第12周项目1实现复数类的运算符重载3

/*

*Copyright (c) 2016,烟台大学计算机学院

*All rights reserved.

*文件名称 :

*作 者 : 刘默涵
*完成日期 : 2016年5月26号

*版 本 号 : v6.0

*

*问题描述 : 实践项目一——实现复数类的运算符重载

*输入描述 : 无

*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;}
Complex operator+(const double &d);
friend Complex operator+(const double &d,const Complex &c);
friend Complex operator+(const Complex &c1,const Complex &c2);
friend Complex operator-(const Complex &c1,const Complex &c2);
friend Complex operator*(const Complex &c1,const Complex &c2);
friend Complex operator/(const Complex &c1,const Complex &c2);
void display();
private:
double real;
double imag;
} ;
//下面定义成员函数
Complex operator+(const double &d,const Complex &c)
{
return Complex(c.real+d,c.imag);
}
Complex operator+(const Complex &c1,const Complex &c2)
{
return Complex(c1.real+c2.real,c1.imag+c2.imag);
}
Complex operator-(const Complex &c1,const Complex &c2)
{
return Complex(c1.real-c2.real,c1.imag-c2.imag);
}
Complex operator*(const Complex &c1,const Complex &c2)
{
return Complex(c1.real*c2.real-c1.imag*c2.imag,c1.real*c2.imag+c1.imag*c2.real);
}
Complex operator/(const Complex &c1,const Complex &c2)
{
return Complex((c1.real*c2.real+c1.imag*c2.imag)/(c2.imag*c2.imag+c2.real*c2.real),(-c1.real*c2.imag+c1.imag*c2.real)/(c2.imag*c2.imag+c2.real*c2.real));
}
void Complex::display()
{
cout<<"("<<real<<","<<imag<<"i)"<<endl;
}
Complex Complex::operator+(const double &d)
{
return Complex(this->real+d,imag);
}
//下面定义用于测试的main()函数
int main()
{
Complex c1(3,4),c2(5,-10),c3;
double d;
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();

cin>>d;
c3=d+c3;
c3.display();

c3=c3+d;
c3.display();

return 0;
}