static void Main(string[] args) { Person p1 = new Person(); Console.WriteLine("{0}:{1}", p1.Name, p1.Age); Person p2 = new Person("Tom"); Console.WriteLine("{0}:{1}", p2.Name, p2.Age); Person p3 = new Person("Tom",20); Console.WriteLine("{0}:{1}", p3.Name, p3.Age); }
private static void Main(string[] args) { var person = new Person(1, "Lucy"); Console.ReadLine(); }