说明：  CWmiUtilities类是简易的WMI操作工具，它封装了Windows提供的部分WMI COM API，主要可用于读取或设置WMI实例的属性，比如可以通过WMI来读取，设置系统的各种信息，状态等。
(CWmiUtilities is simple to operate WMI tool that encapsulates part of Windows to provide WMI COM API, the main can be used to read or set the properties of WMI instances, for example, through WMI to read, set system information, status, etc. .)