写出下面程序的运行结果:
class Parent
{ 
 private int i; 
        protected  int j;
        private void Display()
        {   Console.WriteLine("父类");
        }
        protected void Setvalue()
        {   j = 1;
            i = 4;
        }
        public void MyDvalue()
        {   Console.WriteLine("i={0},j={1}", i, j);
        }
    }
 
    class Child : Parent
    {   public int k;
        public void Display()
        {  Console.WriteLine("子类");
        }
        internal void Change()
        {   Setvalue();
            MyDvalue();
        }
    }
   
    class Program
    {
        static void Main(string[] args)
        {
            Parent x = new Parent();
            Child y = new Child();
            x.MyDvalue();
            y.Change();
            y.Display();
            y.MyDvalue();
            y.k = 60;
            Console.WriteLine("{0}",y.k );
            Console.ReadKey();
        }
    }