Dart- 클래스
class Player { final String name; String team; int xp, age; // named constructor 1 Player({ // Dart에서 권장되는 Key:Value 쌍을 이용한 named constructor required this.name, required this.xp, required this.team, required this.age,}); // named constructor 2 Player.createBluePlayer({ required String name, required int age, }) : this.age = age, this.name = name, this.team = 'blue', this.xp = 0; // named constr..