编写一个程序，能够输入学生的信息，包括：“学号”、“姓名”、“性别”、“年龄”和所在的系，并能根据学生的“学号”、“姓名”和系别来进行检索。当检索到的信息超过一个时，能够依次显示。

-Write a program that can input students　information, including: "student id", "names", "sex", "age" and in the department, and can according to the student "the student id", "name" and the don t to retrieval. When the information retrieval more than a, can in turn display.