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jQuery實現的進度條效果

[JavaScript]程式碼   

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>進度條效果</title>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<style type="text/css">
#progress 
{
 background:white;
 height:20px;
 padding:2px;
 border:1px solid green;
 margin:2px;
}
#progress span 
{
 background:green;
 height:16px;
 text-align:center;
 padding:1px;
 margin:1px;
 display:block;
 color:yellow;
 font-weight:bold;
 font-size:14px;
 width:0%;
}
</style>
<script type="text/javascript"> 
 var progress_node_id = "progress"; 
 function SetProgress(progress) { 
  if (progress) { 
   $("#" + progress_node_id + " > span").css("width", String(progress) + "%"); 
   $("#" + progress_node_id + " > span").html(String(progress) + "%"); 
  } 
 } 
 var i = 0; 
 function doProgress() { 
 if (i > 100) { 
  alert("Progress Bar Finished!"); 
  return; 
 } 
 if (i <= 100) { 
  setTimeout("doProgress()", 500); 
  SetProgress(i); 
  i++; 
 } 
 } 
 $(document).ready(function() { 
  doProgress(); 
 }); 
</script>
</head>
<body>
<h1>jQuery實現進度條效果程式碼</h1>
<p>原理就是使用 Javascript 控制 SPAN CSS 的寬度(以及其他的樣式),重新整理檢視</p>
<div id="progress"><span></span></div>
</body>
</html>

【轉自】http://www.open-open.com/code/view/1454897302605