第八周实验报告3
2012-04-09 15:40
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/* (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: 复数类中的运算符重载
* 作 者: 于宸
* 完成日期: 2012 年 04 月 09日
* 版 本 号: V.1.0
* 对任务及求解方法的描述部分
* 问题描述: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。
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。
* 程序头部的注释结束*/
[cpp] view
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#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);//复数加法
friend Complex operator - (Complex &c1,Complex &c2);//复数减法
friend Complex operator * (Complex &c1,Complex &c2);//复数乘法
friend Complex operator / (Complex &c1,Complex &c2);//复数除法
friend Complex operator + (Complex &c1,const double &i);//复数加非复数
friend Complex operator + (const double &i,Complex &c1);//非复数加复数
friend Complex operator - (Complex &c1);//定义一目运算符“-”
void display();
private:
double real;
double imag;
};
//下面定义成员函数
void Complex::display()
{
cout << "(" << real << "," << imag << "i)" << endl;
}
//复数加法
Complex operator + (Complex &c1,Complex &c2)
{
return Complex(c1.real + c2.real,c1.imag + c2.imag);
}
//复数减法
Complex operator - (Complex &c1,Complex &c2)
{
return Complex(c1.real - c2.real,c1.imag - c2.imag);
}
//复数乘法
Complex operator * (Complex &c1,Complex &c2)
{
return Complex(c1.real * c2.real - c1.imag * c2.imag,c1.imag * c2.real + c1.real * c2.imag);
}
//复数除法
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));
}
//复数与double型相加
Complex operator+(Complex &c1,const double &i)
{
return Complex(c1.real + i,c1.imag);
}
//double型与复数相加
Complex operator+(const double &i,Complex &c1)
{
return Complex(c1.real + i,c1.imag);
}
//定义一目运算符“-”
Complex operator - (Complex &c1)
{
return Complex(-c1.real,-c1.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();
c3 = c1 + 1.11;
cout << "c1 + 1.11 = ";
c3.display();
c3 = 1.11 + c1;
cout << "1.11 + c1 = ";
c3.display();
c3 = -c1;
cout<< "-c1 = ";
c3.display();
system("pause");
}
* 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: 复数类中的运算符重载
* 作 者: 于宸
* 完成日期: 2012 年 04 月 09日
* 版 本 号: V.1.0
* 对任务及求解方法的描述部分
* 问题描述: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。
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。
* 程序头部的注释结束*/
[cpp] view
plaincopy
#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);//复数加法
friend Complex operator - (Complex &c1,Complex &c2);//复数减法
friend Complex operator * (Complex &c1,Complex &c2);//复数乘法
friend Complex operator / (Complex &c1,Complex &c2);//复数除法
friend Complex operator + (Complex &c1,const double &i);//复数加非复数
friend Complex operator + (const double &i,Complex &c1);//非复数加复数
friend Complex operator - (Complex &c1);//定义一目运算符“-”
void display();
private:
double real;
double imag;
};
//下面定义成员函数
void Complex::display()
{
cout << "(" << real << "," << imag << "i)" << endl;
}
//复数加法
Complex operator + (Complex &c1,Complex &c2)
{
return Complex(c1.real + c2.real,c1.imag + c2.imag);
}
//复数减法
Complex operator - (Complex &c1,Complex &c2)
{
return Complex(c1.real - c2.real,c1.imag - c2.imag);
}
//复数乘法
Complex operator * (Complex &c1,Complex &c2)
{
return Complex(c1.real * c2.real - c1.imag * c2.imag,c1.imag * c2.real + c1.real * c2.imag);
}
//复数除法
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));
}
//复数与double型相加
Complex operator+(Complex &c1,const double &i)
{
return Complex(c1.real + i,c1.imag);
}
//double型与复数相加
Complex operator+(const double &i,Complex &c1)
{
return Complex(c1.real + i,c1.imag);
}
//定义一目运算符“-”
Complex operator - (Complex &c1)
{
return Complex(-c1.real,-c1.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();
c3 = c1 + 1.11;
cout << "c1 + 1.11 = ";
c3.display();
c3 = 1.11 + c1;
cout << "1.11 + c1 = ";
c3.display();
c3 = -c1;
cout<< "-c1 = ";
c3.display();
system("pause");
}