互联网的普及也让程序的升级变得更加方便，软件更新快，最简单方便的方法升级软件就是通过互联网随时随地进行。本例就教大家做一个简单的升级精灵程序，只要连接到互联网，就能通过对比程序日期列出需要升级的文件列表，根据需要下载升级文件，让程序的升级操作变得轻松愉快。-Popularity of the Internet also make the program more convenient upgrades, software updates faster, the most simple and convenient way to upgrade the software through the Internet anytime, anywhere. In this case teach us to do a simple upgrade wizard program, just connect to the Internet, you can list the date of the program by comparing the list of files need to be upgraded, according to the need to download the upgrade file, the upgrade process has become so relaxed and happy.