```js class Person { constructor(name) { this.name = name } drink() { console.log('喝水'); } } // student類繼承了 Person類上的所有方法 class Student extends Person { constructor(name, score) { // this.name = name super(name) // 繼承 person的參數 this.score = score } introduce() { console.log(`我是${this.name}，分數是${this.score}`); } } class Teacher { constructor(name, subject) { this.name = name this.subject = subject } teach() { console.log(`我是${this.name}`); } } const student = new Student('張三', 99) student.introduce() ```