9.1.8 getseconds方法.html

即学即用JavaScript核心对象参考手册原版光盘

<!--设置每隔1秒钟刷新页面一次-->
<meta http-equiv="refresh" content="1">
<script>
  var objdate=new Date();
  var hour=objdate.getHours();
  var minute=objdate.getMinutes();
  var second=objdate.getSeconds();
  var time=hour+":"+minute+":"+second;
  //输出当前的计算机时间
  document.write("当前时间为："+time);
</script>