ES6面向对象

类声明与构造函数

class 声明类
constructor 构造函数

    <script>
        class Person {
            constructor(name, age) {
                this.name = name;
                this.age = age;
            }
            //方法
            showPerson() {
                console.log(this.name, this.age);
            }
        }
        //实例化
        let person = new Person("番茄向前看", "18");
        person.showPerson();//调用类方法
    </script>

继承与超类

    <script>
        //定义父类
        class Person {
            constructor(name, age) {
                this.name = name;
                this.age = age;
            }
            //方法
            showPerson() {
                console.log(this.name, this.age);
            }
        }
        //子类的继承
        class Worker extends Person {
            constructor(name, age, job) {
                super(name, age);//可以使用super(超类)继承属性
                this.job = job;
            }
            //方法
            showJob() {
                console.log(this.job);
            }
        }
        //实例化子类
        let workers = new Worker("石头", "15", "没有工作")
        //调用子类方法
        workers.showJob()
        //调用父类方法
        workers.showPerson()
    </script>