这里是用单片机编程的时候经常会用到的一些电子小软件.比如：计算波特率、数码管的计算、电容电感和电阻等的计算等~！·-Here is when the MCU programming is often used in a number of electronic small piece of software. For example: calculating baud rate, the digital control calculations, capacitance inductance and resistance calculation, etc. ~!*