Problem G: 交通工具信息
Time Limit: 1 Sec Memory Limit: 128 MBSubmit: 459 Solved: 231
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Description
有一个交通工具类vehicle,将它为 基类派生的有派生小车类car,卡车类truck和轮船类boat,定义这些类,并使其能够显示其各类交通工具的详细信息。
他们包含的信息,有如下几种:
1.名字 -----与输入的名字相符合
2.时速(km/h) -----最高时速
3.耗油量(L/100km) -----在经济时速下测得耗油量
小车类:
250km/h
14.8 L/100km
卡车类:
140km/h
18L/100km
轮船类:
50km/h
8.33L/100km
Input
输入三个派生类对应名字。
Output
输出对应类型的信息。
Sample Input
Mercedes_Benz
Transport_truck
Boat
Sample Output
Mercedes_Benz
250km/h
14.8L/100km
Transport_truck
140km/h
18L/100km
Boat
50km/h
8.33L/100km
HINT
提交的时候请把主函数加上:
int main(){
Vehicle *vp;
string name0,name1,name2;
cin>>name0;
Car car(name0);
cin>>name1;
Truck truck(name1);
cin>>name2;
Boat boat(name2);
vp=&car;
vp->showinfo ();
vp=&truck;
vp->showinfo ();
vp=&boat;
vp->showinfo ();
return 0;
}
输入名字的顺序与对应的类顺序一致,你需要把给出的名字赋给类。
#include <iostream>
using namespace std;
class Vehicle
{
public:
virtual void showinfo()const=0;
};
class Car: public Vehicle
{
public:
Car(string cc):c(cc) {}
virtual void showinfo () const
{
cout<<c<<endl;
cout<<"250km/h"<<endl;
cout<<"14.8L/100km"<<endl;
}
private:
string c;
};
class Truck: public Vehicle
{
public:
Truck(string tt):t(tt) {}
virtual void showinfo () const
{
cout<<t<<endl;
cout<<"140km/h"<<endl;
cout<<"18L/100km"<<endl;
}
private:
string t;
};
class Boat: public Vehicle
{
public:
Boat(string bb):b(bb) {}
virtual void showinfo () const
{
cout<<b<<endl;
cout<<"50km/h"<<endl;
cout<<"8.33L/100km"<<endl;
}
private:
string b;
};
int main()
{
Vehicle *vp;
string name0,name1,name2;
cin>>name0;
Car car(name0);
cin>>name1;
Truck truck(name1);
cin>>name2;
Boat boat(name2);
vp=&car;
vp->showinfo ();
vp=&truck;
vp->showinfo ();
vp=&boat;
vp->showinfo ();
return 0;
}