测试性提交:创建一个测试性文件

src/other/tree.js

@@ -0,0 +1,80 @@
+// tree.js
+// 实现一个树结构
+class Tree {
+    constructor(data) {
+        this.data = data;
+        this.children = [];
+    }
+}
+module.exports = Tree;
+// 相关的方法
+// 插入子节点
+Tree.prototype.insert = function(data) {
+    this.children.push(new Tree(data));
+}
+// 遍历树
+Tree.prototype.traverse = function(callback) {
+    callback(this.data);
+    for (let i = 0; i < this.children.length; i++) {
+        this.children[i].traverse(callback);
+    }
+}
+// 查找树
+Tree.prototype.find = function(data) {
+    if (this.data === data) {
+        return this;
+    }
+    for (let i = 0; i < this.children.length; i++) {
+        let result = this.children[i].find(data);
+        if (result) {
+            return result;
+        }
+    }
+    return null;
+}
+// 删除树
+Tree.prototype.remove = function(data) {
+    for (let i = 0; i < this.children.length; i++) {
+        if (this.children[i].data === data) {
+            this.children.splice(i, 1);
+            return;
+        }
+    }
+}
+// 清空树
+Tree.prototype.clear = function() {
+    this.children = [];
+}
+// 树的高度
+Tree.prototype.height = function() {
+    let height = 0;
+    for (let i = 0; i < this.children.length; i++) {
+        let childHeight = this.children[i].height();
+        if (childHeight > height) {
+            height = childHeight;
+        }
+    }
+    return height + 1;
+}
+// 树的深度
+Tree.prototype.depth = function() {
+    let depth = 0;
+    let parent = this.parent;
+    while (parent) {
+        depth++;
+        parent = parent.parent;
+    }
+    return depth;
+}
+// 树的大小
+Tree.prototype.size = function() {
+    let size = 1;
+}
+// 树的叶子节点
+Tree.prototype.leaf = function() {
+    let leaf = 0;
+}
+// 树的节点数
+Tree.prototype.node = function() {
+    let node = 0;
+}