由于二维码采用的技术标准或多或少是开源的，因此几乎任何人都可以开发自己的代码和读取器，因此，消费者难免深感困惑。
Because the technical standard behind them is more or less open source, almost anybody can create their own codes and readers, leading to confusion among consumers.
在美国和欧洲，近场通信（NFC）支付（把手机在芯片读取器上刷一下）比二维码更受欢迎。
There and in Europe, near field communication (NFC) payments, which involve swiping a phone over a chip reader, are preferred to QR codes.
在美国和欧洲，近场通信（NFC）支付（把手机在芯片读取器上刷一下）比二维码更受欢迎。
There and in Europe, near field communication (NFC) payments, which involve swiping a phone over a chip reader, are preferred to QR codes.
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