第七组计时器记录
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style type="text/css">
bodybackground-color: black;
.nihao
color: white;
font-size: 5px;
.shuai
position: absolute;
margin: auto;
top: 0px;
bottom: 0px;
left: 0px;
right: 0px;
height: 500px;
width: 300px;
.xs
position: absolute;
margin: auto;
top: 100px;
bottom: 0px;
left: 0px;
right: 0px;
height: 500px;
width: 300px;
span
color: cornsilk;
td
width: 100px;
text-align: center;
</style>
<title>timer</title>
</head>
<body οnlοad="time()">
<center>
<div class="shuai">
<div id="showtime" class="nihao"></div>
</div>
<div>时分秒</div>
<div class="xs">
<input type="text" value="00:00:00" style="background-color: black;color: white;border: 0px;font-size: 80px;" id="num"><br>
<div>
<table>
<tr>
<td>
<span>时</span>
</td>
<td>
<span>分</span>
</td>
<td>
<span>秒</span>
</td>
</tr>
</table>
</div>
<input type="submit" value="暂停" οnclick="stop()" style="background-color: black; color: red; font-size: 30px; border-width: 0px;" >
<input type="submit" value="重置" οnclick="reset()" style="background-color: black; color: blue; font-size: 30px;border-width: 0px;" id="Reset">
<input type="submit" value="开始" οnclick="start()" style="font-size: 30px;opacity:0.8;color: greenyellow;background-color: black;border-width: 0px;" id="Start">
</div>
</center>
</body>
<script>
var n= 0, timer=null;
var oTxt=document.getElementById("num");
function start()
clearInterval(timer);
timer=setInterval(function ()
n++;
var h=parseInt(n/3600);
var m=parseInt(n/60);
if(m>=60)
m=m-(parseInt(n/60)-60);
var s=parseInt(n%60);
oTxt.value=toDub(h)+":"+toDub(m)+":"+toDub(s);
,1000);
;
function stop()
clearInterval(timer);
function reset()
oTxt.value="00:00:00";
clearInterval(timer);
n=0;
function toDub(n)
return n<10?"0"+n:""+n;
function time()
var t_div = document.getElementById("showtime");
var now = new Date()
t_div.innerHTML ="当前时间:"+now.getFullYear() + "/" + (now.getMonth() + 1) + "/" + now.getDate() + "/" + now.getHours() + ":" + now.getMinutes() + ":" + now.getSeconds() + "";
setTimeout(time, 1000);
</script>
</html>
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