第九周实验报告任务1

/* (程序头部注释开始)
* 程序的版权和版本声明部分
* Copyright (c) 2011, 烟台大学计算机学院学生 
* All rights reserved.
* 文件名称：                              
* 作    者：王引琳                              
* 完成日期：   2012      年   4   月    14    日
* 版 本 号：          

* 对任务及求解方法的描述部分
* 输入描述： 
* 问题描述： 
* 程序输出： 
* 程序头部的注释结束
*/
#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 istream& operator >>(istream&,Complex&);//运算符>>重载为友元函数
	friend ostream& operator <<(ostream&,Complex&);//运算符<<重载为友元函数
	
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)
{
	Complex c;
	c.real=real*c2.real+imag*c2.imag;
	c.imag=real*c2.imag+imag*c2.real;
	return c;
} 
Complex 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;
}


istream& operator >>(istream& input,Complex& c)//定义运算符>>重载函数
{
	cout<<"请输入实部和虚部：";
	input>>c.real>>c.imag;
	return input;
}

ostream& operator <<(ostream& output,Complex& c)//定义运算符<<重载函数
{
	output<<"("<<c.real;
	if(c.imag>=0) output << "+";
	output<<c.imag<<"i)"<<endl;
	return output;
}



int main()
{
	Complex c1,c2,c3;
	cin>>c1>>c2;
	cout<<"c1="<<c1<<endl;
	cout<<"c2="<<c2<<endl;

	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;

	system("pause");
	return 0;
}

上机感言：哎~~，主函数中用cin ，cout，这样写着舒服多了。