VB升级程序示例，VB通过版本、升级IP、端口更新程序，将需要升级时候的信息写入到XML中，程序通过读取XML检查是否有更新，具体请参考代码吧。-VB upgrade program example, VB through version upgrades IP, port update, will need to be upgraded when the write information to XML, XML program by reading to check for updates, please refer to the specific bar code.