19. 指针

#include <iostream>

int main()
{
    using namespace std;
    int updates = 6;
    int *p_updates;
    p_updates = &updates;

    cout << "Values: updates = " << updates;
    cout << ", *p_updates = " << *p_updates << endl;

    cout << "Addresses: &updates = " << &updates;
    cout << ", p_updates = " << p_updates << endl;

    *p_updates = *p_updates + 1;
    cout << "Now updates = " << updates << endl;
}