Student类： 属性：身份证号码、姓名、性别、年龄、籍贯、住址，学号； 方法：eat,sleep,print,study; Teacher类： 属性：身份证号码、姓名、性别、年龄、籍贯、住址，职称title； 方法：eat,sleep,print,teach;

class Student:
def __init__(self, id_num, name, gender, age, hometown, address, student_id):
self.id_num = id_num
self.name = name
self.gender = gender
self.age = age
self.hometown = hometown
self.address = address
self.student_id = student_id

def eat(self):
print("I am eating.")

def sleep(self):
print("I am sleeping.")

def print_info(self):
print("ID number:", self.id_num)
print("Name:", self.name)
print("Gender:", self.gender)
print("Age:", self.age)
print("Hometown:", self.hometown)
print("Address:", self.address)
print("Student ID:", self.student_id)

def study(self):
print("I am studying.")

class Teacher:
def __init__(self, id_num, name, gender, age, hometown, address, title):
self.id_num = id_num
self.name = name
self.gender = gender
self.age = age
self.hometown = hometown
self.address = address
self.title = title

def eat(self):
print("I am eating.")

def sleep(self):
print("I am sleeping.")

def print_info(self):
print("ID number:", self.id_num)
print("Name:", self.name)
print("Gender:", self.gender)
print("Age:", self.age)
print("Hometown:", self.hometown)
print("Address:", self.address)
print("Title:", self.title)

def teach(self):
print("I am teaching.")