用Python代码设计一套学生成绩管理系 统(学生人数至少为10人)，要求满足以下要求: 程序运行后，需要显示系统主菜单: --主菜单------- 1、 录入学生信息 查找学生信息 2- 3、 删除学生信息 4、 修改学生信息 5、 学生成绩统计 6 退出系统 按照主菜单内容，对学生成绩进行相关操作并给出对应显示， 这里给出示例:请选择功能:1请输入学生学号:请输入学生姓名:请输入学生高数成绩: 请输入学生英语成绩: 请输入学生Python 成绩: 请输入学生C语言成绩:请输入学生机器学习成绩: 录入完毕?[YN:(输入Y，则询问下一个选择的功能;输入 N，则开始输入下一个学生的信息和成绩。) 在功能2下，则可以根据学生姓名或者是学生学号查找学生信息， 并将其所有成绩进行输出显示。 在功能5下，需要进行: a)计算每个学生所有课程的总成绩和平均分， b)每一门课程中所有学生的平均分 c) 将所有汇总信息保存到一个.csv文件中

以下是基于Python的学生成绩管理系统的代码实现： ```python import csv class Student: def __init__(self, id, name, math_score, eng_score, py_score, c_score, ml_score): self.id = id self.name = name self.math_score = math_score self.eng_score = eng_score self.py_score = py_score self.c_score = c_score self.ml_score = ml_score def get_total_score(self): return self.math_score + self.eng_score + self.py_score + self.c_score + self.ml_score def get_avg_score(self): return self.get_total_score() / 5 class Scoresheet: def __init__(self): self.students = [] def add_student(self, student): self.students.append(student) def search_student_by_id(self, id): for student in self.students: if student.id == id: return student return None def search_student_by_name(self, name): for student in self.students: if student.name == name: return student return None def remove_student_by_id(self, id): for student in self.students: if student.id == id: self.students.remove(student) return True return False def modify_student_by_id(self, id, name, math_score, eng_score, py_score, c_score, ml_score): for student in self.students: if student.id == id: student.name = name student.math_score = math_score student.eng_score = eng_score student.py_score = py_score student.c_score = c_score student.ml_score = ml_score return True return False def get_total_avg_score(self): total_score = 0 for student in self.students: total_score += student.get_total_score() return total_score / len(self.students) def get_math_avg_score(self): math_score = 0 for student in self.students: math_score += student.math_score return math_score / len(self.students) def get_eng_avg_score(self): eng_score = 0 for student in self.students: eng_score += student.eng_score return eng_score / len(self.students) def get_py_avg_score(self): py_score = 0 for student in self.students: py_score += student.py_score return py_score / len(self.students) def get_c_avg_score(self): c_score = 0 for student in self.students: c_score += student.c_score return c_score / len(self.students) def get_ml_avg_score(self): ml_score = 0 for student in self.students: ml_score += student.ml_score return ml_score / len(self.students) def export_to_csv(self, filename): with open(filename, 'w', newline='') as csvfile: writer = csv.writer(csvfile) writer.writerow(['学号', '姓名', '高数成绩', '英语成绩', 'Python成绩', 'C语言成绩', '机器学习成绩']) for student in self.students: writer.writerow([student.id, student.name, student.math_score, student.eng_score, student.py_score, student.c_score, student.ml_score]) def get_input(prompt, input_type=None): while True: try: if input_type: value = input_type(input(prompt)) else: value = input(prompt) return value except: print('输入的数据类型不正确，请重新输入！') scoresheet = Scoresheet() while True: print('---主菜单---') print('1、录入学生信息') print('2、查找学生信息') print('3、删除学生信息') print('4、修改学生信息') print('5、学生成绩统计') print('6、退出系统') choice = get_input('请选择功能：', int) if choice == 1: while True: id = get_input('请输入学生学号：') name = get_input('请输入学生姓名：') math_score = get_input('请输入学生高数成绩：', float) eng_score = get_input('请输入学生英语成绩：', float) py_score = get_input('请输入学生Python成绩：', float) c_score = get_input('请输入学生C语言成绩：', float) ml_score = get_input('请输入学生机器学习成绩：', float) student = Student(id, name, math_score, eng_score, py_score, c_score, ml_score) scoresheet.add_student(student) is_finished = input('录入完毕？[Y/N]：') if is_finished.lower() == 'y': break elif choice == 2: while True: search_type = get_input('请选择查找类型（1-学号，2-姓名）：', int) if search_type == 1: id = get_input('请输入要查找的学生学号：') student = scoresheet.search_student_by_id(id) if student: print(f'学号：{student.id}，姓名：{student.name}，高数成绩：{student.math_score}，英语成绩：{student.eng_score}，Python成绩：{student.py_score}，C语言成绩：{student.c_score}，机器学习成绩：{student.ml_score}') else: print('未找到该学生信息！') elif search_type == 2: name = get_input('请输入要查找的学生姓名：') student = scoresheet.search_student_by_name(name) if student: print(f'学号：{student.id}，姓名：{student.name}，高数成绩：{student.math_score}，英语成绩：{student.eng_score}，Python成绩：{student.py_score}，C语言成绩：{student.c_score}，机器学习成绩：{student.ml_score}') else: print('未找到该学生信息！') else: print('输入的查找类型不正确，请重新输入！') is_continue = input('是否继续查找？[Y/N]：') if is_continue.lower() != 'y': break elif choice == 3: while True: id = get_input('请输入要删除的学生学号：') if scoresheet.remove_student_by_id(id): print('删除成功！') else: print('未找到该学生信息！') is_continue = input('是否继续删除？[Y/N]：') if is_continue.lower() != 'y': break elif choice == 4: while True: id = get_input('请输入要修改的学生学号：') name = get_input('请输入学生姓名：') math_score = get_input('请输入学生高数成绩：', float) eng_score = get_input('请输入学生英语成绩：', float) py_score = get_input('请输入学生Python成绩：', float) c_score = get_input('请输入学生C语言成绩：', float) ml_score = get_input('请输入学生机器学习成绩：', float) if scoresheet.modify_student_by_id(id, name, math_score, eng_score, py_score, c_score, ml_score): print('修改成功！') else: print('未找到该学生信息！') is_continue = input('是否继续修改？[Y/N]：') if is_continue.lower() != 'y': break elif choice == 5: total_avg_score = scoresheet.get_total_avg_score() math_avg_score = scoresheet.get_math_avg_score() eng_avg_score = scoresheet.get_eng_avg_score() py_avg_score = scoresheet.get_py_avg_score() c_avg_score = scoresheet.get_c_avg_score() ml_avg_score = scoresheet.get_ml_avg_score() print(f'所有学生的总平均分：{total_avg_score:.2f}') print(f'高数的平均分：{math_avg_score:.2f}') print(f'英语的平均分：{eng_avg_score:.2f}') print(f'Python的平均分：{py_avg_score:.2f}') print(f'C语言的平均分：{c_avg_score:.2f}') print(f'机器学习的平均分：{ml_avg_score:.2f}') filename = get_input('请输入导出的文件名：') scoresheet.export_to_csv(filename) print(f'成绩已导出到{filename}文件中！') elif choice == 6: print('谢谢使用！') break else: print('输入的菜单编号不正确，请重新输入！') ```