第9周实验报告1

实验目的：实现负数类中的运算符重载

* 程序头部注释开始

* 程序的版权和版本声明部分

* 烟台大学计算机学院学生

* 文件名称：         运算符重载
* 作    者：          胡斌                

* 完成日期：  2012 年 4月17日

* 版本号：     v1.0    

* 程序头部的注释结束（此处也删除了斜杠）

#include <iostream>
using namespace std;
class Complex
{
public:
Complex(){real=0;imag=0;}

Complex operator+(Complex &c2);
Complex operator-(Complex &c2);
Complex operator*(Complex &c2);
Complex operator/(Complex &c2);
friend ostream&operator << (ostream&,Complex&);
friend istream&operator >> (istream&,Complex&);

private:
double real;
double imag;
};
//下面定义成员函数

int main()
{
Complex c1,c2,c3;
cin>>c1;
cout<<"c1=";
cout<<c1;
cin>>c2;
cout<<"c2=";
cout<<c2;
c3=c1+c2;
cout<<"c1+c2=";
cout<<c3;
c3=c1-c2;
cout<<"c1-c2=";
cout<<c3;
c3=c1*c2;
cout<<"c1*c2=";
cout<<c3;
c3=c1/c2;
cout<<"c1/c2=";
cout<<c3;
system("pause");
return 0;
}
Complex Complex::operator+(Complex &c2)
{
Complex c;
c.real=real+c2.real;
c.imag=imag+c2.imag;
return c;
}
Complex Complex::operator-(Complex &c2)
{
Complex c;
c.real=real-c2.real;
c.imag=imag-c2.imag;
return c;
}
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;
}
ostream&operator << (ostream& output,Complex&c)
{
output<<"("<<c.real<<"+"<<c.imag<<"i)"<<endl;
return output;
}
istream&operator >> (istream&input,Complex&c)
{
cout<<"请输入负数"<<endl;
input>>c.real>>c.imag;
return input;
}

截图：



 

前三个都比较简单！