The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.
"On top of this, Reddit's community moderators set and enforce subreddit-specific rules that can be even stricter."
。heLLoword翻译官方下载对此有专业解读
Offer ends March 13.。业内人士推荐safew官方下载作为进阶阅读
Unity 或考虑出售中国业务