第八周（运算符重载）一般函数

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/*
*copyright(c) 2015,烟台大学计算机学院
*All rights reserved。
*文件名称：第八周（运算符重载）

*作者：王忠
*完成日期：2015.4.28

*版本号：v1.0
*
*问题描述：请用类的成员函数，定义复数类重载运算符+、-、*、/，使之能用于复数的加减乘除

*输入描述：

*程序输出：

#include <iostream>using namespace std;class Complex{public:    Complex(){real=0;imag=0;}    Complex(double r,double i){real=r; imag=i;}    double  getreal()    {        return real;    }    double  getimag()    {        return imag;    }    double setreal(double r)    {        real=r;    }    double setimag(double i)    {        imag=i;    }    void display();private:    double real;    double imag;};//下面定义成员函数 Complex operator+(Complex &c1,Complex &c2)    {        Complex c;        c.setreal(c1.getreal()+c2.getreal());        c.setimag(c1.getimag()+c2.getimag());        return c;    } Complex operator-(Complex &c1,Complex &c2)    {        Complex c;        c.setreal(c1.getreal()-c2.getreal());        c.setimag(c1.getimag()-c2.getimag());        return c;    } Complex operator*(Complex &c1,Complex &c2)    {        Complex c;        c.setreal(c1.getreal()*c2.getreal()-c1.getimag()*c2.getimag());        c.setimag(c1.getimag()*c2.getreal()+c1.getreal()*c2.getimag());        return c;    } Complex operator/(Complex &c1,Complex &c2)    {        Complex c;        c.setreal((c1.getreal()*c2.getreal()+c1.getimag()*c2.getimag())/(c2.getreal()*c2.getreal()+c2.getimag()*c2.getimag()));        c.setimag((c1.getimag()*c2.getreal()-c1.getreal()*c2.getimag())/(c2.getreal()*c2.getreal()+c2.getimag()*c2.getimag()));        return c;    }void Complex::display(){    cout<<real<<'+'<<imag<<'i'<<endl;}//下面定义用于测试的main()函数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;}

数不清的括号看着眼花缭乱的~~~~~~

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