第12周项目-1实现复数类中的运算符重载 2

来源：互联网发布：阿里云免费邮箱编辑：程序博客网时间：2024/05/17 21:54

/*
All rights reserced.
文件名称：main.cpp
作者：李鑫
完成日期：2016.6.20

问题描述：定义复数重载运算符+，-，*，/，使之用于复数的加减乘除，用友元函数，而不是成员函数。
！

 #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;};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);}Complex operator/(Complex &c1, Complex &c2){    return Complex(c1.real/c2.real,c1.imag/c2.imag);}void Complex::display(){    cout<<"("<<real<<","<<imag<<"i)"<<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();    return 0;}

运行结果：

心得：又熟悉了一遍友元函数。

0 0