public int addteacher(TeacherModel teacherModel)
{
UserService userService = new UserService();
int uid, tid = 0;
uid = userService.insert(teacherModel.Tname, "123456", 2);
if (uid != 0)
{
teacherModel.Uid = uid;
TeacherService teacherService = new TeacherService();
tid = teacherService.insert(teacherModel);
//这里将来要模拟实现事务，如果tid为0，则删除user表里的记录
}
return tid;
}
