题解 | 重写子类计算逻辑

#include <iostream>
using namespace std;

class Base {

private:
    int x;
    int y;

public:
    Base(int x, int y) {
        this->x = x;
        this->y = y;
    }

    int getX() {
        return x;
    }

    int getY() {
        return y;
    }

    void calculate() {
        cout << getX() * getY() << endl;
    }

};

class Sub : public Base {
// write your code here......
    public:
    Sub(int x,int y):Base(x, y){
        
    }
    void calculate() {
        if(getY()==0) cout<<"Error";
        else cout << getX() / getY() << endl;
    }

};

int main() {

    int x, y, z;
    cin >> x;
    cin >> y;
    Sub sub(x, y);
    sub.calculate();
    
    return 0;
}