对带LED显示的非接触IC卡读写器的控制，寻卡、读取卡片的物理序列号、核对密钥、读卡、写卡，通过LED数码管显示卡号等信息。-With LED display on the non-contact IC card reader control, look for cards, the card reader physical serial number, check the key, card reader, writing cards, through the LED digital disp