### 正式严谨风 用Python编写学生成绩管理系统：具备多种信息操作与成绩查询功能

可以使用Python的面向对象编程思想，设计一个学生类，包含学生的姓名、学号、课程成绩等属性，然后再设计一个学生管理系统类，包含添加学生、删除学生、修改学生信息、查询学生信息、查询课程平均分、查询学生成绩等方法。 以下是一个简单的示例代码： ```python class Student: def __init__(self, name, id, scores): self.name = name self.id = id self.scores = scores class StudentManagementSystem: def __init__(self): self.students = [] def add_student(self, student): self.students.append(student) def delete_student(self, id): for student in self.students: if student.id == id: self.students.remove(student) return True return False def modify_student(self, id, name=None, scores=None): for student in self.students: if student.id == id: if name: student.name = name if scores: student.scores = scores return True return False def search_student(self, id): for student in self.students: if student.id == id: return student return None def search_course_average(self): total_score = 0 total_count = 0 for student in self.students: total_score += sum(student.scores) total_count += len(student.scores) return total_score / total_count def search_student_score(self, id): for student in self.students: if student.id == id: return student.scores return None ``` 使用示例： ```python # 创建学生管理系统对象 sms = StudentManagementSystem() # 添加学生 s1 = Student('张三', '001', [80, 90, 85]) sms.add_student(s1) # 查询学生信息 s = sms.search_student('001') print(s.name, s.id, s.scores) # 修改学生信息 sms.modify_student('001', name='李四', scores=[85, 90, 95]) s = sms.search_student('001') print(s.name, s.id, s.scores) # 查询课程平均分 avg_score = sms.search_course_average() print(avg_score) # 查询学生成绩 scores = sms.search_student_score('001') print(scores) # 删除学生 sms.delete_student('001') ```