public void Add(char[] w)
{
if (w.Length < 1)
return;
TreeNode p = head;
for (int i = 0; i < w.Length; i++)
{
TreeNode n = p.SubNode(w[i]);
if (n == null)
{
n = new TreeNode(w[i]);
p.Born(w[i], n);
}
p = n;
}
p.IsAlsoLeaf = true;
}
public void Born(char k, TreeNode sub)
{
subNodes[k] =sub;
}