无效类错误指针

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; 

};

同为战士

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()); 

所以我宣布指针“演员”，我希望它成为一个指向一类，但显然这是行不通的。

我得到这个错误

请求成员调用“GetClassName”的“演员”，这是无级式“无效*”的

Answer 1

战士和法师有父类人。

你想做的事：

person *actor;