程序更新程序。基于Http进行远程程序更新。在程序里可以设置更新服务器路径，设置好后，客户端定时连接服务器进行查询，当有新版本时，下载文件，进行更新-procedures update. Http-based remote update. The program can be set to update server path, installed, the client regularly connect servers inquiries, When a new version, downl