Because of the seriousness of security issues in driver programming, this edition uses a special icon to highlight areas that are especially important to driver reliability and security.

• 由于安全问题在驱动程序设计中的重要性,在本版书籍中,我们将用一个专门的图标来强调该处内容对于驱动可靠性和安全性来说是尤为重要的。