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 j& g1 A+ j5 T
FME-7是一块声音芯片,说明如下: , e% Q0 d" ?8 w; Y8 vThe 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