<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，点击搜索按钮或者通过搜索框的内容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

好的，以下是添加搜索框、增删改功能和弹窗编辑功能的代码：

HTML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>

JavaScript代码：

// 定义全局变量
var contacts = []; // 通讯录数据
var modalMode = "add"; // 弹窗模式，初始为添加模式
var modalId; // 当前编辑的联系人id

// 页面加载完成后执行初始化函数
window.onload = function() {
  init();
}

// 初始化函数
function init() {
  // 获取本地存储的通讯录数据
  var contactsData = localStorage.getItem("contacts");
  if (contactsData) {
    contacts = JSON.parse(contactsData);
  }

  // 渲染表格和分页按钮
  renderTable(contacts);
  renderPageButtons(contacts);

  // 绑定事件
  document.querySelector("#search-input").addEventListener("input", searchContacts);
  document.querySelector(".add-btn").addEventListener("click", showModal);
  document.querySelector("#save-btn").addEventListener("click", saveContact);
  document.querySelector("#cancel-btn").addEventListener("click", hideModal);
  document.querySelector("#contact-list").addEventListener("click", handleContactClick);
}

// 渲染表格函数
function renderTable(data) {
  var tableBody = document.querySelector("#contact-list");
  tableBody.innerHTML = "";
  for (var i = 0; i < data.length; i++) {
    var contact = data[i];
    var tr = "<tr><td>" + contact.name + "</td><td>" + contact.phone + "</td><td>" + contact.email + "</td><td><button class='edit-btn' data-id='" + contact.id + "'>编辑</button><button class='delete-btn' data-id='" + contact.id + "'>删除</button></td></tr>";
    tableBody.insertAdjacentHTML("beforeend", tr);
  }
}

// 渲染分页按钮函数
function renderPageButtons(data) {
  var pageButtons = document.querySelector("#page-buttons");
  pageButtons.innerHTML = "";
  var pageCount = Math.ceil(data.length / 10);
  for (var i = 1; i <= pageCount; i++) {
    var button = "<button class='page-btn' data-page='" + i + "'>" + i + "</button>";
    pageButtons.insertAdjacentHTML("beforeend", button);
  }
}

// 搜索函数
function searchContacts() {
  var keyword = this.value.trim().toLowerCase();
  var filteredContacts = contacts.filter(function(contact) {
    return contact.name.toLowerCase().indexOf(keyword) !== -1 || contact.phone.indexOf(keyword) !== -1;
  });
  renderTable(filteredContacts);
  renderPageButtons(filteredContacts);
}

// 显示弹窗函数
function showModal() {
  document.querySelector("#name").value = "";
  document.querySelector("#phone").value = "";
  document.querySelector("#email").value = "";
  document.querySelector("#modal").style.display = "block";
}

// 隐藏弹窗函数
function hideModal() {
  document.querySelector("#modal").style.display = "none";
}

// 保存联系人函数
function saveContact(event) {
  event.preventDefault(); // 阻止默认提交事件

  var name = document.querySelector("#name").value.trim();
  var phone = document.querySelector("#phone").value.trim();
  var email = document.querySelector("#email").value.trim();

  if (name && phone && email) {
    if (modalMode === "add") {
      // 添加联系人
      var newContact = {
        id: Date.now().toString(),
        name: name,
        phone: phone,
        email: email
      };
      contacts.push(newContact);
      localStorage.setItem("contacts", JSON.stringify(contacts));
    } else {
      // 编辑联系人
      var contactIndex = contacts.findIndex(function(contact) {
        return contact.id === modalId;
      });
      if (contactIndex !== -1) {
        contacts[contactIndex].name = name;
        contacts[contactIndex].phone = phone;
        contacts[contactIndex].email = email;
        localStorage.setItem("contacts", JSON.stringify(contacts));
      }
    }

    renderTable(contacts);
    renderPageButtons(contacts);
    hideModal();
  }
}

// 处理联系人列表中的按钮点击事件
function handleContactClick(event) {
  if (event.target.classList.contains("edit-btn")) {
    // 编辑按钮被点击
    modalMode = "edit";
    modalId = event.target.getAttribute("data-id");
    var contact = contacts.find(function(contact) {
      return contact.id === modalId;
    });
    if (contact) {
      document.querySelector("#name").value = contact.name;
      document.querySelector("#phone").value = contact.phone;
      document.querySelector("#email").value = contact.email;
      showModal();
    }
  } else if (event.target.classList.contains("delete-btn")) {
    // 删除按钮被点击
    var confirmDelete = confirm("确定要删除这个联系人吗？");
    if (confirmDelete) {
      var contactId = event.target.getAttribute("data-id");
      var contactIndex = contacts.findIndex(function(contact) {
        return contact.id === contactId;
      });
      if (contactIndex !== -1) {
        contacts.splice(contactIndex, 1);
        localStorage.setItem("contacts", JSON.stringify(contacts));
        renderTable(contacts);
        renderPageButtons(contacts);
      }
    }
  }
}

// 处理分页按钮点击事件
document.addEventListener("click", function(event) {
  if (event.target.classList.contains("page-btn")) {
    var page = event.target.getAttribute("data-page");
    var startIndex = (page - 1) * 10;
    var endIndex = startIndex + 10;
    var pageData = contacts.slice(startIndex, endIndex);
    renderTable(pageData);
  }
});

CSS代码：

/* 弹出层样式 */
.modal {
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
  background-color: #fefefe;
  margin: 15% auto;
  padding: 20px;
  border: 1px solid #888;
  width: 50%;
}

.close {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}

/* 表格样式 */
table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  text-align: left;
  padding: 8px;
}

th {
  background-color: #333;
  color: white;
}

tr:nth-child(even) {
  background-color: #f2f2f2;
}

/* 分页按钮样式 */
#page-buttons {
  margin-top: 20px;
}

.page-btn {
  background-color: #4CAF50;
  border: none;
  color: white;
  padding: 10px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin-right: 5px;
  cursor: pointer;
}

.page-btn.active {
  background-color: #008CBA;
}

/* 搜索框样式 */
#search-input {
  margin: 20px 0;
  padding: 10px;
  border: none;
  border-bottom: 1px solid #ccc;
  width: 100%;
  box-sizing: border-box;
  font-size: 16px;
  color: #666;
}

#search-input:focus {
  outline: none;
  border-bottom: 1px solid #008CBA;
}

/* 添加、编辑、删除按钮样式 */
.add-btn {
  background-color: #4CAF50;
  border: none;
  color: white;
  padding: 10px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin-right: 5px;
  cursor: pointer;
}

.edit-btn,
.delete-btn {
  background-color: #008CBA;
  border: none;
  color: white;
  padding: 5px 10px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 14px;
  margin-right: 5px;
  cursor: pointer;
}

.edit-btn:hover,
.delete-btn:hover {
  background-color: #666;
}