实现二叉树的创建及线索化的完整代码，要求如下: 1.创建二叉树 2.中序递归和非递归遍历 3.中序线索化二叉树 4.利用中序线索化二叉树实现二叉树的中序遍历 5.菜单提示操作

首先，让我们逐步介绍如何实现这些功能：

**1. 创建二叉树：**

template <typename T>
struct TreeNode {
    T val;
    TreeNode* left;
    TreeNode* right;
    TreeNode(T x) : val(x), left(nullptr), right(nullptr) {}
};

// 创建二叉树（例如从数组或用户输入）
void createBinaryTree(TreeNode<T>*& root, const std::vector<T>& values) {
    if (values.empty()) return;
    root = new TreeNode(values);
    int i = 1;
    for (auto it = values.begin(); it != values.end(); ++it) {
        if (*it < root->val) {
            createBinaryTree(root->left, std::vector<T>(*it, values[i++]));
        } else {
            createBinaryTree(root->right, std::vector<T>(*it, values[i++]));
        }
    }
}

**2. 中序递归遍历：**

void inorderTraversal(TreeNode<T>* root) {
    if (root == nullptr) return;
    inorderTraversal(root->left);
    std::cout << root->val << " ";
    inorderTraversal(root->right);
}

**3. 中序非递归遍历（使用栈）：**

std::vector<T> inorderTraversalNonRecursive(TreeNode<T>* root) {
    std::vector<T> result;
    stack<TreeNode<T>*> s;
    TreeNode<T>* curr = root;

    while (curr != nullptr || !s.empty()) {
        while (curr != nullptr) {
            s.push(curr);
            curr = curr->left;
        }
        curr = s.top();
        s.pop();
        result.push_back(curr->val);
        curr = curr->right;
    }
    return result;
}

**4. 中序线索化二叉树：**

void线索化(TreeNode<T>*& root) {
    if (root == nullptr) return;
   线索化(root->left);
    root->left = (root->left == nullptr) ? nullptr : &(*root->left).successor;
    root->right = &(*root).successor;
    root->successor = nullptr;
    if (root->left != nullptr) root->left->predecessor = root;
    if (root == root->parent->right) root->parent->successor = root;
}

// 非线索化（用于测试）
void unleadify(TreeNode<T>*& root) {
    if (root == nullptr) return;
    root->left = root->left->predecessor;
    root->right = root->right->predecessor;
    root->predecessor = nullptr;
    root->successor = nullptr;
}

**5. 菜单提示操作：**

void menu() {
    int choice;
    do {
        cout << "1. Create binary tree\n";
        cout << "2. Inorder traversal (recursive)\n";
        cout << "3. Inorder traversal (non-recursive)\n";
        cout << "4.线索化二叉树\n";
        cout << "5. 非线索化二叉树\n";
        cout << "6. Exit\n";
        cin >> choice;
        switch (choice) {
            // 添加对应操作的实现
        }
    } while (choice != 6);
}