Haven't got a Chinese editor with me, and have to use English today.
1. In SQL 2000 and SQL 7, there is Data Transformation Services (DTS) facility
which you can use to import / export data.
2. DTS can be packaged (打包), and scheduled to run as a regular job.
3. If you only want to export / import data (SQL - text file) as a one-off job,
you can actually just use the Data Import/Export Wizard.
To do that, in Enterprise Manager:
select an item (eg, table or view)-> right click -> All tasks ->
import data or export data ->choose data source, destination (text file name)
->......
This is the standard MS Wizard, and should be easy to follow.
Note: Suggest you doing a backup before data transport.
Good Luck