Use of AI---tinydb

Reads the value of the "namelist" column from the database TinyDB1 and assigns the value to the list variable namelist, and assigns the empty list to the NameList variable if the "namelist" column does not exist in the database.

Determines whether the NameList variable is empty, and if not NULL, iterates through each element and outputs.

Segment is equivalent to the substring () function, but the subscript starts at 1.

Call the Displist procedure to refresh the display data as long as the database changes.