cur = conn.cursor()
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.
。雷电模拟器官方版本下载对此有专业解读
FT Edit: Access on iOS and web。业内人士推荐Line官方版本下载作为进阶阅读
后来，她谈过3个男友，3个男友都给她钱花，又出去玩，每次都被她知道，前两次，她还会心痛，到最后一次，她彻底心灰。“遇到的人都很爱玩，不是不爱你，爱你他还要搂别的女孩。婚姻就是一张纸，真爱不用结婚，婚姻没有安全感，钱和工作才有安全感。”