说明：  EAN-13条形码已经广泛应用于商品零售领域，但是其传统的光电识别方法在条形码图像质量不佳时不能准确识读条码的信息,需要使用手动输入的方式。
(EAN-13 bar code has been widely used in retail areas, but its traditional identification methods photoelectric poor quality images in the bar code can not accurately read bar code information, you need a way to manually enter.)