upc码(商品条码),code39码(可表示数字和字母,在管理领域应用最广)
product code),通常简称upc码,是美国均匀码理事会(uniform code
条形码是由美国和加拿大共同组织的"统一编码委员会"(universal code
zxing-cpp) upc(universal product code)码是最早大规模应用的
wired scanner reader 32bit portable usb cable a4 bar code for
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