VIP32/ts/4.面向对象/dist/4.super.js

"use strict";
(function () {
    // 父类
    class Animal {
        constructor(name) {
            this.name = name;
        }
        eat() {
            console.log("吃的真香");
        }
    }
    class Cat extends Animal {
        /**
         * 若子类继承父类
         * 子类的构造函数中必须对父类的构造函数进行重新
         */
        constructor(name, age) {
            super(name);
            this.age = age;
        }
    }
    let cat = new Cat('喵喵', 3);
    console.log(cat.name);
    console.log(cat.age);
    cat.eat();
})();