If necessary, you can also add attribute information to the attribute table. The specific operation is: open the property page in non-editing state, click the option button, select the add field option, and add a field. The setting of the field can be set to character type, long integer type, integer type, floating point type and so on according to the attribute. Then start editing in the editor, and set the layer to be edited as editable, so that the attribute data can be added to the attribute table.

If you already have a dbf table of the attribute data table, you can add it to the current workspace, then right-click the layer and choose Tools Connect and Associate to Associated Attribute Table.