ES6学习（10）ES6的继承

// ES6class类继承
class Phone{
     
constructor(brand,price) {
     
 this.brand = brand;
 this.price = price;
}
call(){
     
 console.log("我可以打电话！");
}
}
class SmartPhone extends Phone{
     
 // 构造函数
 constructor(brand,price,color,size) {
     
   super(brand,price); // 调用父类构造函数
   this.color = color;
   this.size = size;
 }
 photo(){
     
   console.log("我可以拍照！");
 }
 game(){
     
   console.log("我可以玩游戏！");
 }
}
const chuizi = new SmartPhone("小米",1999,"黑色","5.15inch");