本人闲来无事，用c语言编写的基于stc89c52单片机开发板制作了一个音乐盒，共四首歌，可以按键选择播放不同歌曲，程序中有注释，特别适合处学者。-I have nothing else, c language based on stc89c52 MCU development board produced a music box, a total of four songs, keys to select to play different songs, and the program anno