Decorator phương thức lớp

class Student:
    school_name = "Python Academy"
    student_count = 0
    
    def __init__(self, name):
        self.name = name
        Student.student_count += 1
    
    @classmethod
    def get_school_info(cls):
        return f"School: {cls.school_name}, Students: {cls.student_count}"
    
    @classmethod
    def create_guest_student(cls):
        return cls("Guest")

info = Student.get_school_info()
print(info)

alice = Student("Alice")
bob = Student("Bob")

updated_info = Student.get_school_info()
print(updated_info)

guest = Student.create_guest_student()
print(guest.name)
print(Student.get_school_info())

School: Python Academy, Students: 0
School: Python Academy, Students: 2
Guest
School: Python Academy, Students: 3

alice = Student("Alice")
info_from_instance = alice.get_school_info()
print(info_from_instance)

School: Python Academy, Students: 1