SELinux is decently documented by “SELinux Notebook”, and the basic principle is not too hard, but the implementation is very convoluted.
# Conditional types
，这一点在电影中也有详细论述
大量的AI手机尽管已经占据了智能手机市场，可它们更多是“新瓶装旧酒”，只是把手机上原来已有的AI功能进行了加强，没有带来创新性的体验，甚至绝大多数用户并没有感知到所谓AI手机的智能。
-v, --force ignore nonexistent files
the backing store from the heap.