<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>setiner</title>
</head>
<body>
<div id="are">
<span id="timeare">
</span><br>
<input type="button" id="btn1" value="start" οnclick="start(this.id)" />
<input type="button" id="btn1" value="stop" οnclick="stop(this.id)" />
</div>
<script type="text/javascript">
var timer;
timer=setInterval("dat()",500);
function dat(){
var date = new Date();
var time=date.getMinutes() + ':' + date.getSeconds() + ':' + date.getMilliseconds();
document.getElementById("timeare").innerHTML=time;
}
function start(){
timer =setInterval("dat()",1000);
}
function stop(){
clearInterval(timer);
}
var num = 0;
var i = setInterval(function() {
num++;
if (num > 10)
clearInterval(i);
}, 1000);
</script>
</body>
</html>
js写了一个关于时间的定时器setinterval
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转载自blog.csdn.net/heiiochange/article/details/78028564
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