定时器 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="screen">
    shijian
</div>
</body>
</html>
<script>
    var screen=document.getElementById('screen')
    function getTime(){
        screen.innerHTML=new Date().toLocaleTimeString()
    }
    getTime()
    setInterval(getTime

    ,1000)
</script>

posted @ 2021-11-22 13:01  故作矜持  阅读(53)  评论(0)    收藏  举报