Develop a python class named Enroll to simulate the course registration process. It should include (1) class attribute: enrollmentcount which counts the total number of enrollments, and initiates to 0 (2) static method named buildcourselist(filepath) that creates a course list from a text file that has such text Id Title Credit CSCI120 Elements of Computing 4 INFO230 Intro to Web Design 3 CSCI230 System Architecture 3 (the column separator has 2+ spaces, 列分隔用2+空格, file attached) The method should return a python list of Course objects (hint: A. open file for read, new a list, read line by line, for each line, create a Course object and insert into the list. Ignore the first line. B. a static method is also called class method, does not take the self argument ) (3) static method named buildstudentlist(filepath) that creates a Student list from a text file that has such text Id Name D10000000 Zhang Hong D10000001 Chen Huayue The method should return a python list of Student objects

时间: 2024-01-28 11:03:25 浏览: 33
Sure, here's an example implementation of the Enroll class in Python: ```python class Course: def __init__(self, course_id, title, credit): self.course_id = course_id self.title = title self.credit = credit class Student: def __init__(self, student_id, name): self.student_id = student_id self.name = name class Enroll: enrollmentcount = 0 @staticmethod def buildcourselist(filepath): course_list = [] with open(filepath, 'r') as f: lines = f.readlines()[1:] # Ignore header line for line in lines: data = line.strip().split(' ') course = Course(data[0], data[1], int(data[2])) course_list.append(course) return course_list @staticmethod def buildstudentlist(filepath): student_list = [] with open(filepath, 'r') as f: lines = f.readlines() for line in lines: data = line.strip().split(' ') student = Student(data[0], data[1]) student_list.append(student) return student_list ``` This implementation defines the `Enroll` class with a class attribute `enrollmentcount` that counts the total number of enrollments. It also includes two static methods: `buildcourselist` and `buildstudentlist`, which read data from text files and create lists of `Course` and `Student` objects respectively. To use this implementation, you can call the static methods on the `Enroll` class, for example: ```python courses = Enroll.buildcourselist('courses.txt') students = Enroll.buildstudentlist('students.txt') ``` Assuming that `courses.txt` and `students.txt` are text files in the format described in the question, this code will create lists of `Course` and `Student` objects that you can use for simulating the course registration process.

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补全以下代码private String cid;// Course id, e.g., CS110. private String name;// Course name, e.g., Introduce to Java Programming. private Integer credit;// Credit of this course private GradingSchema gradingSchema; //Grading schema of this course // enum GradingSchema{FIVE_LEVEL, PASS_FAIL} private Integer capacity;// Course capacity. private Integer leftCapacity;// Course capacity left. You should update the left capacity when enrolling students. private Set<Timeslot> timeslots;// One course may have one or more timeslots. e.g., a lecture in Monday's 10:20-12:10, and a lab in Tuesday's 14:00-15:50. public Course(String cid, String name, Integer credit, GradingSchema gradingSchema, Integer capacity) // constructor public void addTimeslot(Timeslot timeslot) //Record a timeslot for this course private Integer id;// A unique student id, should be an 8-digit integer: Undergraduates' ids should start with 1; Postgraduates' ids should start with 3. e.g., 12213199. private String name;// Student’s name private Map<Course, Grade> courses;// Enrolled courses, using Map structure to store course and its grade as a pair. Grade is an enum type enum Grade{PASS,FAIL,A,B,C,D,F}with an attribute: Double gradePoint protected Student(Integer id, String name) // constructor public abstract boolean canGraduate() // Checks if this student satisfies all the graduating conditions. Hint: you are allowed to change this abstract method into non-abstract to check if the student satisfies the common graduation conditions. public void enroll(Course course) // Tries to enroll the course, do some checks before enrolling. public void recordGrade(Course course, Grade grade)// Records the grade of a course that is current learning. public double getGpa() // Calculates the GPA for this student. public UndergraduateStudent(Integer id, String name)// constructor public boolean canGraduate() //Additional graduating conditions for undergraduate students public PostgraduateStudent(Integer id, String name)// constructor public boolean canGraduate() //Additional graduating conditions for postgraduate students

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