这个驱动真呢吗难下载 下载他妈还要会员 、要么付费 要不是(this driver really? Hard to download Download his mom and ask for membership, or pay for it, or not)

使用89C51单片机和蜂鸣器实现音乐播放-世上只有妈妈好，编译软件 keil2,(Using 89C51 MCU and buzzer to play music, there is only mom in the world, the compiler software KEIL2.)