说明：  清华大学《数据结构》07年的大作业。要求用VC实现对汉字词典的处理，包括删除、查找等。 这里包括了作业介绍、辞典以及我写的cpp。
(Homework of Data Structure in Tsinghua Univ in 2007. It is to realize Chinese dictionary with the VC treatment, including the deletion, search and so on. Here, including job description, dictionaries, and I wrote the cpp.)