//车类class Car{//构造函数    constructor(){
        console.log("开始造车");
    }    
}//实例化，类->对象let c=new Car();

//构造函数的写法类似简洁表示法let obj={//普通写法fn:function(){

    },//简洁表示法    fn2(){
        
    }
}

//车类class Car{//构造函数constructor(wheel,color,length,width){//接收参数//给属性赋值,this指向当前实例化的结果this.wheel=wheel;this.color=color;this.length=length;this.width=width;this.speed=0;
    }    //方法    speedUp(){this.speed+=1;
    }
}//实例化，类->对象let c=new Car(3,"#abcdef",20,40);
console.log(c);
c.speedUp();//调用实例（对象）的方法console.log(c.speed);//获取实例（对象）的属性

//车类class Car{//构造函数constructor(wheel,color,length,width){//接收参数//给属性赋值,this指向当前实例化的结果this.wheel=wheel;this.color=color;this.length=length;this.width=width;this.speed=0;
    }    //方法    speedUp(){this.speed+=1;
    }
}//实例化，类->对象let c1=new Car(3,"#abcdef",20,40);
let c2=new Car(4,"pink",10,40);
console.log(c1,c2);

ES6 class//模拟一个播放器类class AudioPlayer{
    constructor(container){//接收参数this.container=document.querySelector(container);this.songsList=[];this.dom=null;this.audio=new Audio();this.status=0;//标记播放器的状态this.getSongs();//获取歌单列表this.createElement();//创建DOMthis.bindEvent();//绑定事件this.render();//渲染到页面    }

    getSongs(){//模拟ajax请求拿数据this.songsList=[
            {
                songName:"name1",
                songCover:"cover1",//封面songSinger:"singer1",//歌手songUrl:"url1"//资源地址            },
            {
                songName:"name2",
                songCover:"cover2",//封面songSinger:"singer2",//歌手songUrl:"url2"//资源地址            }
        ];
    }

    createElement(){
        const div=document.createElement("div");
        div.innerHTML=`播放按钮进度条        `;this.dom=div;
    }

    bindEvent(){this.dom.querySelector(".btn").addEventListener("click",()=>{
            console.log("开始播放");
        })
    }

    render(){this.container.appendChild(this.dom);
    }
}new AudioPlayer("#app");" _ue_custom_node_="true">