简易数组随机点名器

<style>
        *{
            padding: 0px;
            margin: 0px;
            box-sizing: border-box;
        }
        #bigbox{
            width: 500px;
            height: 300px;
            background-color: deepskyblue;
            margin: 50px auto;
            text-align: center;
        }
        #box{
            line-height: 300px;
            font-size: 30px;
        }
        input{
            margin:10px auto;
            width:300px;
            height:40px;
        }
       
    </style>
</head>
<body>
    <div >
        <div >卷王点名器</div>
        <input type="button" value="停止" >
        <button >恢复首页</button>
    </div>

</body>
</html>
<script>
    
    var bt =document.getElementById('btn');
    var box1=document.getElementById('box');
    var bth=document.getElementById('bthg');
   

    var inter= setInterval('randName()',100);

    var randName =function(){
        var name=['淑芬','海燕','旺财','小威威','虎娇娇','小田田','阿姆斯特旋天炮','彪哥','小柳柳','来顺'];

        var n=parseInt(Math.random()*10);
        box1.innerHTML=name[n];

    }


    bt.onclick =function(){
        if(bt.value=='停止'){
            clearInterval(inter);
            bt.value='开始点名';
        }
        else{
            bt.value='停止';
            inter= setInterval('randName()',100);

        }
    }
    
    bth.onclick=function(){
        box1.innerHTML='卷王点名器';
    }
 
</script>