程序代码：

#include <iostream>
#include <stdlib.h>
using namespace std;
class Obj
{
    public:
    Obj(void)
    {
        cout<<"Initialization"<<endl;
    }
    ~Obj(void)
    {
        cout<<"Destroy"<<endl;
    }
    void In(void)
    {
        cout<<"In"<<endl;
    }
    void Destroy(void)
    {
        cout<<"Destroy"<<endl;
    }

};
    void UseMallocFree(void)
    {
        Obj *a=(Obj *)malloc(sizeof(Obj));
        a->In();
        a->Destroy();
        free(a);
    }
    void UseNewDelete(void)
    {
        Obj *a=new Obj;
        delete a;
    }
int main()
{

    Obj obj;    //
    UseMallocFree();
    UseNewDelete();
}