真实下载地址探测，针对重定向的下载地址，找到真实文件路径。-real download detection, response redirect download addresses, find true file paths.

Chapter 2: Getting Started Hello World Hello World Enhanced A simple "Hello World" application that shows the basics of how to use an Actionscr ipt 3.0 class in an application. The Enhanced version adds a nam

真实下载地址探测，针对重定向的下载地址，找到真实文件路径。-real download detection, response redirect download addresses, find true file paths.