public class Person
        {
            public string Name { get; set; }
            public int Age { get; set; }
            public Person(string Name, int Age)
            {
                this.Age = Age;
                this.Name = Name;
            }
        }

        public class Person
        {
            public string Name { get; set; }
            public int Age { get; set; }
            public Person(string Name, int Age)
            {
                this.Age = Age;
                this.Name = Name;
            }
            public void CallTest(Person person)
            {
                Console.WriteLine(person.Name + person.Age);
            }
            public void Call()
            {
                CallTest(this);
            }
        }

        public class Person
        {
            string[] PersonList = new string[10];
            public string this[int param]
            {
                get { return PersonList[param]; }
                set { PersonList[param] = value; }
            }
        }