Question

c++程序设计

设计一个汽车类vehicle包含的数据成员有车轮个数wheels和车重weight，小车类car是它的派生类，包含载人数passenger_load每个类都有相关的数据输出方法。在主程序中定义一个car类对象，对其车轮个球，车重，载人数进行设置并显示

Answer 1

#include <iostream>
using namespace std;
class vehicle
{
    public:
         int wheels;
         int weight;
         
         void output()
         {
             cout<<"wheels:"<<wheels<<endl<<"weight:"<<weight<<endl;
         }
};

class car : public vehicle
{
   public:
       int passenger_load;
       void output()
       {
           cout<<"passenger_load:"<<passenger_load<<endl;
           vehicle::output();
       }
};

int main()
{
       car c;
       c.wheels=4;
       c.weight=20;
       c.passenger_load=20;
       c.output();
       return 0;
}