def removeKeyButtonEvent(self, buttons= [] ):
        """!
        \~english
        Remove key button event callbacks
        @param buttons: an array of button Ids. eg. [ 12,13,15, ...]

        \~chinese
        移除按键事件回调
        @param buttons: 按钮ID数组。 例如: [12,13,15，...]
        """
        for i in range( 0, len(buttons)-1 ):
            GPIO.remove_event_detect( buttons[i] )