using System; class Person { public string name; public int age; } class Test { static void test() { Person person1;//インスタンスへの参照を定義 Person person2; person1 = new Person();//インスタンス作成 person1.name = "太郎"; person1.age = 20; person2 = new Person(); person2.name = "花子"; person2.age = 17; Console.WriteLine(person1.name); Console.WriteLine(person2.name); } public static int Main(string[] args) { Test.test(); return 0; } }