定义一个复数类Complex,重载运算符“+”， "-"，“*”,“/”，使之能用于复数的加，减，乘，除。运算符重载函数作为Complex类的成员函数。编写程序，分别求两个复数之和，差，积和商。
|
#include <iostream>
using namespace std;
//复数类
class Complex
{
public:
Complex(){real = 0;imag = 0;}
Complex(double r,double i){real = r;imag = i;}
void display();
Complex operator +(Complex &c2);//重载操作符+
Complex operator -(Complex &c2);//重载操作符-
Complex operator *(Complex &c2);//重载操作符*
Complex operator /(Complex &c2);//重载操作符/
private:
double real;
double imag;
};
void Complex::display()
{
cout << "(" << real << "," << imag << "i)" << endl;
}
Complex Complex::operator +(Complex &c2)
{
Complex c;
c.real = real + c2.real;
c.imag = imag + c2.imag;
return c;
}
Complex Complex::operator -(Complex &c2)
{
Complex c;
c.real = real - c2.real;
c.imag = imag - c2.imag;
return c;
}
Complex Complex::operator *(Complex &c2)
{
Complex c;
c.real = real * c2.real - imag * c2.imag;
c.imag = imag * c2.real + real * c2.imag;
return c;
}
Complex Complex::operator /(Complex &c2)
{
Complex c;
double temp = c2.real * c2.real + c2.imag * c2.imag;
c.real = (real * c2.real + imag * c2.imag) / temp;
c.imag = (imag * c2.real - real * c2.imag) / temp;
return c;
}
int main()
{
Complex c1(3,4),c2(5,-10),c3,c4,c5,c6;
c3 = c1 + c2;
c4 = c1 - c2;
c5 = c1 * c2;
c6 = c1 / c2;
cout << "c1=";c1.display();
cout << "c2=";c2.display();
cout << "c1 + c2 ="; c3.display();
cout << "c1 - c2=";c4.display();
cout << "c1 * c2=";c5.display();
cout << "c1 / c2=";c6.display();
system("pause");
return 0;
}
|
