python写完成代码，实现学生成绩录入系统升级版

Python编写一个学生成绩录入系统升级版，我们可以设计一个简单的命令行交互界面，支持添加、查看、修改和删除学生信息。这里是一个基础的示例：

class Student:
    def __init__(self, id, name, scores):
        self.id = id
        self.name = name
        self.scores = scores

class GradeSystem:
    def __init__(self):
        self.students = {}

    def add_student(self, id, name, scores):
        self.students[id] = Student(id, name, scores)

    def view_students(self):
        for id, student in self.students.items():
            print(f"ID: {id}, Name: {student.name}, Scores: {student.scores}")

    def update_score(self, id, new_score):
        if id in self.students:
            self.students[id].scores = new_score
            print("Score updated successfully.")
        else:
            print("Student not found.")

    def delete_student(self, id):
        if id in self.students:
            del self.students[id]
            print("Student deleted.")
        else:
            print("Student not found.")

# 创建grade_system实例并使用它
grade_system = GradeSystem()
while True:
    action = input("Enter action (add, view, update, delete, quit): ")
    if action == "quit":
        break
    elif action == "add":
        id = int(input("Enter student ID: "))
        name = input("Enter student name: ")
        scores = [float(score) for score in input("Enter scores separated by comma: ").split(",")]
        grade_system.add_student(id, name, scores)
    elif action == "view":
        grade_system.view_students()
    elif action == "update":
        id = int(input("Enter student ID to update: "))
        new_score = float(input("Enter new score: "))
        grade_system.update_score(id, new_score)
    elif action == "delete":
        id = int(input("Enter student ID to delete: "))
        grade_system.delete_student(id)
    else:
        print("Invalid action. Please try again.")

这个程序允许用户通过输入指令来操作学生信息，如添加新学生、查看所有学生、更新分数和删除学生。你可以根据需要增加更多功能，比如按成绩排序、查找特定学生等。