| 摘要 |
A data column management system could be used for receiving an adding data column request to add a data column to an electronic document, and for receiving deleting data column request to delete a data column of the electronic document. The data column management system comprises a column data accessing module, an adding module, and a deleting module. The column data accessing module is used for accessing the serial number of a last data column of the electronic document to get a last serial number, and for accessing the format of the data column to get a format data. The adding module is used for adding an adding data column into the electronic document according to the adding data column request, the format data, and the last serial number. The format of the adding data column is the same with the data column. The serial number of the adding data column is the last serial plus one. The deleting module is used for deleting any one of the data columns of the electronic document according to the deleting request. The serial numbers of the data columns after the deleted data column are subtracted one.
|
