《指针》

#include<cstdio>
using namespace std;
int main()
{
    int a[10] = {1,2,3,4,5,6,7,8,9,10};
    int *p;
    p = a;
    printf("%d\n",*(a + 2));
    printf("%d\n",*(p + 2));// *(p + 2) 等同于 *(a + 2)
    return 0;
}