一个泛型链表

    internal class Node
    {
        protected Node m_next;
        public Node(Node next)
        {
            m_next = next;
        }

    }
    internal class TypedNode<T> : Node
    {
        public T m_data;
        public TypedNode(T data)
            : this(data, null)
        {

        }
        public TypedNode(T data, Node next)
            : base(next)
        {
            m_data = data;
        }
        public override string ToString()
        {
            return m_data.ToString() + ((m_next == null ? null : m_next.ToString()));
        }
    }

测试代码:

            Node head = new TypedNode<Char>('.');
            head = new TypedNode<DateTime>(DateTime.Now, head);
            head = new TypedNode<string>(" Today is ", head);
            Console.WriteLine(head.ToString());

Codes from <CLR via C# 3>