代码整理，将学过的三种运算符重载，每个至少实现一个运算符的重载

#include <iostream>

using namespace std;

class Cloudy
{
    friend bool operator!=(const Cloudy &L,const Cloudy &R);
private:
    int a;
public:
    int b;
public:
    Cloudy(){}
    Cloudy(int a,int b):a(a),b(b)
    {}

    const Cloudy operator*(const Cloudy &R)const
    {
        Cloudy temp;
        temp.a = a * R.a;
        temp.b = b * R.b;
        return temp;
    }

    Cloudy operator*=(Cloudy &R)
    {
        a *= R.a;
        b *= R.b;
        return *this;
    }

    void show()
    {
        cout << "a =" << a << " " << "b =" << b << endl;
    }
};

bool operator!=(const Cloudy &L,const Cloudy &R)
{
    if(L.a != R.a || L.b != R.b)
    {
        return true;
    }
    else
    {
        return false;
    }
}

int main()
{
    Cloudy c1(11,45);
    Cloudy c2(14,45);
    Cloudy c3;
    c3 = c2 * c1;
    c3.show();

    if(c1 != c2)
    {
        cout << "c1 != c2" << endl;
    }

    c3 *= c1;
    c3.show();
    return 0;
}