關於C#中,繼承類重寫與隱藏基類方法的區別!

using System;
using System.Collections;

public class Nevermore60Customer:Customer ...{
    public override string GetFunnyString() ...{
        return "Nevermore60.Nevenmore!";
    }

    public class Customer ...{
        public virtual string GetFunnyString() ...{
            return "Plain ordinary customer.Kaark!";
        }
        public class SamplesArray ...{
            public static void Main() ...{
                Customer Cust1=new Nevermore60Customer();
                Nevermore60Customer Cust2;
                //  Cust1=new Customer();
                Console.WriteLine("Customer referencing Customer."+Cust1.GetFunnyString());
                Cust1=new Nevermore60Customer();
                Console.WriteLine("Customer referencing Nevenmore60Customer:"+Cust1.GetFunnyString());
                Cust2=new Nevermore60Customer();
                Console.WriteLine("Nevenmore60Customer referencing"+Cust2.GetFunnyString());

            }
        }
    }
}

Customer Cust1=new Nevermore60Customer();
如果是重寫:則,如果聲明的基類對象,指向的是派生類,那麼這時調用的是派生類中對基本重寫的方法的方法(如上所示)
如果是隱藏基類方法: public New string GetFunnyString()
 {
  return "Nevermore60.Nevenmore!";
 }
則:Customer Cust1=new Nevermore60Customer();此時Cust1調用的仍是聲明時候的基類中的GetFunnyString方法.
但二者聲明與賦值都是同一個類時,不會發生這種問題.