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Home > Web Front-end > JS Tutorial > body text

JS real-time time

巴扎黑
Release： 2016-12-10 09:08:52
Original
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<!DOCTYPE html> 
<html> 
<head> 
<meta charset="UTF-8"> 
<title>JS 实时的时间</title> 
</head> 
<script> 
function startTime(){ 
var today=new Date(); 
var h=today.getHours(); 
var m=today.getMinutes(); 
var s=today.getSeconds();// 在小于10的数字 前加一个‘0’ 
m=checkTime(m); 
s=checkTime(s); 
document.getElementById(&#39;txt&#39;).innerHTML=h+":"+m+":"+s; 
t=setTimeout(function(){startTime()},500); 
} 
function checkTime(i){ 
if (i<10){ 
i="0" + i; 
} 
return i; 
} 
</script> 
<body onload="startTime()"> 
<div id="txt"></div> 
</body> 
</html>
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JavaScript JS 实时的时间
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