单个按键的长按、短按、多击、无击等功能，实现分页显示-A single button press, press, multi-strike, no strike, etc.

给予STM32和RFID的门禁管理系统，长按取消键删除档案，长按确认键添加档案，长按上键清除所有档案，长按下键读出所有档案。-Access control system with STM32 and RFID, press the Cancel button to delete the file, press the confirm button to add files, long press the button to remove all files, long press the key

按键处理驱动，处理了 单按键，多按键，长按，短按，持续按等功能(Key processing driver, processing single button, multi button, long press, short press, continuous press and other functions)