在Python中动态更改BST的比较函数

class Node:
    def __init__(self, value):
        self.value = value
        self.left = None
        self.right = None

class BST:
    def __init__(self):
        self.root = None

    def insert(self, value):
        if self.root is None:
            self.root = Node(value)
        else:
            self._insert_recursive(self.root, value)

    def _insert_recursive(self, node, value):
        if value < node.value:
            if node.left is None:
                node.left = Node(value)
            else:
                self._insert_recursive(node.left, value)
        else:
            if node.right is None:
                node.right = Node(value)
            else:
                self._insert_recursive(node.right, value)

    def search(self, value):
        return self._search_recursive(self.root, value)

    def _search_recursive(self, node, value):
        if node is None or node.value == value:
            return node
        if value < node.value:
            return self._search_recursive(node.left, value)
        return self._search_recursive(node.right, value)

    def inorder_traversal(self):
        result = []
        self._inorder_traversal_recursive(self.root, result)
        return result

    def _inorder_traversal_recursive(self, node, result):
        if node:
            self._inorder_traversal_recursive(node.left, result)
            result.append(node.value)
            self._inorder_traversal_recursive(node.right, result)

# 创建一个BST对象
bst = BST()

# 插入节点
bst.insert(5)
bst.insert(3)
bst.insert(7)
bst.insert(2)
bst.insert(4)
bst.insert(6)
bst.insert(8)

# 执行中序遍历
print(bst.inorder_traversal())  # 输出：[2, 3, 4, 5, 6, 7, 8]

# 搜索节点
node = bst.search(6)
if node:
    print("节点找到：", node.value)
else:
    print("节点未找到")

def _insert_recursive(self, node, value):
    if abs(value) < abs(node.value):
        # 插入逻辑...

def _search_recursive(self, node, value):
    if node is None or abs(value) == abs(node.value):
        # 搜索逻辑...