这个文件让大家学习单片机的各种学习资料，非常适合初学者学习，为大家提供各种单片机的不同特点，方便大家学习单片机的种类和方法，很全面的-This file allows you to learn a variety of learning materials SCM is very suitable for beginners to learn, provide a variety of different characteristics of the microcontroller, facilitate learning and methods of the type of microcontroller, very comprehensive