thank you fort reponse my solution simple
type Person = object
nom: string prenom: string age: int
var personList = newSeq[Person]()
personList.add(Person(nom: "Koch", prenom:"karl", age: 23))
personList.add(Person(nom: "Pan", prenom:"Peter", age: 12))
echo personList[1].nom
personList.add(Person(nom: "Moranne", prenom:"Bob", age: 30))
echo personList[2]
for i, value in personList:
echo "index: ", $i, ", value:", $value
etc... thank you
