摘要：
参考：http://www.ultramegatech.com/2010/10/create-an-upload-progress-bar-with-php-and-jquery/11OCT/1080When it comes to uploading files, users expect visual feedback, usually in the form of a progress bar. The problem is that PHP doesn’t offer a way to track file uploads in progress by default. Fortuna 阅读全文
