第九周任务-项目一（输出输入流重载）

/*
* 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：王锴英
* 完成日期： 2013年05月07日
* 版本号： v1.0
* 输入描述：无
* 问题描述：无
* 程序输出：无
*/
#include <iostream>
#include <Cstring>
using namespace std;
class Complex
{
public:
 Complex( ){real=0;imag=0;}
 //实现输入输出运算符重载
 friend istream& operator>>(istream &cin,Complex&c);
 friend ostream& operator<<(ostream &cout,Complex&c);
//实现加减乘除运算符重载
 friend Complex operator+(Complex &c1,Complex &c2);
 friend Complex operator-(Complex &c1,Complex &c2);
 friend Complex operator*(Complex &c1,Complex &c2);
 friend Complex operator/(Complex &c1,Complex &c2);
 friend istream& operator>>(istream &cin,Complex&c);
 friend ostream& operator<<(ostream &cout,Complex&c);
private:
 double real;
 double imag;
};
//成员函数的定义
Complex operator+(Complex &c1,Complex &c2)
{
 Complex c;
 c.real=c1.real+c2.real;
 c.imag=c1.imag+c2.imag;
 return 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*(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/(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;
}
//输入输出运算符重载
istream & operator>>(istream&cin,Complex&c)
{
    cout<<"请输入复数的实部与虚部"<<endl;
    cin>>c.real>>c.imag;
    return cin;
}
ostream & operator<<(ostream &cout,Complex&c)
{
    cout<<"(";
    cout<<c.real;
    cout<<","<<c.imag<<"i)"<<endl;
    return cout;
}
//main函数经行测试
int main( )
{
    Complex c1,c2,c3;
    cin>>c1>>c2;
    cout<<c1<<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;
}