public virtual EditorTreeNode add(int index, EditorTreeNode node)
{
this.childs.Insert(index, node);
this.mapSnChilds.Add(node.sn, node);
node.deep = this.deep + 1;
node.parent = this;
node.index = index;
//如果是插入操作，更新后面兄弟节点的索引
for (int i = index + 1; i < this.childs.Count; ++i)
{
this.childs [i].index = i;
}
return(node);
}
public virtual EditorTreeNode add(EditorTreeNode node)
{
int index = childs.Count;
return(add(index, node));
}
public virtual bool canAttach(EditorTreeNode node)
{
return(true);
}
