<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>pregressbar03</title>
</head>
<body>
<style type="text/css">
#progress {
height: 20px;
border: 1px solid pink;
}
#bar_span{
display:block;
0%;
height:20px;
background: green;
}
</style>
<script type="text/javascript" src="http://libs.baidu.com/jquery/2.0.0/jquery.js"></script>
<script type="text/javascript">
function SetProgress(ress) {
if (ress){
$("#bar_span").css("width", String(ress) + "%");
}
}
var i = 0;
function doProgress() {
if (i <= 100) {
setTimeout("doProgress()", 100);
SetProgress(i);
$("#percent").text(i+"%");
i++;
}
}
$(document).ready(function() {
doProgress();
});
</script>
<h1>Javascript 进度条 Demo</h1>
<p>原理就是使用 Javascript 控制 SPAN CSS 的宽度（以及其他的样式）</p>
<div id="progress"><span id="bar_span"> </span>
<span id="percent">0%</span>
</div>
</body>
</html>