根据对话框内输入的数字来改变属性页，单击属性页时，可改变编辑框内的数据。为压缩文件，无解压密码。-within a dialog box under the figures to change attributes page, click Properties page, we can change the data editing box. For compressed files without extracting passwords.

本系统是便于中小型学校的一个选课系统。学生通过输入用户名和密码登入后可直接查询和选课。-of the system is to facilitate small and medium-sized schools in a system classes. Students enter a user name and password log can be direct inquiries and classes.