Ajax模拟制作进度条

一 代码

fun.js
function progress(){
    setInterval("beginProgress()", 200);	
}
function beginProgress(){
	$.get("progress.php", null, function(data){
		 $("#pg").css("width", data+"%"); 
		 $("#pgtext").html("The progress is "+data+"%");
	});	
}
 
index.php
<!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=gb2312" />
<title>jQuery制作进度条</title>
</head>
<script language="javascript" src="js/jquery-1.3.2.js"></script>
<script language="javascript" src="js/fun.js"></script>
<body>
<div style="width:200px; height:12px; border:1px solid #0000FF">
    <div id="pg" style="width:0%; height:100%;background-color:#0000FF"></div>
</div>
<br>
<div id="pgtext" style="width:100px; height:20px"></div>
<br>
<input type="button" value="开始" onclick="progress()" />
</body>
</html>
 
progress.php
<?php
$file = "./count.txt";
$fp = fopen($file, "r");
$txt = fread($fp, filesize($file));
echo $txt;
$fp1 = fopen($file, "w");
if($txt<100){
    $txt++;
    fwrite($fp1, $txt);
}else{
    fwrite($fp1, 1);
}
fclose($fp1);
fclose($fp);
?>
 
二 运行结果

 

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转载自cakin24.iteye.com/blog/2379884
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