指向类错误的无效指针

Question

class Hero
{
public:
    Hero();
    virtual int useAbility(){}
    virtual int basicAttack(){}
    int getHitPoints();
    int getManaPoints();
    void setHitPoints(int x);
    void setManaPoints(int x);
protected:
    unsigned int hitPoints;
    unsigned int manaPoints;
private:
    friend void printHero();

};

class Mage : public Hero
{
public:
    Mage();
    int useAbility();
    int basicAttack();
    std::string getClassName();
protected:
private:
    std::string className;

};

战士也一样

int input;
void *actor;
cin >> input;
if(input == 1) actor = new Warrior;
if(input == 2) actor = new Mage;
printHero(actor.getClassName(),actor.getHitPoints(),actor.getManaPoints());

所以我声明了指针'actor'，我希望它成为一个类的指针，但显然它不起作用。

我收到此错误

对'actor'中的成员'getClassName'的请求，它是非类类型'void*'

Answer 1

战士和法师都有父类人。

你想做什么：

person *actor;