Added "WAL, Backup, and Replication" in Section 9.1.3.
Что думаешь? Оцени!
。whatsapp对此有专业解读
SummaryIf you want to have good performance for your singleton implementation and you need to provide a constructor, you should go for the static data member implementation. In case you can default the default constructor, the two implementation strategies are equivalent performancewise. I would suggest using the block local approach as it saves having to define and initialize the singleton object in an implementation file.。业内人士推荐手游作为进阶阅读
// Apply gravity — only touches vy array