第五周项目程序阅读一

#include <iostream>using namespace std;class base{private :    int m ;public  :    base () {};    base(int m){this->m=m;}    int get () {return m;}    void set (int m){this->m=m;}};// base_endint main (){    base *ptr;    ptr=new base[2];    ptr->set(30);    ptr=ptr+1;    ptr->set(50);    base a[2]={1,9};    cout<<a[0].get()<<","<<a[1].get()<<endl;    cout<<ptr->get()<<",";    ptr=ptr-1;    cout<<ptr->get()<<endl;    delete[]ptr;    return 0;}