智能指针原理代码

template<class T>
class pmy
{
public:
    pmy()
    {
 
    }
    pmy(T *t)
    {
        p = t;
    }
    ~pmy()
    {
        if (p != nullptr)
        {
            delete p;
        }
    }
    //T operator *()
    //{
    //    return *p;
    //}
 
private:
    T *p = nullptr;
};
 
class Test
{
public:
    Test()
    {
        cout << "Test  create" << endl;
    }
    ~Test()
    {
        cout << "Test delete" << endl;
    }
};
 
void run()
{
    pmy<Test> p =new Test; //p是Test的一个指针.因为把Test替换成T.
}
 
void main()
{
    run();
    cin.get();
 
}