internal关键词用于限定成员变量访问范围(没记错的话,C++太久没看了), [- P: _: F" ?& f1 a3 A; q
FME-7是一块声音芯片,说明如下: ! a( N# ~7 E$ C& J: z0 CThe FME-7 was made by Sunsoft and used as an extension soundchip in Nintendo Famicom / NES Games. It was only used in a single Sunsoft Game (Gimmick!) and is otherwise known as the Mapper 69