|
@@ -0,0 +1,60 @@
|
|
|
+<!DOCTYPE html>
|
|
|
+<html lang="en">
|
|
|
+ <head>
|
|
|
+ <meta charset="UTF-8" />
|
|
|
+ <meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
|
|
+ <title>Document</title>
|
|
|
+ </head>
|
|
|
+ <body>
|
|
|
+ <script>
|
|
|
+ /**
|
|
|
+ * ES6提供了class(类)的概念;
|
|
|
+ * 通过class定义关键字,可以是定义类
|
|
|
+ * class 定义类
|
|
|
+ * constructor 定义构造函数初始化
|
|
|
+ * extends 继承父类
|
|
|
+ * super 调用父级构造函数方法
|
|
|
+ * static 定义静态的方法和属性
|
|
|
+ */
|
|
|
+ // class定义类
|
|
|
+ class Phone {
|
|
|
+ // 构造函数
|
|
|
+ constructor(color,rain,holiday) {
|
|
|
+ this.color = color;
|
|
|
+ this.rain = rain;
|
|
|
+ this.holiday = holiday;
|
|
|
+ }
|
|
|
+ // 类的方法
|
|
|
+ call() {
|
|
|
+ console.log("打电话");
|
|
|
+ }
|
|
|
+ green() {
|
|
|
+ console.log("这是绿色")
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ //es6的继承
|
|
|
+ class newPhone extends Phone {
|
|
|
+ constructor(color,rain,holiday,book,vase){
|
|
|
+ super(color,rain,holiday);
|
|
|
+ this.book = book;
|
|
|
+ this.vase = vase;
|
|
|
+ }
|
|
|
+ music() {
|
|
|
+ console.log("音乐");
|
|
|
+ }
|
|
|
+ static end() {
|
|
|
+ console.log("结束");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ var a1 = new Phone('红色','晴天','过年');
|
|
|
+ console.log(a1);
|
|
|
+ var a2 = new newPhone('12','23','34','掘金','花瓶');
|
|
|
+ console.log(a2,'a2');
|
|
|
+ a2.call();
|
|
|
+ a2.music();
|
|
|
+ newPhone.end();
|
|
|
+
|
|
|
+ </script>
|
|
|
+ </body>
|
|
|
+</html>
|