目前游子的修正版基于官方最新的2.2.0稳定版，修正了一个存在XSS隐患的安全漏洞。请直接下载游子提供的版本，而非官方未修正版版本。
SWFUpload is a JavaScript Library that wraps the Flash Player's upload function. It brings your uploads to the next level with Multiple File Selection, Upload Progress and Client-side File Size Checking.
Unlike other Flash upload tools, SWFUpload leaves the UI in the developer's hands. Using a set of event handlers developers can display upload progress and status to the user in their own HTML/CSS UI.
SWFUpload has been featured in such projects as YouTube and WordPress.