第八周项目1--实现复数类中的运算符重载

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/**Copyright(C) 烟台大学计算机与控制工程学院学生*作者：刘慧艳*完成日期：2014.04.20版本号：V1.1问题描述：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。*/#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;};//下面定义成员函数//复数相加，(a+bi)+(c+di)=(a+c)+(b+d)iComplex Complex::operator+(Complex &c2){    Complex c;    c.real=real+c2.real;    c.imag=imag+c2.imag;    return c;}//复数相减，(a+bi)-(c+di)=(a-c)+(b-d)iComplex Complex::operator-(Complex &c2){    Complex c;    c.real=real-c2.real;    c.imag=imag-c2.imag;    return c;}//复数相乘：（a+bi)*(c+di)=(ac-bd)+(bc+ad)iComplex Complex::operator*(Complex &c2){    Complex c;    c.real=real*c2.real-imag*c2.imag;    c.imag=imag*c2.real+real*c2.imag;    return c;}//复数相除:(a+bi)/(c+di）=（ac+bd）/(c^2+d^2)+(bc-ad)/(c^2+d^2)iComplex Complex::operator/(Complex &c2)                       {                           Complex c;                           c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);                           c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);                           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;}
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