Any program is information collection, processing, storage, feedback

Any program is information collection, processing, storage, feedback

1. Entry selection, data collection (who is authorized)

2 data processing, filter out what to use (information filtering, permissions who to deal with, which portal to which to deal with)

3 Data Storage (1) Save to database

(2) Save to the information pool sent to the front end, not collected into the database in the background

Understanding of the database

For the general procedure, increase to one, delete as one, check for one.

As far as data is concerned, it is useful for data to be deleted as one is that the current data cannot be guaranteed to express the facts, and to obtain useful existing data.

Any program is information collection, processing, storage, feedback