He was talking about the Db directory that the teacher talked about at about 8 minutes and 19 seconds. There is no Db directory in the vendor\topthink\framework\src\think directory, and there is no Db directory in my TP6. There is a db.php file in the vendor\topthink\framework\src\think directory, but the content of this file is different from the db.php file demonstrated by the teacher at about 7 minutes and 50 minutes. I really don’t know if the teacher’s environment has changed.
