鉴于此类程序可能引起的后果，我们在例程中仅仅为读者提供一个编程的结构、方法和方向，而不是一个完整的程序。有兴趣的读者可以参考这个程序进行进一步的编程。-In view of such procedures may lead to consequences, we routines only provide readers with a programming structure, methods and direction, rather than a complete process. Int