題目要求如下:
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代碼如下:
/*
* Copyright (c) 2013, 煙臺大學計算機學院
* All rights reserved.
* 作 者: 沈遠宏
* 完成日期:2014 年06月24日
* 版 本 號:v1.0
* 問題描述:Description
定義一個複數類Complex,重載運算符“+”,“-”,“*”,“/”,使之能用於複數的加、減、乘、除。運算符重載函數作爲Complex類的成員函數。編寫程序,分別求兩個複數之和、差、積和商。
Input
兩個複數
Output
兩個複數之和、差、積和商
*/
//前置代碼及類型定義已給定如下,提交時不需要包含,會自動添加到程序前部
#include <iostream>
#include <iomanip>
using namespace std;
class Complex
{
public:
Complex();
Complex(double r,double i);
Complex operator+(Complex &c2);
Complex operator-(Complex &c2);
Complex operator*(Complex &c2);
Complex operator/(Complex &c2);
void display();
private:
double real;
double imag;
};
//************************************************************
Complex::Complex(double r,double i):real(r),imag(i){}
Complex Complex::operator+(Complex &c2)
{
return Complex(real+c2.real,imag+c2.imag);//**********注意return後面的Complex;*********
}
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<<"i)"<<endl;
}
//主函數已給定如下,提交時不需要包含,會自動添加到程序尾部
int main()
{
double real,imag;
cin>>real>>imag;
Complex c1(real,imag);
cin>>real>>imag;
Complex c2(real,imag);
cout<<setiosflags(ios::fixed);
cout<<setprecision(2);
Complex 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();
return 0;
}
運行結果:
OJ要求結果輸出例樣: