1. Click the solid A button of the label printing software, draw an ordinary text object on the canvas, double-click the ordinary text, in the graphic properties-data source, click the modify button to delete the default data, as shown below Manually enter the information to be added in the status box and click Edit.

2. Click the button, select "Sequence Generation" as the data object type, set the starting string to 1, and click Edit.

3. Click the button in the processing method on the right, select Fill in the processing method type, the target length is 3, the fill character is 0, and click Edit to confirm.