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qr_code.pdf.tar
- 这本书介绍了二维码的编程流程,供初学者参考-This book describes the two-dimensional code programming process, the reference for beginners
paper1
- QR二维码相关技术的研究_于英政.PDF,很好的关于二维码的文章-Research related art two-dimensional code QR _ in British politics (1)