说明：  MCS-51单片机简述MCS51是指由美国INTEL公司（对了，就是大名鼎鼎的INTEL）生产的一系列单片机的总称，
(MCS-51 single-chip MCS51 briefly refers to the United States INTEL Corporation (yes, that is, the well-known INTEL) produced by the general term for a series of single-chip,)