/*长期的物种进化使两栖动物既能活跃在陆地上，又能游动于水中。利用虚基类建立一个类的多重继承，包括动物(animal，属性有体长，体重和性别)，陆生动物(ter_animal，属性增加了奔跑速度)，水生动物(aqu_animal，属性增加了游泳速度)和两栖动物(amp_animal)。其中两栖动物保留了陆生动物和水生动物的属性。Input两栖动物的体长，体重，性别，游泳速度，奔跑速度(running_speed)Output初始化的两栖动物的体长，体重，性别，游泳速度，奔跑速度(running_speed)和输入的两栖动物的体长，体重，性别，游泳速度，奔跑速度(running_speed)*/#include <iostream>using namespace std;class animal{protected:    int height;      int weight;      char sex;   public:    animal(){}    animal(int h,int w,char s):        height(h),weight(w),sex(s){}};class aqu_animal:virtual public animal  {protected:    int swimming_speed;  public:    aqu_animal(){}    aqu_animal(int h,int w,char s,int s_p):        animal(h,w,s),swimming_speed(s_p){}};class ter_animal:virtual public animal{protected:    int running_speed;public:    ter_animal(){}    ter_animal(int h,int w,char s,int r_p):animal(h,w,s),running_speed(r_p) {}};class amp_animal:public aqu_animal,public ter_animal{public:    amp_animal(){}    amp_animal(int h,int w,char s,int s_p,int r_p):animal(h,w,s),aqu_animal(h,w,s,s_p),ter_animal(h,w,s,r_p){}    void input()        cin>>height>>weight>>sex>>swimming_speed>>running_speed;    void show()    {        cout<<"height:"<<height<<endl;        cout<<"weight:"<<weight<<endl;        cout<<"sex:"<<sex<<endl;        cout<<"swimming_speed:"<<swimming_speed<<endl;        cout<<"running_speed:"<<running_speed<<endl;    }};int main(){   amp_animal a1(50,20,'m',100,120);    amp_animal a2;    a2.input();    a1.show();    cout<<endl;    a2.show();    return 0;}