初学者一个关于类的问题

编译,链接都没有问题.没有得到想要结果,我找不出错在哪,请大家帮看看
头文件

# include <string>
using namespace std;
# include <iostream>
# include <vector>
class Animal
{
public:
    Animal (const char*n): name(n) {}
    virtual ~Animal() {}
    virtual void read ()=0;
protected:
    string name;
};
class Panda:public Animal
{
    friend class Zoo;
public:
    Panda (const char*n): Animal(n) {}
    void read ()
    {
        cout<<"name "<<name<<"     "
            <<"speices panda"<<endl;
    }

};

class Tiger:public Animal
{
    friend class Zoo;
public:
Tiger (const char*n): Animal(n) {}
    void read ()
    {
        cout<<"name "<<name<<"     "
            <<"speices tiger"<<endl;
    }
};

class Monkey:public Animal
{
    friend class Zoo;
public:
Monkey (const char*n): Animal(n) {}
    void read ()
    {
        cout<<"name "<<name<<"     "
            <<"speices monkey"<<endl;
    }
};

class Zoo
{
public:
    Zoo(): contain(0) {}
    Zoo(int c): contain(c), room(c){}
    void ListAnimals();
    int Accept(Animal*);
    void Release (int);
    ~Zoo();
private:
    int contain;
    vector<Animal*> room;

};
==================================================
# include "Animal.h"
using namespace std;

int Zoo::Accept(Animal* one)
{
    vector<Animal*>::size_type i=0;
    Animal* record =one;
    room.push_back(record);
    i = room.size();
    return i;
}
void Zoo::Release(int p)
{
    room[p] = 0;
}
void Zoo::ListAnimals()
{
    int count = 0;
    for(int i=0;i<contain;++i)
    {
        if(room[i] != 0)
        {
            room[i]->read;
            cout<<"position "<<i<<endl;
            ++count;
        }

    }
    cout<<"toatl animals are "<<count<<endl;
}

Zoo::~Zoo()
{
    for(int j=0;j<contain;++j)
    {
        if(room[j]!=0)
        {
            delete room[j];
        }
    }
}
# include "Animal.h"
using namespace std;

int main()
{
   Panda p[1]={Panda("Rudy")};
   Tiger t[2]={Tiger("Sam"),Tiger("Princess")};
   Monkey m[3]={Monkey("Nancy"),Monkey("CaroLine"),Monkey("Bob")};

   Zoo Z(10);               //初始化动物园对象，其最多可饲养10只动物，缺省饲养了0只动物
   for(int i=0;i<2;i++)
   {
       Z.Accept(&t[i]);     //向动物园移入要饲养的动物，并返回该动物所在的位置
       Z.Accept(&m[i]);
   }
   int position=Z.Accept(&p[1]); 
   Z.ListAnimals();         //列出动物园当前饲养了多少只动物, 每只动物所在的位置及其种类和姓名
   Z.Release(position);     //从动物园移走指定位置的动物
   Z.ListAnimals();
   Z.Accept(&m[2]);
   Z.ListAnimals();
   return 0;
}