class Teacher(object):
    def __init__(self,name,password):
        import tools
        self.name=name
        self.password=tools.encrypt_password(password)

class Student(object):
    def __init__(self,s_id,name,age,sex,tel):
        self.s_id=s_id
        self.name=name
        self.age=age
        self.sex=sex
        self.tel=tel
