//指针数组
int main()
{
    int a = 10;
    int b = 20;
    int c = 30;
//    int *pa = &a;
//    int *pb = &b;
//    int *pc = &c;
    int *arr[3] = {&a,&b,&c};
    int i =0;
    for (i = 0; i < 3; ++i) {
        printf("%d\n",*(arr[i]));
    }
    return 0;
}