对顺序存储的线性表进行一些操作。主要包括：各种位置的插入、删除操作、显示数据、查找、更新、统计以及学生数据文件的读写操作等。要求线性表采用类的定义-The linear sequence of storage on some operating table. Include: a variety of locations to insert, delete operation, display data, search, updates, statistics, and student data files to read and write operation. Require the use of the linear form of the definition of category