Singlechipmicrocomputerandapplication

说明：  张毅坤的单片微型计算机及应用，一本经典的学习51单片机的教材，这里是PPT课件，可用来自学
(张毅坤and the single-chip micro-computer applications, a classic single-chip microcomputer 51 of the study materials, PPT here courseware, available from the school)