编写一组程序，基于单链表，用头插法建表，实现某班学生姓名数据的建表、展示、查找，定位，插入，删除、判定表空、求表长等操作用python的解题思路

首先，在Python中，我们可以创建一个简单的单链表结构来存储学生姓名数据。我们将设计一个`Node`类作为节点，包含一个名字属性和一个指向下一个节点的指针，然后创建一个`StudentList`类来管理整个链表。

class Node:
    def __init__(self, name=None):
        self.name = name
        self.next = None

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

    # 插入新学生到链表头部
    def insert_at_head(self, name):
        new_node = Node(name)
        new_node.next = self.head
        self.head = new_node

    # 展示所有学生
    def display(self):
        elements = []
        current = self.head
        while current:
            elements.append(current.name)
            current = current.next
        print("学生列表:", elements)

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

    # 定位学生位置
    def position_of_student(self, name):
        current = self.head
        position = 0
        while current and current.name != name:
            current = current.next
            position += 1
        if current:
            return position
        else:
            return -1

    # 删除指定学生
    def delete_student(self, name):
        if self.head is None or self.head.name == name:
            self.head = self.head.next
            return

        prev = None
        current = self.head
        while current and current.name != name:
            prev = current
            current = current.next

        if current:
            prev.next = current.next

    # 判定链表是否为空
    def is_empty(self):
        return self.head is None

    # 求链表长度
    def length(self):
        count = 0
        current = self.head
        while current:
            count += 1
            current = current.next
        return count