如何从链表中删除某个节点所持有的数据？

class ListNode:
    def __init__(self, data=None):
        self.data = data
        self.next = None

def delete_node(head, target):
    # 遍历链表，找到目标节点的前一个节点
    prev = None
    curr = head
    while curr and curr.data != target:
        prev = curr
        curr = curr.next

    # 如果找到了目标节点
    if curr:
        # 将前一个节点的next指针指向目标节点的下一个节点
        if prev:
            prev.next = curr.next
        else:
            head = curr.next

        # 释放目标节点的内存空间
        curr.next = None

    return head