说明：  从 Programming the Windows Driver Modal 这本书翻译过来，详细讲述了WDM的原理， 还附有例子程序，是进行WDM开发不可多得的好帮手
(Programming from the Windows Driver Modal this book translated, a detailed account of the principle of WDM, with examples of procedures, the development of WDM is for a very good helper)