C#中虛方法總結--2

override和new 產生的效果不同

namespace test
{
    class Program
    {
        static void Main(string[] args)
        {
            Person p1 = new Student();
            Person p2 = new SeniorStudent();
            Person p3 = new Undergraduate();
            p1.Say();
            p2.Say();
            p3.Say();
            Console.ReadKey();
        }
    }
}

class Person
{
    public virtual void Say()
    {
        Console.WriteLine("我是一個人！");
    }

}

class Student : Person
{
    public override void Say()
    {
        Console.WriteLine("我是一個學生！");
    }
}

class SeniorStudent : Student
{
    public override void Say()
    {
        Console.WriteLine("我是一個高中生！");
    }
}

class Undergraduate : SeniorStudent
{
    public new void Say()
    {
        Console.WriteLine("我是一個大學生！");
    }
}