Bar code is a graphic identifier that arranges a number of black bars and blanks with different widths according to certain coding rules to represent a group of information. Common bar codes are parallel lines composed of black bars (referred to as bars) and white bars (referred to as spaces) with great differences in reflectivity. Barcode can indicate the country of production, manufacturer, commodity name, production date, book classification number, starting and ending place, category and mailing date, and so on, so it has been widely used in many fields such as commodity circulation, book management, postal management, banking system and so on.

For example, access cards also belong to electronic tags. Electronic tags and bar codes are used to transmit data, and they are mutually inclusive. Some bar codes are also electronic labels.

The above picture belongs to the electronic label, and there is a barcode in it. When making this electronic tag, when we draw a one-dimensional bar code, click the one-dimensional bar code in the toolbar on the left, draw a one-dimensional bar code on the canvas, and fill in the correct content of the bar code.