应该如何修改这段代码#include<iostream> #include<string> using namespace std; class Creature { public: Creature(const int& hands, const int& legs):_hands(hands),_legs(legs) {cout << "A Creature has been created!" << endl; cout << "It has " << hands << " hand(s)!" << endl; cout << "It has " << legs << " leg(s)!" << endl;} ~Creature() {cout << "Creature object exiled!" << endl;} int GetHands() const {return _hands;} int GetLegs() const {return _legs;} private: int _hands; int _legs; }; class Beast:virtual public Creature { public: Beast(const int& hands, const int& legs, const string& name) :Creature(hands,legs),_name(name){cout << "Its beast name is " << _name << endl;} ~Beast() {cout << "Beast object exiled!" << endl;} string GetName() const {return _name;} private: string _name; }; class Human:virtual public Creature { public: Human(const int& hands, const int& legs, const string& name):Creature(hands,legs),_name(name) {cout << "Its human name is " << _name << endl;} ~Human() {cout << "Human object exiled!" << endl;} string GetName() const {return _name;} private: string _name; }; class Orc:public Human,public Beast { public: Orc(const int& hands, const int& legs, const string& beast_name, const string& human_name):Creature(hands, legs),Beast(hands,legs,beast_name),Human(hands,legs,human_name){} ~Orc() {cout << "Orc object exiled!" << endl;} string GetBeastName() const {return Beast::GetName();} string GetHumanName() const {return Human::GetName();} };

这段代码本身是没有问题的，但是为了使代码更加易读易懂，可以进行一些调整和优化：

1. 将构造函数中的参数改为 const int& 改为 const int，因为 const int& 对于这个例子来说并没有太大的必要。
2. 将 cout 语句提取为成员函数，这样可以提高代码的复用性和可维护性。
3. 将 GetHands 和 GetLegs 函数改为 inline 函数，可以提高代码的执行效率。
4. 将虚继承改为非虚继承，因为在这个例子中并没有体现出虚继承的优势。

修改后的代码如下：

#include<iostream> 
#include<string> 

using namespace std; 

class Creature { 
public: 
    Creature(int hands, int legs): _hands(hands), _legs(legs) {} 

    int GetHands() const { 
        return _hands; 
    } 

    int GetLegs() const { 
        return _legs; 
    } 

    void Print() const { 
        cout << "A Creature has been created!" << endl; 
        cout << "It has " << GetHands() << " hand(s)!" << endl; 
        cout << "It has " << GetLegs() << " leg(s)!" << endl; 
    } 

private: 
    int _hands; 
    int _legs; 
}; 

class Beast: public Creature { 
public: 
    Beast(int hands, int legs, const string& name) : Creature(hands, legs), _name(name) {} 

    string GetName() const { 
        return _name; 
    } 

    void Print() const { 
        Creature::Print(); 
        cout << "Its beast name is " << GetName() << endl; 
    } 

private: 
    string _name; 
}; 

class Human: public Creature { 
public: 
    Human(int hands, int legs, const string& name): Creature(hands, legs), _name(name) {} 

    string GetName() const { 
        return _name; 
    } 

    void Print() const { 
        Creature::Print(); 
        cout << "Its human name is " << GetName() << endl; 
    } 

private: 
    string _name; 
}; 

class Orc: public Human, public Beast { 
public: 
    Orc(int hands, int legs, const string& beast_name, const string& human_name): Creature(hands, legs), Human(hands, legs, human_name), Beast(hands, legs, beast_name) {} 

    string GetBeastName() const { 
        return Beast::GetName(); 
    } 

    string GetHumanName() const { 
        return Human::GetName(); 
    } 

    void Print() const { 
        Creature::Print(); 
        cout << "Its human name is " << GetHumanName() << endl; 
        cout << "Its beast name is " << GetBeastName() << endl; 
    } 
}; 

int main() { 
    Orc orc(2, 2, "beast", "human"); 
    orc.Print(); 

    return 0; 
}

这样的代码更加易读易懂，也更加符合现代 C++ 的编程规范和风格。