51单片机控制点阵汉字显示，适合初学者研究程序以及电路设计。需要用到Proteus 7 Professional画原理图。（内含原理图）-51 single-chip microcomputer control dot matrix characters display, is suitable for beginners the research procedure and circuit design. Need to use Proteus 7 Professional painting principle diagram. (containing principle chart)