program.cs

来自「csharp课本的源代码」· CS 代码 · 共 30 行

using System;
namespace ConcealExample
{
    public class Hello
    {
        public void SayHello()
        {
            Console.WriteLine("这是基类!");
        }
    }
    public class NewHello : Hello
    {
        public new void SayHello()
        {
            Console.WriteLine("这是扩充类!");
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Hello b = new Hello();
            b.SayHello();
            NewHello d = new NewHello();
            d.SayHello();
            Console.ReadLine();
        }
    }
}