Seeing this, many people find it incredible

Seeing this, many people find it incredible, because the area of the QR code itself is not very large, just a small piece. In this small area, why can the QR code be used all the time but not consumed? Is there an identical QR code in it? Another is whether the QR code might run out in the future?

In response to these questions, we will answer them one by one.

First, is there a QR code that is exactly the same in the world?

At present, the application fields of QR codes are very wide. Many companies will generate QR codes themselves. Among these QR codes, if they are generated by two different systems, is it possible that the QR codes are exactly the same?

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Seeing this, many people find it incredible

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