using System;

​

public class person  //一個公開的類別，名稱為person

{

    public string name;

    public int age;

    public person (string name, int age)  //Constructor(建構子: 物件產生時執行其內容)

    {                                     //(名稱與class相同，無須標示回傳型態)

        this.name = name;   //this表示這個物件

        this.age = age;

    }

    public void SayHello()   //Behavior(行為)及函示(function)

    {

        Console.WriteLine("Hello, my name is " +name);

    }

​

}                   

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}