A QR code yog hom matrix barcode tsim nyob rau hauv 1994 los ntawm Japanese tsheb tuam txhab Denso Wave. Lub barcode yog lub tshuab nyeem tau kho qhov muag uas muaj cov ntaub ntawv hais txog cov khoom uas nws txuas nrog.
Tus nyeem QR code ua li cas?
A QR nyeem ntawv tuaj yeem txheeb xyuas tus qauv QR code raws li peb qhov loj squares sab nraum QR code. Thaum nws tau txheeb xyuas peb cov duab no, nws paub tias txhua yam muaj nyob hauv lub xwmfab yog QR code. Tus nyeem QR ces tshuaj xyuas QR code los ntawm kev rhuav tshem tag nrho cov khoom mus rau ib daim phiaj.
QR code yog dab tsi thiab nws ua haujlwm li cas?
QR Code ua haujlwm li cas? Yeej, QR code ua haujlwm tib yam li barcode ntawm lub tsev loj. Nws yog lub tshuab-scannable duab uas tuaj yeem nyeem tau tam sim siv lub koob yees duab Smartphone. Txhua QR code muaj ib tug xov tooj ntawm cov squares dub thiab dots uas sawv cev rau tej yam ntaub ntawv.
Kuv lub xov tooj puas muaj QR nyeem ntawv?
Android tsis muaj tus nyeem QR code built-in, yog li koj yuav tsum rub tawm lub app thib peb thiab ua raws nws cov lus qhia. Txhawm rau luam theej duab QR code, koj xav tau lub xov tooj smartphone nrog lub koob yees duab thiab, feem ntau, lub xov tooj ntawm tes.
Kuv puas xav tau QR code?
Ntau lub lag luam thiab cov koom haum yuav tsum muaj NSW Tsoomfwv QR code kom cov neeg ua haujlwm thiab cov neeg siv khoom tuaj yeem tshawb xyuas siv Service NSW app.
