编辑代码

#include <iostream>
using namespace std;

void prt (int *aa)//aa是指针
{
    *aa = 5;
    cout << *aa << endl;
    aa++; 
    cout << aa << endl;
    cout << &aa << endl;
    printf("\n");
}
void prt1 (int * &aa)//aa是引用，也就是别名
{
    *aa = 5;
    cout << *aa << endl;
    cout << aa << endl;
    cout << &aa << endl;
    printf("\n");
}

int main()
{
    int m = 3;
    int *a = &m;
    prt(a);
    prt1(a);
    cout << m << endl;
    cout << a << endl;
    cout << &a << endl;
    system("pause");
    return 0;
}