资 源 简 介
键盘状态扫描函数
/*
键盘扫描函数
读取当前键盘的状态
有按键按下返回相应按键值
无按键按下返回"0x00"
*/
-Keyboard status scan function/* keyboard scan function to read the current state of the keyboard keys have a corresponding button press to return to the value of non-button press to return to
