程序頭部註釋開始
* 程序的版權和版本聲明部分
* Copyright (c) 2011, 煙臺大學計算機學院學生
* All rights reserved.
* 文件名稱: 用類的成員函數完成運算符的重載
* 作 者: 郭廣建
* 完成日期: 2012年 04 月 10 日
* 版 本 號: 1.0
題目介紹
【任務1】實現複數類中的運算符重載
定義一個複數類重載運算符+、-、*、/,使之能用於複數的加減乘除。
(1)方案一:請用類的成員函數完成運算符的重載;
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;
};
//下面定義成員函數
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;
}
源程序:
#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;
};
//下面定義成員函數
Complex Complex::operator+(Complex &c2)
{
return Complex(real + c2.real , imag + c2.imag);
}
Complex Complex::operator-(Complex &c2)
{
return Complex(real - c2.real , imag - c2.imag);
}
Complex Complex::operator*(Complex &c2)
{
return Complex((real * c2.real - imag * c2.imag ) , (real * c2.imag + imag + c2.real));
}
Complex Complex::operator/(Complex &c2)
{
return Complex((real * c2.real + imag * c2.imag )/(c2.real * c2.real + c2.imag * c2.imag) ,( imag + c2.real - real * c2.imag)/(c2.real * c2.real + c2.imag * c2.imag));
}
void Complex::display()
{
cout << '(' << real << ',' << imag << ')' <<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;
}
運行結果: