public int IndexOf(T item)
{
int index = 0;
DoubleLinkedNode <T> p = head;
while (p.Next != null)
{
if (item.Equals(p.Next.Item))//一旦找到匹配的就立刻退出函数
{
return(index);
}
else
{
index++;
p = p.Next;
}
}
return(-1);
}
public virtual T this[int i]
{
get
{
if ((i < 0) || (i >= Count))
{
throw new IndexOutOfRangeException("Index is out of range " + this.GetType());
}
else
{
DoubleLinkedNode <T> p = head.Next;
while (i > 0)
{
p = p.Next;
i--;
}
return(p.Item);
}
}
}
public DoubleLinkedNode()
{
item = default(T);
front = next = null;
}
public DoubleLinkedNode(T k)
{
item = k;
front = next = null;
}
public DoubleLinkedList()
{
head = new DoubleLinkedNode <T>();
}