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代打印upc-12 ean-13条形码标签纸code128b code39 itf14 ucc条码
在maven的配置文件中添加zxing和dynamsoft barcode reader:
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)
以upc码为例,本质上就是三十条粗细不一的黑线.
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