说明：  在编写应用程序时，有时会遇到有关目录的遍历的问题，在这里介绍我在开发ＷＭＬ微浏览器的收藏夹功能时有关扁历目录的程序原理与代码。
(In the preparation of application, sometimes encounter problems relating to directory traversal problems, here I introduce in the development of WML micro browser favorites function directory on the flat calendar Principle and Code of Procedure.)