时钟
来源：互联网 发布：淘宝描述不符申请退款 编辑：程序博客网 时间：2024/06/03 21:32
<!DOCTYPE html><html><head><meta charset="UTF-8"><title>时钟</title></head><script>function refresh(){var today = new Date();//别忘记更新日期var h=today.getHours();var m=today.getMinutes();var s=today.getSeconds();console.log(h,m,s);m=retime(m);s=retime(s);//retime函数来判断是否小于10var clock = document.getElementById("clock");clock.innerHTML=h+":"+m+":"+s;t=setTimeout(function(){refresh()},500);//每隔0.5s刷新}function retime(i){if(i<9){i='0'+i;}return i;//要有返回值 }</script><body onload="refresh()"><!--放body这里--><p id="clock"></p></body></html>
