目录Java内存模型（JMM）JMM定义的关键概念Java提供的同步机制主要的同步机制锁机制内置锁（Synchronized Locks）显式锁（Explicit Locks）JMM和锁机制的关系总的来说Java内存模型（Java Me
As a relative newcomer to 开发者_运维问答MFC, I see Device Contexts (DCs) a lot. I vaguely understand that it\'s something to do with drawing, but the specifics are not very well explained anywhere th
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