public int addstudent(string stunum, string sname, int gender, string startyear, int collegeid)
{
UserService userService = new UserService();
int uid, sid = 0;
uid = userService.insert(stunum, "123456", 1);
if (uid != 0)
{
StudentService studentService = new StudentService();
sid = studentService.insert(uid, stunum, sname, gender, startyear, collegeid);
}
return sid;
}