<h1>通讯录</h1> <button class="add-btn">添加联系人</button> <input type="text" id="search-input" placeholder="搜索姓名或电话"> <table> <thead> <tr> <th>姓名</th> <th>电话</th> <th>邮箱</th> <th>操作</th> </tr> </thead> <tbody id="contact-list"> <!-- 数据渲染 --> </tbody> </table> <!-- 分页按钮 --> <div id="page-buttons"></div> <!-- 弹出层，用于添加或编辑联系人 --> <div id="modal" class="modal" style="display: none;"> <div class="modal-content"> <span class="close">×</span> <form> <div class="form-group"> <label for="name">姓名</label> <input type="text" id="name" name="name" required> </div> <div class="form-group"> <label for="phone">电话</label> <input type="text" id="phone" name="phone" required> </div> <div class="form-group"> <label for="email">邮箱</label> <input type="text" id="email" name="email" required> </div> <button id="save-btn">保存</button> <button id="cancel-btn">取消</button> </form> </div> </div>帮我加入一个搜索框，点击搜索按钮可以查找到查找的内容；让数据具有添加删除和编辑的功能，编辑的时候增加弹窗进行编辑；添加翻页的功能，每一页最多存放五条数据

好的，以下是加入搜索框、添加删除和编辑功能、以及翻页功能的完整代码：

<h1>通讯录</h1>
<button class="add-btn">添加联系人</button>
<input type="text" id="search-input" placeholder="搜索姓名或电话">
<table>
  <thead>
    <tr>
      <th>姓名</th>
      <th>电话</th>
      <th>邮箱</th>
      <th>操作</th>
    </tr>
  </thead>
  <tbody id="contact-list">
    <!-- 数据渲染 -->
  </tbody>
</table>
<!-- 分页按钮 -->
<div id="page-buttons"></div>

<!-- 弹出层，用于添加或编辑联系人 -->
<div id="modal" class="modal" style="display: none;">
  <div class="modal-content">
    <span class="close">×</span>
    <form>
      <div class="form-group">
        <label for="name">姓名</label>
        <input type="text" id="name" name="name" required>
      </div>
      <div class="form-group">
        <label for="phone">电话</label>
        <input type="text" id="phone" name="phone" required>
      </div>
      <div class="form-group">
        <label for="email">邮箱</label>
        <input type="text" id="email" name="email" required>
      </div>
      <button id="save-btn">保存</button>
      <button id="cancel-btn">取消</button>
    </form>
  </div>
</div>

<script>
  // 初始化通讯录数组
  let contactData = [
    { name: '张三', phone: '123456789', email: 'zhangsan@example.com' },
    { name: '李四', phone: '987654321', email: 'lisi@example.com' },
    { name: '王五', phone: '456123789', email: 'wangwu@example.com' },
    { name: '赵六', phone: '789654123', email: 'zhaoliu@example.com' },
    { name: '钱七', phone: '321456987', email: 'qianqi@example.com' },
    { name: '孙八', phone: '654321987', email: 'sunba@example.com' },
    { name: '周九', phone: '159753456', email: 'zhoujiu@example.com' },
    { name: '吴十', phone: '753159456', email: 'wushi@example.com' },
  ];

  // 每页显示的数据条数
  const pageSize = 5;

  // 当前页码
  let currentPage = 1;

  // 根据当前页码渲染数据
  function renderData() {
    const startIndex = (currentPage - 1) * pageSize;
    const endIndex = currentPage * pageSize;
    const dataToRender = contactData.slice(startIndex, endIndex);

    let html = '';
    dataToRender.forEach((contact, index) => {
      html += `
        <tr>
          <td>${contact.name}</td>
          <td>${contact.phone}</td>
          <td>${contact.email}</td>
          <td>
            <button class="edit-btn" data-index="${startIndex + index}">编辑</button>
            <button class="delete-btn" data-index="${startIndex + index}">删除</button>
          </td>
        </tr>
      `;
    });

    document.querySelector('#contact-list').innerHTML = html;
  }

  // 根据当前页码渲染分页按钮
  function renderPageButtons() {
    const totalPage = Math.ceil(contactData.length / pageSize);

    let html = '';
    for (let i = 1; i <= totalPage; i++) {
      html += `<button class="page-btn ${i === currentPage ? 'active' : ''}" data-page="${i}">${i}</button>`;
    }

    document.querySelector('#page-buttons').innerHTML = html;
  }

  // 根据搜索框输入的值筛选数据
  function searchContacts() {
    const searchInput = document.querySelector('#search-input').value.trim().toLowerCase();

    if (!searchInput) {
      currentPage = 1;
      renderData();
      renderPageButtons();
      return;
    }

    const filteredData = contactData.filter(contact => {
      return contact.name.toLowerCase().includes(searchInput) || contact.phone.toLowerCase().includes(searchInput);
    });

    if (filteredData.length === 0) {
      document.querySelector('#contact-list').innerHTML = '<tr><td colspan="4">没有找到匹配的联系人</td></tr>';
      document.querySelector('#page-buttons').innerHTML = '';
      return;
    }

    contactData = filteredData;
    currentPage = 1;
    renderData();
    renderPageButtons();
  }

  // 添加联系人弹窗
  const modal = document.querySelector('#modal');
  const addBtn = document.querySelector('.add-btn');
  const closeBtn = document.querySelector('.close');
  const saveBtn = document.querySelector('#save-btn');
  const cancelBtn = document.querySelector('#cancel-btn');
  const nameInput = document.querySelector('#name');
  const phoneInput = document.querySelector('#phone');
  const emailInput = document.querySelector('#email');

  function openModal() {
    nameInput.value = '';
    phoneInput.value = '';
    emailInput.value = '';

    modal.style.display = 'block';
  }

  function closeModal() {
    modal.style.display = 'none';
  }

  function saveContact() {
    const name = nameInput.value.trim();
    const phone = phoneInput.value.trim();
    const email = emailInput.value.trim();

    if (!name || !phone || !email) {
      alert('请填写完整信息');
      return;
    }

    contactData.push({ name, phone, email });

    closeModal();
    searchContacts();
  }

  addBtn.addEventListener('click', openModal);
  closeBtn.addEventListener('click', closeModal);
  cancelBtn.addEventListener('click', closeModal);
  saveBtn.addEventListener('click', saveContact);

  // 编辑联系人弹窗
  let editingIndex = null;

  function openEditModal(index) {
    const contact = contactData[index];
    nameInput.value = contact.name;
    phoneInput.value = contact.phone;
    emailInput.value = contact.email;

    modal.style.display = 'block';
    editingIndex = index;
  }

  function saveEditedContact() {
    const name = nameInput.value.trim();
    const phone = phoneInput.value.trim();
    const email = emailInput.value.trim();

    if (!name || !phone || !email) {
      alert('请填写完整信息');
      return;
    }

    contactData[editingIndex] = { name, phone, email };
    editingIndex = null;

    closeModal();
    searchContacts();
  }

  document.querySelector('#contact-list').addEventListener('click', event => {
    if (event.target.matches('.edit-btn')) {
      const index = parseInt(event.target.dataset.index);
      openEditModal(index);
    } else if (event.target.matches('.delete-btn')) {
      const index = parseInt(event.target.dataset.index);
      contactData.splice(index, 1);
      searchContacts();
    }
  });

  // 翻页
  document.querySelector('#page-buttons').addEventListener('click', event => {
    if (event.target.matches('.page-btn')) {
      currentPage = parseInt(event.target.dataset.page);
      renderData();
      renderPageButtons();
    }
  });

  // 初始化页面
  searchContacts();
</script>