谈谈C#中的三个关键词new , virtual , override

Code
将GrandsonClass.cs修改如下：
namespace NewVirtualOverride
{
    class GrandsonClass : InheritClass
    {
        public GrandsonClass():base()
        {
        }
        public override void Print()
        {
            Console.WriteLine("GrandsonClassPrint");
        }
    }
}
InheritClass.cs修改如下：
namespace NewVirtualOverride
{
    class InheritClass : BaseClass
    {
        public InheritClass():base()
        {
        }
        new public virtual void Print()
        {
            Console.WriteLine("InheritClassPrint");
        }
    }
}
BaseClass.cs修改如下：
namespace NewVirtualOverride
{
    class BaseClass
    {
        public BaseClass()
        {
        }
        public virtual void Print()
        {
            Console.WriteLine("BaseClassPrint");
        }
    }
}
Program.cs修改如下：
namespace NewVirtualOverride
{
    class Program
    {
        static void Main(string[] args)
        {
            BaseClass baseclass = new BaseClass();
            baseclass.Print();
 
            InheritClass inheritClass = new InheritClass();
            inheritClass.Print();
 
            BaseClass grandsonClass = new GrandsonClass();
            grandsonClass.Print();\
            Console.ReadLine();
        }
    }
}