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) 0 E L$ }, ~. D8 T( d1 kFME-7是一块声音芯片,说明如下: - }1 u, [* J% i( G# o2 P& d6 GThe 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