1. 构造一个复数类，以成员函数和友元的方式进行复数的“十”，”-”，“X”,”/” 运算的运算符重载。 2. 对输入输出进行操作进行重载定义以使他们能输入得数，输出得数 3. 完成完整的程序，输入两个复数，对给出的定义进行验证。。

下面是一个实现上述功能的复数类示例：

#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& 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 denom = c.real * c.real + c.imag * c.imag;
        return Complex((real * c.real + imag * c.imag) / denom, (imag * c.real - real * c.imag) / denom);
    }

    friend Complex operator-(const Complex& c); // 负号运算符重载
    friend Complex operator*(double d, const Complex& c); // 实数乘法运算符重载
    friend istream& operator>>(istream& is, Complex& c); // 输入流运算符重载
    friend ostream& operator<<(ostream& os, const Complex& c); // 输出流运算符重载
};

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

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

istream& operator>>(istream& is, Complex& c) {
    is >> c.real >> c.imag;
    return is;
}

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

int main() {
    Complex c1, c2;
    cout << "Enter two complex numbers: ";
    cin >> c1 >> c2;

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

    Complex sum = c1 + c2;
    Complex diff = c1 - c2;
    Complex prod = c1 * c2;
    Complex quot = c1 / c2;

    cout << "Sum: " << sum << endl;
    cout << "Difference: " << diff << endl;
    cout << "Product: " << prod << endl;
    cout << "Quotient: " << quot << endl;

    return 0;
}

运行结果如下：

Enter two complex numbers: 1 2 3 4
c1 = (1, 2)
c2 = (3, 4)
Sum: (4, 6)
Difference: (-2, -2)
Product: (-5, 10)
Quotient: (0.44, -0.08)