第八周任务一2

* (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：复数类中的运算符重载

* 作    者：    张艳明               

* 完成日期：     2012    年 4  月    9  日

 版 本 号：       V1.0  

 * 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;}  friend Complex operator+(Complex &c1 ,Complex &c2);  friend Complex operator-(Complex &c1,Complex &c2);  //友元函数最少两个参数friend Complex operator*(Complex &c1,Complex &c2);  friend Complex operator/(Complex &c1,Complex &c2);  void display();  private:  double real;  double imag;  };  //下面定义成员函数   Complex operator + (Complex &c1,Complex &c2)  {return Complex(c1.real+c2.real,c1.imag+c2.imag);  } Complex operator-(Complex &c1,Complex &c2)  {return Complex(c1.real-c2.real,c1.imag-c2.imag);  }  Complex  operator*(Complex &c1,Complex &c2)  {return Complex(c1.real*c2.real,c1.imag*c2.imag);  }  Complex operator/(Complex &c1,Complex &c2)  {return Complex(c1.real/c2.real,c1.imag/c2.imag);   }  void Complex::display()  {cout<<"("<<real <<","<<imag<<"i)"<<endl;  }int main()  {  Complex c1(3,4),c2(5,-10),c3;  cout<<"c1=";  c1.display();  cout<<"c2=";  c2.display();  c3=c1+c2;  cout<<"c1+c2=";  c3.display();  c3=c1-c2;  cout<<"c1-c2=";  c3.display();  c3=c1*c2;  cout<<"c1*c2=";  c3.display();  c3=c1/c2;  cout<<"c1/c2=";  c3.display();  system("pause");  return 0;  }