Data Matrix Code 数据矩阵码 ; 二维条码
Read Data Matrix Code 读取数据矩阵二维码
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In America and Europe, three types of bar code, called QR code, Data Matrix and Ezcode, are likely to become common. The first two are free, open standards.
在美国和欧洲，有三种条形码很有可能会普及，它们分别是QR码，Data Matrix和Ezcode。前两种是免费使用和标准公开的。
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But the black matrix bar code symbols have become a harbor for malicious code writers who devise ways to steal personal data.
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