iphone下的一个多线程多任务HTTP下载的例子-iphone under a multi-threaded multi-tasking HTTP download example

iPhone平台上的一个应用程序，主要用于处理HTTP多任务处理时实现进度条及其他HTTP相关现实。-iPhone platform an application is mainly used to handle multi-tasking HTTP processing to achieve the progress bar, and other HTTP-related reality.