基于89c51和74hc595的32位视觉暂留LED测试代码，keil+proteus开发环境，从9到0循环显示-Based on 89c51 and 32-bit vision 74hc595 temporary stay LED test code, keil+ proteus development environment, from the 9-0 cycle show

提供摇摆LED时钟的亮灭调节，使达到显示时间的效果-POV LED

可实现时钟显示，汉字显示，图像显示（包括电路图）。-Realization of the clock display, Chinese characters display, image display. (including physical production steps, circuit diagram)