Silverlight上传工具支持多文件上传，上传之前预览图片窗口可以调整图片大小，独立进度和整体进度显示，快速上传，ASP.NET服务器控件，并且可以非常灵活的改变程序根据自己的需求。-Silverlight upload tool to support multiple file upload, upload to preview window can adjust the picture size, independent schedule and the overall progress