public void Clear()
{
if (Next == null)
{
return;
}
Next.Clear();
Next = null;
}
public void Clear()
{
if (First != null)
{
First.Clear();
First = null;
}
if (Last != null)
{
Last.Clear();
Last = null;
}
if (Next != null)
{
Next.Clear();
Next = null;
}
}