凸现指针对c的重要性，提供宝贵的提示和智慧的警告。

指针为什么如此重要：正是指针使c的威力无穷。有些任务其它语言可以实现，但c能够更有效的实现；有些任务其它语言无法实现，如访问硬件，但是c可以实现。想要成为出色的c程序员，正确完整的理解指针是一个先决条件-Highlights the importance of c means for providing valuable tips and intelligence warning. Why is such an important pointer: pointer so that c is the power of infinity. Some tasks can be achieved in other languages, but c can realize more effective　some tasks can not be achieved in other languages, such as access to hardware, but c can be achieved. Want to become an excellent c programmers, complete understanding of the correct target is a prerequisite