python学生选课系统代码

以下是一个简单的Python学生选课系统代码，其中包括列举所有课程、选择课程、学生上课和获取课程返回等功能：

class Course:
    def __init__(self, name, price):
        self.name = name
        self.price = price

    def work(self):
        return "上课中..."

class Student:
    def __init__(self, username, password, gender, age):
        self.username = username
        self.password = password
        self.gender = gender
        self.age = age
        self.courses = []
        self.classes = {}

    def show_courses(self):
        print("所有课程：")
        for course in self.courses:
            print(course.name)

    def select_course(self, course):
        self.courses.append(course)
        self.classes[course] = []

    def attend_class(self, course):
        self.classes[course].append("上课中...")
        print("上课中...")

    def get_course_return(self, course):
        ret = course.work()
        print("获取课程的返回：", ret)
        self.asset += course.price

course1 = Course("语文", 100)
course2 = Course("数学", 120)
course3 = Course("英语", 150)

student1 = Student("Tom", "123456", "男", 18)
student1.select_course(course1)
student1.select_course(course2)
student1.show_courses()
student1.attend_class(course1)
student1.get_course_return(course1)