JS电子时钟简易版简单控制@慕课网原创_慕课网

<!DOCTYPE html>
  <meta charset="utf-8">
  <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<script language="javascript" type="text/javascript">
 //间隔计时器或者单次计时器
    window.onload = function(){     
       setInterval(showtime,10); 
      }

    function showtime(){
        //输出星期需要转换显示格式
        var weeks = ['星期日','星期一','星期二','星期三','星期四','星期五','星期六'];
         var mytime = new Date();
        //JS月份从0起算，需要加一
           var mon = mytime.getMonth() + 1;            
           var hou=mytime.getHours();
             hou=hou<0?'0'+hou:hou;
            var min=mytime.getMinutes();
                 min=min<0?'0'+min:min;
            var sec=mytime.getSeconds();
             sec=sec<0?'0'+sec:sec;

       document.title=mytime.getFullYear() +"年"+ mon+"月"+ mytime.getDate()+"日 "+weeks[mytime.getDay()]+" "+ hou +":"+ min+":"+ sec;

    }
</script>