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CLayoutSubClass1 *lsc = new CLayoutSubClass1;
int *ptr = (int*)lsc;
//std::cout << "vbc in CLayoutSubClass1 is " << *(int*)(ptr[3]) << std::endl;
std::cout << "vbc in CLayoutSubClass1 is " << *(int*)(ptr+3) << std::endl;
上面代码中的ptr[3]与ptr+3等同吗?