C 数组下标计算

int  main(int argc,char * argv[])
{
    int arry[] = { 1,2,3 };
    //大小下标计算 (int)arry+sizeof(int)*n
    arry[2] = 30;

    printf("%x", &arry[2]);
    printf("%x", (int)arry + sizeof(int)*2);

    printf("%x", &arry[argc]);
    printf("%x", (int)arry + sizeof(int)*argc);

    printf("%x", &arry[argc /3]);
    printf("%x", (int)arry + sizeof(int)*(argc /3));
    return 0;
}