PHP Class&Object
来源:诚信在线    发布时间:2017-07-03 13:17:36

  }

  $l = array();

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  // Prep some variables.

  public function traverseInorder() {

  if ($this->left) { $l = $this->left->traversePostorder(); }

  echo '', implode(', ', $tree->traversePostorder()), '

  //                                                            h   九     

  // Create the tree:                                             六   a   

  复制代码 代码以下:

  echo '', implode(', ', $tree->traverseInorder()), '

  // Let's create a binary tree that will equal the following:    三

  if ($this->left) { $l = $this->left->traversePreorder(); }

  // In-order: h, 三, 六, 九, a

  // Traverse the tree, left to right, in-order, returning an array.

  $l = array();

  // Return a merged array of the current value, left, and right:

  //                                                             / /     

  // Traverse the tree, left to right, in postorder, returning an array

  if ($this->left) { $l = $this->left->traverseInorder(); }

  if ($this->right) { $r = $this->right->traverseInorder(); }

  }

  }

  return array_merge($l, $r, array($this->data));

  $tree = new Binary_Tree_Node(三);

  $r = array();

  ';

  // Return a merged array of the current value, left, and right:

  $l = array();

  }

  return array_merge(array($this->data), $l, $r);

  $tree->left = new Binary_Tree_Node('h');

  if ($this->right) { $r = $this->right->traversePostorder(); }

  // Pre-order: 三, h, 九, 六, a

  // Prep some variables.

  // Read in the left and right children appropriately traversed:

  //  node value, then the right children.

  $tree->right = new Binary_Tree_Node(九);

  ?>

  //                                                               / /    

  return array_merge($l, array($this->data), $r);

  public function traversePreorder() {

  public function traversePostorder() {

  // Return a merged array of the current value, left, and right:

  // Read in the left and right children appropriately traversed:

  $tree->right->right = new Binary_Tree_Node('a');

  // Traverse the tree, left to right, in pre-order, returning an array

  // Preorder means that each node's value preceeds its children.

  // Read in the left and right children appropriately traversed:

  echo '', implode(', ', $tree->traversePreorder()), '

  // Postorder means that each node's value follows its children.

  $r = array();

  // In-order means that values are ordered as left children, then the

  ';

  }

  $tree->right->left = new Binary_Tree_Node(六);

  // Now traverse this tree in all possible orders and display the results:

  $r = array();

  if ($this->right) { $r = $this->right->traversePreorder(); }

  data = $d;

  // Prep some variables.

  二叉树及其变体是数据结构家属面的主要组成部分。最为链表的一种变体,二叉树最适宜解决必要1特定顺序快捷构造以及检索的数据。

  // Post-order: h, 九, 六, a, 三

  ';


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