（1）为班级学生花名册建立开桶或闭桶散列表。

（2）友好性：界面要友好，输入有提示，尽量展示人性化。

（3）可读性：源程序代码清晰、有层次。

（4）健壮性：对输入的数据有纠错处理。-(1) class roster for the establishment of open or closed barrels barrels hash table. (2) friendly: the interface should be friendly, to bring in people with tips, try to show humanity. (3) readability: source code clear, there are levels. (4) robustness: the input data are error-correcting processing.