利用单向循环链表实现一个班级学生信息管理（数据录入、插入、删除、排序、查找

好的，以下是单向循环链表实现班级学生信息管理的代码示例。

class Student:
    def __init__(self, name, age, score):
        self.name = name
        self.age = age
        self.score = score
        self.next = None

class StudentList:
    def __init__(self):
        self.head = None

    # 添加学生信息
    def add_student(self, name, age, score):
        student = Student(name, age, score)
        if not self.head:
            self.head = student
            student.next = self.head
        else:
            current = self.head
            while current.next != self.head:
                current = current.next
            current.next = student
            student.next = self.head

    # 删除学生信息
    def remove_student(self, name):
        if not self.head:
            return False
        if self.head.name == name:
            if self.head == self.head.next:
                self.head = None
            else:
                current = self.head
                while current.next != self.head:
                    current = current.next
                current.next = self.head.next
                self.head = self.head.next
            return True
        current = self.head
        while current.next != self.head:
            if current.next.name == name:
                current.next = current.next.next
                return True
            current = current.next
        return False

    # 查找学生信息
    def find_student(self, name):
        if not self.head:
            return None
        if self.head.name == name:
            return self.head
        current = self.head
        while current.next != self.head:
            if current.next.name == name:
                return current.next
            current = current.next
        return None

    # 插入学生信息
    def insert_student(self, name, age, score, pos):
        student = Student(name, age, score)
        if not self.head:
            self.head = student
            student.next = self.head
            return True
        current = self.head
        count = 1
        while count < pos and current.next != self.head:
            current = current.next
            count += 1
        if count == pos:
            student.next = current.next
            current.next = student
            return True
        else:
            return False

    # 排序学生信息
    def sort_students(self, reverse=False):
        if not self.head:
            return
        current = self.head
        while current.next != self.head:
            inner_current = current.next
            while inner_current != self.head:
                if reverse:
                    if current.score < inner_current.score:
                        current.score, inner_current.score = inner_current.score, current.score
                        current.name, inner_current.name = inner_current.name, current.name
                        current.age, inner_current.age = inner_current.age, current.age
                else:
                    if current.score > inner_current.score:
                        current.score, inner_current.score = inner_current.score, current.score
                        current.name, inner_current.name = inner_current.name, current.name
                        current.age, inner_current.age = inner_current.age, current.age
                inner_current = inner_current.next
            current = current.next

    # 打印所有学生信息
    def print_students(self):
        if not self.head:
            print("No student found")
        else:
            current = self.head
            print(f"{'Name':<10} {'Age':<5} {'Score':<5}")
            print("-" * 25)
            print(f"{current.name:<10} {current.age:<5} {current.score:<5}")
            while current.next != self.head:
                current = current.next
                print(f"{current.name:<10} {current.age:<5} {current.score:<5}")

上述代码中，`Student` 类表示一个学生对象，包含了学生的姓名、年龄和分数，并且定义了一个指向下一个学生的指针 `next`。

`StudentList` 类表示一个班级学生信息管理类。在该类中定义了 `add_student`、`remove_student`、`find_student`、`insert_student`、`sort_students`、`print_students` 等方法，用于实现添加学生、删除学生、查找学生、插入学生、排序学生、打印所有学生信息等功能。

其中，采用单向循环链表来存储学生信息，头节点的指针 `head` 指向第一个学生，最后一个学生的指针 `next` 指向头节点，形成一个环形链表。

示例代码中提供了一些基本的操作，可以根据需求进行扩展。