现在很多共享软件都有\"在线升级\"功能，比如\"Windows 优化大师\"，\"超级兔子\"，所谓在线升级就是一个版本检测程序，通过他，用户可以随时检查有没有新版本程序，以便及时升级.-now sharing software has many "online upgrade" features such as "Windows optimization guru" and "Super Rabbit", the so-called