说明：  Ring0级操作注册表！在驱动开发中，经常会用到对注册表的操作，与Win32的API不同，DDK提供另外一套对注册表操作的相关函数，本代码给出了内核模式下对注册表的所有操作实例！
(Ring0 registry class operation! At driver development, often used for the operation of the registry with Win32' s API different, DDK provide another set of registry operations correlation function, the code give the kernel mode of operation of the registry of all the examples !)