隔代访问？

隔代访问？？
class MyBase
  {
  public void Fun1()
  {
  Console.WriteLine("base");
  }
  }
  class MyDerived : MyBase
  {
  new public void Fun1()
  {
  Console.WriteLine("Derived");
  }
   
  }
  class MyDerived2 : MyDerived
  {
  public void Fun5()
  {
  base.Fun1();？？？？？？？如何访问Mybase中的Fun1()??????
  }
  }

[解决办法]

C# code

class MyBase     {         public void Fun1()         {             Console.WriteLine("base");         }       }     class MyDerived : MyBase     {         new public void Fun1()         {             Console.WriteLine("Derived");         }                    }     class MyDerived2 : MyDerived     {         public void Fun5()         {            ((MyBase)this).Fun1();        }     }