What to do if you delete the data by mistake ?

Ans:

To prevent accidental deletion of data, some software services ( e.g. Gmail, Drive...) have a 'trash can' mechanism. Users can 'restore' them in the trash if delete the data by mistake.

However, if the accidentally deleted service data does not have a trash can or has been permanently deleted from the trash, the Computer and Network Center cannot assist in the rescue as the service was not built by the center. Please be cautious and backup your data regularly.