学生的屈性：姓名、性别、年龄、学号、年级、专业：学生的行为：吃饭、娱乐、学习、写作业、 教师的属性：姓名、性别、年龄、工号、职称、部门：教师的行为：吃饭、娱乐、授课、改作业。 请设计出对应的继承体系，并在主类中完成测试

以下是对应的继承体系设计：

class Person:
    def __init__(self, name, gender, age):
        self.name = name
        self.gender = gender
        self.age = age
        
    def eat(self):
        print(f"{self.name} is eating.")
        
    def play(self):
        print(f"{self.name} is playing.")
        

class Student(Person):
    def __init__(self, name, gender, age, student_id, grade, major):
        super().__init__(name, gender, age)
        self.student_id = student_id
        self.grade = grade
        self.major = major
        
    def study(self):
        print(f"{self.name} is studying.")
        
    def do_homework(self):
        print(f"{self.name} is doing homework.")
        

class Teacher(Person):
    def __init__(self, name, gender, age, teacher_id, title, department):
        super().__init__(name, gender, age)
        self.teacher_id = teacher_id
        self.title = title
        self.department = department
        
    def teach(self):
        print(f"{self.name} is teaching.")
        
    def grade_homework(self):
        print(f"{self.name} is grading homework.")

接下来我们进行测试：

student = Student("Alice", "female", 18, "20210001", "freshman", "Computer Science")
print(student.name)  # Alice
print(student.student_id)  # 20210001
student.eat()  # Alice is eating.
student.study()  # Alice is studying.

teacher = Teacher("Bob", "male", 35, "1001", "professor", "Computer Science")
print(teacher.name)  # Bob
print(teacher.title)  # professor
teacher.eat()  # Bob is eating.
teacher.teach()  # Bob is teaching.

输出结果如下：

Alice
20210001
Alice is eating.
Alice is studying.
Bob
professor
Bob is eating.
Bob is teaching.