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：定义一个复数类重载运算符+、-、*、/，使之能用于复数的加减乘除。

* 作    者：王 琦                         
* 完成日期：2012年04月09   日
* 版 本 号：
* 输入描述：实现复数类中的运算符重载 方案①
* 问题描述：定义一个复数类重载运算符+、-、*、/，使之能用于复数的加减乘除
* 程序输出：

 

#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);
	void display();
private:
	double real;
	double imag;
};
//下面定义成员函数
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=imag*c2.real+real*c2.imag;        
	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;
}
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;
}

*程序显示

 

* 程序头部的注释结束

*/