效果：
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项目结构图：
代码：
upload.html代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>最基本的使用——plupload演示demo</title>
<script src="js/jquery-1.10.2.min.js"></script>
<script src="js/plupload.full.min.js"></script>
<style>
body{ font-size: 12px;}
body,p,div{ padding: 0; margin: 0;}
.wraper{ padding: 30px 0;}
.btn-wraper{ text-align: center;}
.btn-wraper input{ margin: 0 10px;}
#file-list{ width: 350px; margin: 20px auto;}
#file-list li{ margin-bottom: 10px;}
.file-name{ line-height: 30px;}
.progress{ height: 4px; font-size: 0; line-height: 4px; background: orange; width: 0;}
.tip1{text-align: center; font-size:14px; padding-top:10px;}
.tip2{text-align: center; font-size:12px; padding-top:10px; color:#b00}
.catalogue{ position: fixed; _position:absolute; _width:200px; left: 0; top: 0; border: 1px solid #ccc;padding: 10px; background: #eee}
.catalogue a{ line-height: 30px; color: #0c0}
.catalogue li{ padding: 0; margin: 0; list-style: none;}
</style>
</head>
<body>
<div class="wraper">
<div class="btn-wraper">
<input type="button" value="选择文件..." id="browse" />
<input type="button" value="开始上传" id="upload-btn" />
</div>
<ul id="file-list">
</ul>
</div>
<script>
var uploader = new plupload.Uploader({ //实例化一个plupload上传对象
browse_button : ‘browse‘,
url : ‘FileUpload.php‘,
flash_swf_url : ‘js/Moxie.swf‘,
silverlight_xap_url : ‘js/Moxie.xap‘,
});
uploader.init(); //初始化
//绑定文件添加进队列事件
uploader.bind(‘FilesAdded‘,function(uploader,files){
for(var i = 0, len = files.length; i<len; i++){
var file_name = files[i].name; //文件名
//构造html来更新UI
var html = ‘<li id="file-‘ + files[i].id +‘"><p class="file-name">‘ + file_name + ‘</p><p class="progress"></p></li>‘;
$(html).appendTo(‘#file-list‘);
}
});
//绑定文件上传进度事件
uploader.bind(‘UploadProgress‘,function(uploader,file){
$(‘#file-‘+file.id+‘ .progress‘).css(‘width‘,file.percent + ‘%‘);//控制进度条
});
//上传按钮
$(‘#upload-btn‘).click(function(){
uploader.start(); //开始上传
});
</script>
</body>
</html>
FileUplaod.php:
<?php print_r($_FILES); ?>
原文：http://www.cnblogs.com/KTblog/p/5118181.html