刚购买的51单片机sch原理图和c语言程序，里面有详细的电路原理图和c语言程序，自己做单片机学习班的可以下载来参考-Just purchased 51 Singlechip sch schematic and c language program, which has a detailed circuit schematic diagram and c language program, to do their own single-chip learning classes can be do