/(c^2+d^2)iComplex Complex::operator/(Complex &c2){Complex c;c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);return c;}int main(){Complex c1,c2,c3;cin>>c1>>c2;cout<<"c1="<<c1<<endl;cout<<"c2="<<c2<<endl;c3=c1+c2;cout<<"c1+c2="<<c3<<endl;c3=c1-c2;cout<<"c1-c2="<<c3<<endl;c3=c1*c2;cout<<"c1*c2="<<c3<<endl;c3=c1/c2;cout<<"c1/c2="<<c3<<endl;return 0;}

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