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 {
public:
    Sub(int x,int y):Base(x,y){
        
    }//引出x和y
    void calculate(){
        if(Base::getY()==0){
            cout<<"Error"<<endl;//确定分母是否为0
        }else{
            cout<<Base::getX()/Base::getY()<<endl;//引出getX和getY,然后再相除
        }
    }
};

int main() {

    int x, y, z;
    cin >> x;
    cin >> y;
    Sub sub(x, y);//既有sub头，又引出了sub(x,y)函数
    sub.calculate();//计算x/y
    
    return 0;
}