public class StudentDemo {
public static void main(String args[]) {
StudentManage sm=new StudentManage();
File f = new File("C:\\Documents and Settings\\Administrator\\桌面\\1.txt");
FileInputStream in = null;
FileOutputStream out = null;
ObjectInputStream os = null;
ObjectOutputStream outs = null;
BufferedReader b = new BufferedReader(new InputStreamReader(System.in));
try {
out = new FileOutputStream(f);
outs = new ObjectOutputStream(out);
in = new FileInputStream(f);
os = new ObjectInputStream(in);
while (true) {