【C++OJ多重继承与虚拟继承】交通工具（多重继承）

【C++OJ多重继承与虚拟继承】交通工具（多重继承）

题目描述

输入

输出

输入样例

输出样例

参考代码

#include <iostream>
#include <string>
using namespace std;

class CVehicle //车类CVehicle作为基类
{
protected: //具有max_speed、speed、weight等数据成员
    double max_speed;
    double speed;
    double weight;

public:
    CVehicle(double m, double s, double w) : max_speed(m), speed(s), weight(w) {} //初始化参数列表
    void display()                                                                //输出函数
    {
        cout << "max_speed:" << max_speed << endl
             << "speed:" << speed << endl
             << "weight:" << weight << endl;
    }
};

class CBicycle : virtual public CVehicle //从CVehicle类派生出自行车类CBicycle
{
protected:
    double height; //添加属性：高度height
public:
    CBicycle(double m, double s, double w, double h) : CVehicle(m, s, w), height(h) {} //初始化参数列表
    void display()                                                                     //打印函数
    {
        cout << "height:" << height << endl;
    }
};

class CMotocar : virtual public CVehicle //从CVehicle类派生出汽车类CMotocar
{
protected:
    int seat_num; //添加属性：座位数seat_num
public:
    CMotocar(double m, double s, double w, int seat) : CVehicle(m, s, w), seat_num(seat) {}
    void display()
    {
        cout << "seat_num:" << seat_num << endl;
    }
};

class CMotocycle : public CBicycle, public CMotocar //从CBicycle和CMotocar派生出摩托车类CMotocycle
{
public:
    CMotocycle(double m, double s, double w, double h, int seat)
        : CVehicle(m, s, w), CBicycle(m, s, w, h), CMotocar(m, s, w, seat) {} //构造函数，初始化参数列表
};

int main()
{
    double m, s, w, h;
    int seat;
    cin >> m >> s >> w;   //第一行：最高速度 速度 重量
    CVehicle v1(m, s, w); //
    cout << "Vehicle:" << endl;
    v1.display();
    cout << endl;

    cin >> h; //第二行：高度
    CBicycle b1(m, s, w, h);
    cout << "Bicycle:" << endl;
    b1.CVehicle::display();
    b1.display();
    cout << endl;

    cin >> seat; //第三行：座位数
    CMotocar m1(m, s, w, seat);
    cout << "Motocar:" << endl;
    m1.CVehicle::display();
    m1.display();
    cout << endl;

    CMotocycle m2(m, s, w, h, seat);
    cout << "Motocycle:" << endl;
    m2.CVehicle::display();
    m2.CBicycle::display();
    m2.CMotocar::display();
    return 0;
}