static void Main(string[] args) { var p = new Person { name = "Mike", age = 27 }; var p2 = new Person { name = "Sally", age = 23 }; p.SayHello(p2); Console.ReadLine(); }
public static void SayHello(this Person person, Person person2) { Console.WriteLine("{0} says hello to {1}", person.name, person2.name); }