using System; using System.Collections.Generic; using System.Diagnostics; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Model { internal class System { public bool theme_color = true; HashSet listeAnimaux = new HashSet(); //HashSet listeAnimaux = new HashSet(); public System() { } public void ChangeColor() { if (theme_color == true) theme_color = false; else theme_color = true; } public void RechercheAnimal(string nom) { if (nom == null) { Console.WriteLine("Aucun animal ne s'appelle " + nom); return; } } public void Retour() { //num_page = num_page - 1; } } }