如果你的产品没有条形码，想要自己打印条形码的话，请注意以下几点。
- 你的条形码打印机可以打印 EAN-8 或者 EAN-13格式.
- 如果你的条形码的尺寸比较小的话，请打印 EAN-8格式，不然的话由于条形码尺寸比价小，打印出来的标签模糊导致扫码枪会扫不出来。
If your product does not have a barcode and you want to print one yourself, please note the following:
Your barcode printer can print in either EAN-8 or EAN-13 formats.
If the barcode is small in size, use the EAN-8 format. Otherwise, the printed label may become blurry due to the small size, and scanners might not be able to read it.
