第八周实验报告1.2

/* (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： 实现复数类中的运算符重载
* 作 者： 任小宁

* 完成日期： 2012 年04 月10日
* 版 本 号：201158504431

* 对任务及求解方法的描述部分

* 输入描述：

* 问题描述：#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);
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
void Complex::display()
{
cout << "(" << real << "," << imag << "i)" << endl;
}

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,c1.imag * c2.real + c1.real * c2.imag);
}

Complex operator / (Complex &c1,Complex &c2)
{
return Complex((c1.real*c2.real+c1.imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag),
(c1.imag*c2.real-c1.real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag));

}
void 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");
}
* 程序输出：

* 程序头部的注释结束

*/