c++复数类运算符重载

C++中的复数类可以通过运算符重载实现复数的加减乘除等运算。以下是一个示例代码，演示了如何重载复数类的运算符：

#include <iostream>
using namespace std;

class Complex {
private:
    double real;
    double imag;

public:
    Complex(double r = 0, double i = 0) : real(r), imag(i) {}

    Complex operator+(const Complex& other) const {
        return Complex(real + other.real, imag + other.imag);
    }

    Complex operator-(const Complex& other) const {
        return Complex(real - other.real, imag - other.imag);
    }

    Complex operator*(const Complex& other) const {
        return Complex(real * other.real - imag * other.imag, real * other.imag + imag * other.real);
    }

    Complex operator/(const Complex& other) const {
        double denominator = other.real * other.real + other.imag * other.imag;
        return Complex((real * other.real + imag * other.imag) / denominator, (imag * other.real - real * other.imag) / denominator);
    }

    friend ostream& operator<<(ostream& os, const Complex& c) {
        os << c.real << " + " << c.imag << "i";
        return os;
    }
};

int main() {
    Complex c1(1, 2);
    Complex c2(3, 4);

    cout << "c1 = " << c1 << endl;
    cout << "c2 = " << c2 << endl << endl;

    cout << "c1 + c2 = " << c1 + c2 << endl;
    cout << "c1 - c2 = " << c1 - c2 << endl;
    cout << "c1 * c2 = " << c1 * c2 << endl;
    cout << "c1 / c2 = " << c1 / c2 << endl;

    return 0;
}

在上述代码中，我们重载了复数类的加、减、乘、除四个运算符，通过重载运算符实现了复数的运算。同时，我们还重载了输出运算符，用于输出复数对象的值。