第十二周上机实践项目1（1）：实现复数类中的运算符重载

/*
*Copyright(c) 2016.烟台大学计算机与控制工程学院
*ALL rights  reserved.
*文件名称：text11.cpp
*作者：赵子琳
*完成日期：2016年6月2日
*问题描述:1.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
*/
#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 Complex &c2);
Complex operator-(const Complex &c2);
Complex operator*(const Complex &c2);
Complex operator/(const Complex &c2);
void display();
private:
double real;
double imag;
};
//下面定义成员函数
Complex Complex::operator+(const Complex &c2) //重载运算符函数实现
{
return Complex(real+c2.real,imag+c2.imag);//创建一个临时无名对象作为返回值
}
Complex Complex::operator-(const Complex &c2)
{
return Complex(real-c2.real,imag-c2.imag);
}
Complex Complex::operator*(const Complex &c2)
{
return Complex(real*c2.real,imag*c2.imag);
}
Complex Complex::operator/(const Complex &c2)
{
return Complex(real/c2.real,imag/c2.imag);
}
void Complex::display()
{
cout<<"("<<real<<","<<imag<<")"<<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;
}