python_practice/class_review.py at main · karenkim7/python_practice · GitHub

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# Student.py
class Student:
    def __init__(self, name, student_id, year):
        self.name = name
        self.student_id = student_id
        self.year = year
        self.is_attending = True
        self.major = None
        self.remaining_school_break_terms = 7
        self.current_semester_remaining_credits = 18
        self.current_enrolling_courses = []

    def sign_up_course(self, course):
        if (self.is_attending):
            if (self.current_semester_remaining_credits > course.Credit     # 학점이 남을 때
                and course.student_count > 0                                # 해당 교과목 인원이 남을 때
                and course.available_year <= self.year):                    # 해당 교과목 수강 가능 학년일 때
                self.current_semester_remaining_credits -= course.Credit
                self.current_enrolling_courses.append(course)

    def take_school_break(self):
        if (self.is_attending):
            if (self.remaining_school_break_terms > 0):
                self.remaining_school_break_terms -= 1
                self.is_attending = False
                self.current_enrolling_courses.clear()
                self.current_semester_remaining_credits = 0

    def apply_major(self, major):
        if (self.major == None and self.is_attending):                      # 현재 전공이 없으며 재학 중일 때
            self.major = major

# print("Name: {}\nStudent ID: {}\nYear: {}".format(karen.name, karen.student_id, karen.year))
# print("Is Attending School?: {}\nMajor: {}".format(karen.is_attending, karen.major))
# print("Remaining School Break: {}".format(karen.remaining_school_break_terms))
# print("Current Semester Remaining Credits: {}".format(karen.current_semester_remaining_credits))

# professor.py
class Professor:
    def __init__(self, name, major):
        self.name = name
        self.major = major

    def consult_student(self, student):
        if (isinstance(student, Student)):
            if (student.major == self.major):
                print("Professor " + self.name + " consulted student " + student.name)

# main.py
karen = Student("Karen", "2020105689", 1)
# karen.take_school_break()
# if (karen.is_attending):
#     print(karen.name + " is attending school")
# else:
#     print(karen.name + " is taking a school break!")

karen.apply_major("SWC")
# if (karen.major != None):
#     print(karen.name + " is " + karen.major)
# else:
#     print(karen.name + " has no major")

sungwon = Professor("Sungwon", "SWC")
sungwon.consult_student(karen)

# 이름과 학과는 중복이 되는데 합쳐서 새로운 클래스를 만들고 학생과 교수가 이 클래스를 상속받도록 한다.

# class Person:
#     def __init__(self, name, major = None):
#         self.name = name
#         self.major = major

# class Student(Person):
#     def __init__(self, name, student_id, year):
#         super().__init__(name)
#         self.student_id = student_id
#         self.year = year
#         self.is_attending = True
#         self.remaining_school_break_terms = 6
#         self.current_semester_remaining_credits = 18
#         self.current_enrolling_courses = []
#     ...

# class Professor(Person):
#     def __init__(self, name, major):
#         super().__init__(name, major)
#     ...

# isInstance(a,b) 함수는 a라는 인스턴스가 b라는 클래스에서 만들어졌는지 알려줌