接口 IEAN8

所有超级接口:
IBarcode, IFontOption, ILabelOption

public interface IEAN8 extends IFontOption, IBarcode, ILabelOption
EAN-8 barcode is a barcode that uses only numeric characters and a check digit. This barcode accepts only seven numbers as a string to calculate a check digit (CheckSum) and add it to the eighth position.