这是一个利用Delphi提供的系统服务类制作的后台服务程序，演示了定时备份文件的功能。注册服务的方法，在Delphi的Run parameters对话框中输入“/install”，然后运行代码。卸载输入“/uninstall”，然后运行代码。-This is a Delphi system services provided by the class production services for the background, demonstrated a regular backup files. Registration services, in Delphi's Run dialog box input parameters "/ install," and then execute code. Unloading the importation of "/ uninstall", and then run code.