using System;

namespace ConApp4
{
    /// <summary>
    /// InheritedMethods 的摘要说明。
    /// </summary>
    class InheritedMethods
    {
        [STAThread]
        static void Main(string[] args)
        {
            DerivedClass dc = new DerivedClass();
            BaseClass bc = dc;
            bc.VirtualMethod();
            bc.NonVirtualMethod();
        }
    }

    class BaseClass
    {
        public virtual void VirtualMethod()
        {
            Console.WriteLine("VirtualMethod in BaseClass");
        }
        public void NonVirtualMethod()
        {
            Console.WriteLine("NonVirtualMethod in BaseClass");
        }
    }

    class DerivedClass : BaseClass
    {
        public override void VirtualMethod()
        {
            Console.WriteLine("VirtualMethod in DerivedClass");
        }
        public new void NonVirtualMethod()
        {
            Console.WriteLine("NonVirtualMethod in DerivedClass");
        }
    }
}
上面的代码运行后结果：
VirtualMethod in DerivedClass
NonVirtualMethod in BaseClass
这个是否能说明变量的 Virtual 方法由其实际类型中的方法决定
而非 Virtual 方法调用则由其声明类方法确定 ？？

哦，这就是说以 是否被 override 进行判定的？