新增字典数据结构

heshihaoCoder · heshihaoCoder · commit 8e846fa2bf8c · 2022-08-01T10:55:18.000+08:00
diff --git a/字典（Dictionary）/index.html b/字典（Dictionary）/index.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Document</title>
+</head>
+
+<body>
+  <script src="./index.js"></script>
+</body>
+
+</html>
diff --git a/字典（Dictionary）/index.js b/字典（Dictionary）/index.js
@@ -0,0 +1,49 @@
+
+
+function Dictionary() {
+  this.item = {}
+}
+
+// has方法
+Dictionary.prototype.has = function (key) {
+  return key in this.item
+}
+
+// set方法
+Dictionary.prototype.set = function (key, value) {
+  this.item[key] = value
+}
+
+// get方法
+Dictionary.prototype.get = function (key) {
+  return this.item[key]
+}
+
+// 删除方法
+Dictionary.prototype.delete = function (key) {
+  if (this.item.has(key)) {
+    delete this.item[key]
+    return true
+  }
+  return false
+}
+
+// 清空方法
+Dictionary.prototype.clear = function () {
+  this.item = {}
+}
+
+// size方法
+Dictionary.prototype.size = function () {
+  return Object.keys(this.item).length
+}
+
+// 字典的所有键名
+Dictionary.prototype.keys = function () {
+  return Object.keys(this.item)
+}
+
+// 字典的所有键值
+Dictionary.prototype.keys = function () {
+  return Object.values(this.item)
+}
