static void Main(string[] args)
{
BinaryTree bTree = new BinaryTree("xvbc[#;a#RE##U");
Console.Write("先序遍历:");
bTree.PreOrder(bTree.Head);
Console.WriteLine();
Console.Write("中序遍历:");
bTree.MidOrder(bTree.Head);
Console.WriteLine();
Console.Write("后序遍历：");
bTree.AfterOrder(bTree.Head);
Console.WriteLine();
Console.Write("广度优先遍历：");
bTree.LevelOrder();
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("TREE - Binary");
BinaryTree tree = new BinaryTree();
tree.Add(5);
tree.Add(7);
tree.Add(2);
tree.Add(1);
tree.Add(6);
tree.Add(3);
//traversal
//Depth first
Console.WriteLine("\nPreorder");
tree.Preorder(tree.Root, 0);
Console.WriteLine("\nPostorder");
tree.Postorder(tree.Root, 0);
Console.WriteLine("\nInorder");
tree.Inorder(tree.Root, 0);
//Breadth first
Console.WriteLine("\nUsing given level");
DateTime startTime = DateTime.Now;
tree.LevelOrder(tree.Root);
Console.Write($" in {(DateTime.Now - startTime).TotalSeconds}s\n");
Console.WriteLine("\nUsing queue");
startTime = DateTime.Now;
tree.LevelOrderWithQueue(tree.Root);
Console.Write($" in {(DateTime.Now - startTime).TotalSeconds}s\n");
//Search
Console.WriteLine("\nSearching (Preorder)");
string result = tree.Search(tree.Root, 6) != null ? "Found" : "Not found";
Console.WriteLine($"Search for 6: {result}");
result = tree.Search(tree.Root, 9) != null ? "Found" : "Not found";
Console.WriteLine($"Search for 9: {result}");
}