QR码扫描仪是一个二维条码,通过智能手机是可读
A QR Code Scanner is a two-dimensional bar code that is readable by smart phones. It allows to encode over 4000 characters in a two dimensional bar code. QR Codes may be used to display text to the user, to open a URL, Share a contact to the whatsapp or to compose text messages and Copy URL. "QR Code Scanner" is a registered trademark of DENSO WAVE INCORPORATED.