说明：  键盘数码管显示芯片TM1637的驱动程序，处理基本的底层驱动，还包含一些基本的显示函数和按键采集计算等函数，包括按键的按下弹起以及长按的处理部分。
(The keyboard digital tube displays the driver of the chip TM1637, handles the basic underlying driver, and includes some basic display functions and key collection and calculation functions, including the pressing of the button and the processing part of the long press.)