Delete objects
Log on to the OSS console.
In the left-side navigation pane, click Buckets. On the Buckets page, click the name of the bucket in which the objects you want to delete are stored.
In the left-side navigation pane, click Files.
Select one or more objects that you want to delete in the object list, and then choose Batch Operation > Delete. You can also choose More > Completely Delete in the Actions column corresponding to the object you want to delete.
In the dialog box that appears, click OK.