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html网页写一个时钟

2015-12-29 13:07 507 查看

问题?html网页写一个时钟

1.js的形式来写

<!DOCTYPE html>
<html>
<head>
<title北京时间</title>
<script type="text/javascript" charset="utf-8" language="javascript">
function time1(){
var today = new Date();
var hour = today.getHours(),
minute = today.getMinutes(),
second = today.getSeconds();

minute = checkTime(minute);
second = checkTime(second);

document.getElementById('txt').innerHTML=hour+":"+minute+":"+second;
t = setTimeout('time1()',500);
}

function checkTime(i){
if (i<10) {
i="0" + i;
}
return i;
}
</script>
</head>
<body onload="time1()">
<div id="txt"></div>
</body>
</html>

2.jquery的形式写：

<!DOCTYPE html>
<html>
<head>
<title>时钟</title>
<link rel="shortcut icon" href="ico/11.ico">
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<script src="js/jquery-1.11.3.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(document).ready(A);
function A(){
var today = new Date();
var h = today.getHours();
var m = today.getMinutes();
var s = today.getSeconds();
m = C(m);
s = C(s);
$("#a1").html("当前时间为:"+h+":"+m+":"+s)
setTimeout('A()',500);
}
function C(i){
if(i<10){
i="0"+i;
}
return i;
}
</script>
</head>
<body>
<p id="a1"></p>
</body>
</html>

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