第九周实验报告1

#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);
friend ostream& operator << (ostream &output, Complex &c);
friend istream& operator >> (istream &input, Complex &c);
//void display();
private:
double real;
double imag;
};
//下面定义成员函数
Complex Complex::operator+(Complex &c2)
{
Complex c1;
c1.real =real+c2.real ;
c1.imag =imag+c2.imag ;
return c1;
}

Complex Complex::operator-(Complex &c2)
{
Complex c1;
c1.real =real-c2.real ;
c1.imag =imag-c2.imag ;
return c1;
}

Complex Complex::operator*(Complex &c2)
{
Complex c1;
c1.real =real*c2.real - imag * c2.imag  ;
c1.imag =real*c2.imag + imag * c2.real ;
return c1;
}

Complex Complex::operator/(Complex &c2)
{
Complex c1;
c1.real = (real*c2.real + imag * c2.imag ) / ( c2.real * c2.real + c2.imag * c2.imag ) ;
c1.imag =(imag* c2.real  - real * c2.imag ) / ( c2.real * c2.real + c2.imag * c2.imag ) ;
return c1;
}

//void Complex::display()
//{
//	cout << "(" << real << "," <<imag <<"i)"<<endl;
//}
ostream& operator << (ostream &output, Complex &c)
{
if (c.imag < 0)
{
output << c.real << c.imag << "i";
}
else
{
output << c.real << "+" << c.imag << "i";
}
return output;
}

istream& operator >> (istream &input, Complex &c)
{

cout << "输入复数：";
input >> c.real >> c.imag ;
return input;
}

int main()
{
Complex c1,c2,c3;
cin >> c1 >> c2;
cout << "c1=" << c1 << endl;
//c1.display();
cout << "c2=" << c2 << endl;
//c2.display();
c3 = c1 + c2;
cout << "c1+c2=" << c3 << endl;
//c3.display();
c3 = c1 - c2;
cout << "c1-c2=" << c3 << endl;
//c3.display();
c3 = c1 * c2;
cout << "c1*c2=" << c3 << endl;
//c3.display();
c3 = c1 / c2;
cout << "c1/c2=" << c3 << endl;
//c3.display();
system("pause");
return 0;
}