双色点阵屏模拟电梯上下行的源码程序，STC单片机，内有各接口的定义，学习双色点阵和了解电梯上下行图标的原理是最好不过了。-The elevator up and down rows of two-color dot matrix screen analog source program, STC microcontroller within the definition of each interface, learning the principles of two-color dot mat