#include#includeusing namespace std;class Vehicle{public:\x0

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#include
#include
using namespace std;
class Vehicle{
public:
\x05virtual void showinfo()=0;
protected:
\x05char Name[20];
};
class Car:public Vehicle{
public:
\x05Car(char *name)
\x05{
\x05\x05strcpy(Name,name);
\x05}
\x05void showinfo(){cout

$#include#includeusing namespace std;class Vehicle{public:\x0$

vp = &car;                 //将vp指向car
vp -> showinfo();          //通过vp调用成员函数showinfo(),相当于car.showinfo()
vp = &truck;               //将vp指向truck
vp -> showinfo();          //通过vp调用成员函数showinfo(),相当于truck.showinfo()
vp = &boat;                //将vp指向boat
vp -> showinfo();          //通过vp调用成员函数showinfo(),相当于boat.showinfo()