public void AddAfter(T value)
{
DbNode <T> newNode = new DbNode <T>(value);
if (head == null)
{
head = newNode;
}
else
{
DbNode <T> lastNode = this.GetNodeByIndex(this.Count - 1);
lastNode.Next = newNode;
newNode.Prev = lastNode;
}
Count++;
}
public void RemoveAt(int index)
{
if (index < 0 || index > this.Count - 1)
{
throw new ArgumentOutOfRangeException("index", "索引超出范围");
}
DbNode <T> deleteNode = this.GetNodeByIndex(index);
DbNode <T> prevNode = deleteNode.Prev;
DbNode <T> nextNode = deleteNode.Next;
prevNode.Next = nextNode;
nextNode.Prev = prevNode;
Count--;
}