单片机编程时钟设计，用于初学者学习单片机的初级学习小程序。大家一定要认真学习本例的编写方法，长时间按锻炼C语言，就可以写出好的程序了。-Microcontroller Programmer clock designed for beginners to learn the primary study SCM applet. We must seriously study the preparation method in this case, prolonged exercise by C la