第九周任务一

/* (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： 李超                             
* 完成日期：   2012 年     4 月    17  日
* 版 本 号：          01.09.01


* 对任务及求解方法的描述部分
* 输入描述： 
* 问题描述： 接第八周任务一，定义Complex类中的<<和>>运算符的重载，实现输入和输出，改造源程序中对结果显示方式，使程序读起来更自然。
* 程序输出： 
* 程序头部的注释结束

*/

头文件Complex.h

#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, double &c2);friend Complex operator + (double &c1, Complex &c2);friend Complex operator - (Complex &c1, Complex &c2);friend Complex operator - (Complex &c1, double &c2);friend Complex operator - (double &c1, Complex &c2);friend Complex operator * (Complex &c1, Complex &c2);friend Complex operator * (Complex &c1, double &c2);friend Complex operator * (double &c1, Complex &c2);friend Complex operator / (Complex &c1, Complex &c2);friend Complex operator / (Complex &c1, double &c2);friend Complex operator / (double &c1, Complex &c2);friend istream & operator >> (istream &in, Complex &c);friend ostream & operator << (ostream &in, Complex &c);void display ();private:double real;double imag;};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,double &c2){return Complex (c1.real+c2, c1.imag);} Complex operator + (double &c1, Complex &c2)//该处有问题！！！{return Complex (c1 + c2.real , c2.imag );} Complex operator - (Complex &c1, Complex &c2){return Complex (c1.real + c2.real , c1.imag + c2.imag );}Complex operator - (Complex &c1, double &c2){return Complex (c1.real - c2, c1.imag);}Complex operator - (double &c1, Complex &c2){return Complex (c1 - c2.real, c2.imag );}Complex operator * (Complex &c1, Complex &c2)//（a+bi）·（c+di）=（ac－bd）+（bc+ad）i{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 * (double &c1, Complex &c2)//（a+bi）·（c+di）=（ac－bd）+（bc+ad）i，{return Complex (c1 * c2.real , c2.imag * c1);}Complex operator * (Complex &c1, double &c2)//（a+bi）·（c+di）=（ac－bd）+（bc+ad）i，{return Complex (c1.real * c2, c1.imag * c2);}Complex operator / (Complex &c1,Complex &c2)//（a+bi）÷(c+di)=(ac+bd)/(c^2+d^2) +((bc-ad)/(c^2+d^2))i{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;}Complex operator / (Complex &c1, double &c2)//（a+bi）÷(c+di)=(ac+bd)/(c^2+d^2) +((bc-ad)/(c^2+d^2))i{return Complex((c1.real * c2) / (c2 * c2), (c1.imag * c2) / (c2 * c2));}Complex operator / (double &c1, Complex &c2)//（a+bi）÷(c+di)=(ac+bd)/(c^2+d^2) +((bc-ad)/(c^2+d^2))i{return Complex ((c1 * c2.real ) / (c2.real * c2.real + c2.imag * c2.imag ), (-c1 * c2.imag ) / (c2.real * c2.real + c2.imag * c2.imag ));}void Complex::display ( )   {cout <<"(" <<real <<"," <<imag <<"i)" <<endl;}istream & operator >> (istream &in, Complex &c){in>>c.real >>c.imag;return in;}ostream & operator << (ostream &out, Complex &c){out <<"(" <<c.real <<"," <<c.imag <<"i)" <<endl;return out;}

主函数main.cpp

#include <iostream>#include "Complex.h"using namespace std;int main(){Complex c1,c2,c3;cout <<"请输入虚数c1（实部，虚部）";cin>>c1;cout <<"请输入虚数c2（实部，虚部）";cin>>c2;cout <<"c1=";cout<<c1;//c1.display();cout <<"c2=";cout <<c2;//c2.display();c3=c1+c2;cout <<"c1+c2=";cout <<c3;//c3.display();c3=c1-c2;cout<<"c1-c2=";cout <<c3;//c3.display();c3=c1*c2;cout<<"c1*c2=";cout <<c3; //c3.display();c3=c1/c2;cout<<"c1/c2=";cout <<c3;//c3.display();system("pause");return 0;}