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)
p>upc是指uniform plumbing code,统一 a target="_blank" href="
通用商品代码 (upc)universal product code,很多新手卖家第一次听到
测试结果如下:github:https://github.com/fengbingchun/barcode_test
代打印upc-12 ean-13条形码标签纸code128b code39 itf14 ucc条码
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