现有动物类Animal，包含名称name和年龄age数据成员，返回年龄GetAge、显示信息Showhe。由动物类派生出羊类Sheep和驼类Camel，前者增加重量、后者增加品种两个数据成员,都有显示信息的函数。羊驼类Alpace由羊类Sheep和驼类Camel公派生而来，定义各个类并在主函数内定义对象测试相关功能。

好的，我明白了。以下是对应的代码：

#include <iostream>
#include <string>
using namespace std;

// 定义动物类Animal
class Animal {
protected:
    string name;    // 名称
    int age;        // 年龄
public:
    Animal(string name_, int age_) : name(name_), age(age_) {}
    int GetAge() { return age; }
    void Showhe() { cout << "Name: " << name << ", Age: " << age << endl; }
};

// 定义羊类Sheep
class Sheep : public Animal {
private:
    float weight;   // 重量
public:
    Sheep(string name_, int age_, float weight_) : Animal(name_, age_), weight(weight_) {}
    void Showhe() { cout << "Name: " << name << ", Age: " << age << ", Weight: " << weight << endl; }
};

// 定义驼类Camel
class Camel : public Animal {
private:
    string breed;   // 品种
public:
    Camel(string name_, int age_, string breed_) : Animal(name_, age_), breed(breed_) {}
    void Showhe() { cout << "Name: " << name << ", Age: " << age << ", Breed: " << breed << endl; }
};

// 定义羊驼类Alpace
class Alpace : public Sheep, public Camel {
public:
    Alpace(string name_, int age_, float weight_, string breed_) : Sheep(name_, age_, weight_), Camel(name_, age_, breed_), Animal(name_, age_) {}
    void Showhe() { cout << "Name: " << name << ", Age: " << age << ", Weight: " << Sheep::weight << ", Breed: " << Camel::breed << endl; }
};

int main() {
    Sheep sheep("Mary", 2, 35.5);
    Camel camel("Lucy", 5, "Bactrian");
    Alpace alpace("Tom", 3, 40.2, "Hybrid");

    sheep.Showhe();
    camel.Showhe();
    alpace.Showhe();

    return 0;
}

这里我们通过继承实现了羊类Sheep，驼类Camel和羊驼类Alpace，并且它们都可以输出自己的信息。在主函数中，我们定义了三个对象分别测试它们的功能。