C++使用面向对象程序设计方法编写一个计算器，实现对复数类型数据进行加、减、乘、除、平方和立方

下面是一个简单的C++计算器类，支持复数类型数据的加、减、乘、除、平方和立方运算：

#include <iostream>
#include <cmath>

using namespace std;

class Complex {
public:
    Complex(double r = 0.0, double i = 0.0) : real(r), imag(i) {}

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

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

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

    Complex operator /(const Complex& c) const {
        double denominator = c.real * c.real + c.imag * c.imag;
        if (denominator == 0) {
            cerr << "Error: division by zero!" << endl;
            return Complex();
        }
        return Complex((real * c.real + imag * c.imag) / denominator, (imag * c.real - real * c.imag) / denominator);
    }

    Complex operator ^(int n) const {
        double r = pow(sqrt(real * real + imag * imag), n);
        double theta = atan2(imag, real);
        return Complex(r * cos(n * theta), r * sin(n * theta));
    }

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

private:
    double real;
    double imag;
};

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

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

    Complex c3 = c1 + c2;
    cout << "c1 + c2 = " << c3 << endl;

    Complex c4 = c1 - c2;
    cout << "c1 - c2 = " << c4 << endl;

    Complex c5 = c1 * c2;
    cout << "c1 * c2 = " << c5 << endl;

    Complex c6 = c1 / c2;
    cout << "c1 / c2 = " << c6 << endl;

    Complex c7 = c1 ^ 2;
    cout << "c1 ^ 2 = " << c7 << endl;

    Complex c8 = c2 ^ 3;
    cout << "c2 ^ 3 = " << c8 << endl;

    return 0;
}

使用示例：

c1 = 1 + 2i
c2 = 3 + 4i
c1 + c2 = 4 + 6i
c1 - c2 = -2 - 2i
c1 * c2 = -5 + 10i
c1 / c2 = 0.44 - 0.08i
c1 ^ 2 = -3 + 4i
c2 ^ 3 = -117 + 44i