[YTU]_2440( C++习题 复数类--重载运算符+,-,*,/)

题目描述

定义一个复数类Complex，重载运算符“+”,“-”,“*”,“/”，使之能用于复数的加、减、乘、除。运算符重载函数作为Complex类的成员函数。编写程序，分别求两个复数之和、差、积和商。

输入

两个复数

输出

两个复数之和、差、积和商

样例输入

3 45 -10

样例输出

c1+c2=(8.00,-6.00i)c1-c2=(-2.00,14.00i)c1*c2=(55.00,-10.00i)c1/c2=(-0.20,0.40i)
#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(){}Complex::Complex(double r,double i){    real=r;    imag=i;}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,imag*c2.real+real*c2.imag);}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;}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;}