说明：  最新最全的二条码编码资料大全，全面介绍如何制作PDF417、QrCode、DataMatrix、Hanxin等条码制作方法，有详细图文说明，有了此文档，编码无忧。
(The latest and most complete the two yards encoding information Daquan, comprehensive introduction to how to make the PDF417, QrCode, DataMatrix, Hanxin barcode production methods, with detailed captions, this document encoding worry-free.)