类的引用类型成员

From http://blog.csdn.net/hello_shadow/article/details/7007383

#include <iostream>
using namespace std;
class Object
{
    int &count;
    public:
        Object(int &cou):count(cou){};
        //如果函数为Object(int cou)则count引用了形参。
        ~Object(){};
        void SetValue(int cou)
        {
            count=cou;
        }
        void Display()
        {
            cout<<"the value of count in Object:"<<count<<endl;
            cout<<"the address of count in main:"<<&count<<endl;
        }
};

int main()
{
    int count=10;;
    Object obj(count);
    obj.SetValue(9);
    obj.Display();
    cout<<"the value of count in main:"<<count<<endl;
    cout<<"the address of count in main:"<<&count<<endl;
    return 0;
}