Javascript Import关键字返回意外令牌

Question

我只是尝试使用javascript运行一些命令以了解更多内容，而当我尝试导入类时，它返回Unexpected token {

vehicle.js

export class Vehicle{
  constructor(){

  }
  engineTypeSetter(engine){
    this.engineType = engine;
  }
  wheelNumberSetter(number){
    this.wheelNumber = number;
  }
};

car.js

import {Vehicle} from './vehicle';

class Car extends Vehicle{
  constructor(id){
    super();
    this.id = id;
  }
  idGetter(){
    return this.id;
  }
}
let car = new Car(123);
console.log(car.idGetter());

我在做什么错了？

• 节点v10.13.0
• IDE IntelliJ PHPStorm 2018.2.6