using System;

public class Person  //建立一個新的class，名為Person

{   private string name;  //設定成private

    public int age;

    public Person(string name, int age)

    {   this.name=name;   //建構子:物件產生時，執行其內容

        this.age=age;     //名稱與class相同，無需回傳

    }

}

​

public class Program

{

    public static void Main()

    {   Person Anna= new Person("Anna",20); 

        Console.WriteLine(Anna.age);  //age被設定成public，故可以顯示

        Console.WriteLine(Anna.name); //name被設定成private，故無法顯示

    }

}