第八周实验报告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： 时永杰

* 完成日期： 2012 年 3月 26日

* 版 本 号：4308

【任务1】实现复数类中的运算符重载
定义一个复数类重载运算符+、-、*、/，使之能用于复数的加减乘除。
（1）方案一：请用类的成员函数完成运算符的重载；

T12.h

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);friend Complex operator*(Complex &c1 ,Complex &c2);friend Complex operator/(Complex &c1 ,Complex &c2);void display();private:double real;double imag;};

 

T12.main.

#include <iostream>#include "T1.h"using namespace std;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;}

 

T12.cpp.

#include <iostream>#include "T1.h"using namespace std;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.real*c2.imag+c1.imag*c2.real;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.real*c2.imag+c1.imag*c2.real)/(c2.real*c2.real-c2.imag*c2.imag);return c;}void Complex::display(){cout<<"("<<real<<","<<imag<<")"<<endl;}

2）方案二：请用类的友元函数，而不是成员函数，完成上面提及的运算符的重载；
（3）方案三：在方案二的基础上，扩展+、-、*、/运算符的功能，使之能与double型数据进行运算。设Complex c; double d; c?d和d?c的结果为将d视为实部为d的复数同c运算的结果（其中?为+、-、*、/之一）。另外，定义一目运算符-，-c相当于0-c。

T13.h

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);friend Complex operator*(Complex &c1 ,Complex &c2);friend Complex operator/(Complex &c1 ,Complex &c2);friend Complex operator+(Complex &c1,double d);friend Complex operator-(Complex &c1,double d);friend Complex operator*(Complex &c1,double d);friend Complex operator/(Complex &c1,double d);    friend Complex operator-(Complex &c1);void display();private:double real;double imag;};

 

 

T13.main

#include <iostream>#include "T1.h"using namespace std;int main(){Complex c1(3,4),c2(5,-10),c3;double d=3;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();     c3=c1+d;cout<<"c1+c2=";c3.display();c3=c1-d;cout<<"c1-c2=";c3.display();c3=c1*d;cout<<"c1*c2=";c3.display();c3=c1/d;cout<<"c1/c2=";c3.display();c3=-c1;c3.display();system("pause");return 0;}

 

T13.cpp

#include <iostream>#include "T1.h"using namespace std;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.real*c2.imag+c1.imag*c2.real;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.real*c2.imag+c1.imag*c2.real)/(c2.real*c2.real-c2.imag*c2.imag);return c;}Complex operator + (Complex &c1,double d){Complex c;c.real=c1.real+d;;c.imag=c1.imag;return c;}Complex operator - (Complex &c1,double d){Complex c;c.real=c1.real-d;c.imag=c1.imag;return c;}Complex operator * (Complex &c1,double d){Complex c;c.real=c1.real*d;c.imag=c1.imag;return c;}Complex operator / (Complex &c1,double d){Complex c;c.real=c1.real/d;c.imag=c1.imag;return c;}Complex operator - (Complex &c1){Complex c;c.real=-c1.real;c.imag=-c1.imag;return c;}void Complex::display(){cout<<"("<<real<<","<<imag<<")"<<endl;}

第一个找不到了