您好,登錄后才能下訂單哦!
這篇文章給大家介紹使用JavaScript怎么實現一個二叉樹,內容非常詳細,感興趣的小伙伴們可以參考借鑒,希望對大家能有所幫助。
function Node(data , left,right){ this.data = data; this.left = left; this.right = right; this.show = show; function show(){ return this.data; } }; function Bst(){ this.root = null; this.insert = insert;//插入 this.inOrder = inOrder;//中序遍歷(升序) this.inOrderDesc = inOrderDesc;//中序遍歷(降序) this.preOrder = preOrder;//先序遍歷 this.postOrder = postOrder;//后續遍歷 this.getMin = getMin;//最大值 this.getMax = getMax;//最小值 this.find = find;//查找值 this.remove = remove;//刪除節點 this.count = count;//獲取節點數量 function insert(data){ //創建一個新的節點 var newNode = new Node(data,null,null); //判斷是否存在根節點,沒有將新節點存入 if(this.root == null){ this.root = newNode; }else{ //獲取根節點 var current = this.root; var parent; while(true){ //將當前節點保存為父節點 parent = current; //將小的數據放在左節點 if(data < current.data){ //獲取當前節點的左節點 //判斷當前節點下的左節點是否有數據 current = current.left; if(current == null){ //如果沒有數據將新節點存入當前節點下的左節點 parent.left = newNode; break; } }else{ current = current.right; if(current == null){ parent.right = newNode; break; } } } } } function inOrder(node){ var data = []; _inOrder(node,data); return data; } function inOrderDesc(node){ var data = []; _inOrderDesc(node,data); return data; } function preOrder(node){ var data = []; _preOrder(node,data); return data; } function postOrder(node){ var data = []; _postOrder(node,data); return data; } function _inOrder(node,data){ if(!(node == null)){ _inOrder(node.left,data); data.push(node.show()); _inOrder(node.right,data); } } function _inOrderDesc(node,data){ debugger; if(!(node == null)){ _inOrderDesc(node.right,data); data.push(node.show()); _inOrderDesc(node.left,data); } } function _preOrder(node,data){ if(!(node == null)){ data.push(node.show()); _preOrder(node.left,data); _preOrder(node.right,data); } } function _postOrder(node,data){ if(!(node == null)){ _postOrder(node.left,data); _postOrder(node.right,data); data.push(node.show()); } } function getMin(){ var current = this.root; while(!(current.left == null)){ current = current.left; } return current.data; } function getMax(){ var current = this.root; while(!(current.right == null)){ current = current.right; } return current.data; } function find(data){ var current = this.root; while(current != null){ if(data == current.data){ return current; }else if(data < current.data){ current = current.left; }else{ current = current.right; } } return null; } function getSmallest(node){ var current = node; while(!(current.left == null)){ current = current.left; } return current; } function remove(data){ root = removeNode(this.root,data); } function removeNode(node,data){ if(node == null){ return null; } if(data == node.data){ //如果沒有只節點 if(node.left == null && node.right){ return null; } //如果沒有左節點 if(node.left == null){ return node.right; } //如果沒有右節點 if(node.right == null){ return node.left; } //有兩節點 var tempNode = getSmallest(node.right); node.data = tempNode.data; node.right = removeNode(node.right,tempNode.data); return node; }else if(data < node.data){ node.left = removeNode(node.left,data); return node; }else{ node.right = removeNode(node.right,data); return node; } } function count(){ var counts = 0; var current = this.root; if(current == null){ return counts; } return _count(current,counts); } function _count(node,counts){ debugger; if(!(node == null)){ counts ++; counts = _count(node.left,counts);; counts = _count(node.right,counts); } return counts; } }
關于使用JavaScript怎么實現一個二叉樹就分享到這里了,希望以上內容可以對大家有一定的幫助,可以學到更多知識。如果覺得文章不錯,可以把它分享出去讓更多的人看到。
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。