nterview process: 1. The interviewer introduces themselves. 2. Introducing oneself 3. Differences between `new` and `malloc` (nature/principle/size/failure) 4. The three key characteristics of object-oriented programming 5. Where to put the virtual table (constant area) 6. The construction and destruction order of base classes and subclasses: construction proceeds from the base class to the subclass, while destruction proceeds in the opposite order.