直接上代码

// 创建一个父类
class People {constructor(name) {this.name = name}say() {console.log(`${this.name}`)}
}// 创建一个子类继承父类
class Student extends People {constructor(name, number) {super(name)this.number = number}study() {console.log(`姓名 ${this.name} 学号 ${this.number}`)}
}// 创建一个子类继承父类
class Teacher extends People {constructor(name, major) {super(name)this.major = major}teach() {console.log(`${this.name} 教授 ${this.major}`)}
}// 通过类 new 对象/实例
const xialuo = new Student('夏洛', 100)
console.log(xialuo.name)
console.log(xialuo.number)
xialuo.say()
xialuo.study()// 通过类 new 对象/实例
const wanglaoshi = new Teacher('王老师', '语文')
console.log(wanglaoshi.name)
console.log(wanglaoshi.major)
wanglaoshi.teach()
wanglaoshi.say()