<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，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，你需要在代码中添加以下功能：

1. 在搜索框上绑定一个事件监听器，当输入框中有内容输入时，筛选出匹配的联系人并进行渲染。

2. 在每个联系人的操作列中添加删除和编辑按钮，并为它们绑定事件监听器。

3. 当点击编辑按钮时，在弹出层中显示该联系人的信息，并将保存按钮改为更新按钮。

4. 当点击保存按钮时，将新的联系人信息保存到数据中并渲染页面。

5. 当点击更新按钮时，将编辑后的联系人信息更新到数据中并重新渲染页面。

下面是修改后的代码：

<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="update-btn" style="display: none;">更新</button>
      <button id="cancel-btn">取消</button>
    </form>
  </div>
</div>

<script>
  // 数据
  let contacts = [
    { name: "张三", phone: "13456789012", email: "zhangsan@example.com" },
    { name: "李四", phone: "15678901234", email: "lisi@example.com" },
    { name: "王五", phone: "18901234567", email: "wangwu@example.com" },
    { name: "赵六", phone: "13245678901", email: "zhaoliu@example.com" },
    { name: "钱七", phone: "17509876543", email: "qianqi@example.com" }
  ];

  // 渲染联系人列表
  function renderContacts(contacts) {
    const tbody = document.getElementById("contact-list");
    tbody.innerHTML = "";
    contacts.forEach((contact, index) => {
      const tr = document.createElement("tr");
      tr.innerHTML = `
        <td>${contact.name}</td>
        <td>${contact.phone}</td>
        <td>${contact.email}</td>
        <td>
          <button class="delete-btn" data-index="${index}">删除</button>
          <button class="edit-btn" data-index="${index}">编辑</button>
        </td>
      `;
      tbody.appendChild(tr);
    });
  }

  // 添加联系人
  function addContact(contact) {
    contacts.push(contact);
    renderContacts(contacts);
  }

  // 删除联系人
  function deleteContact(index) {
    contacts.splice(index, 1);
    renderContacts(contacts);
  }

  // 编辑联系人
  function editContact(index) {
    const contact = contacts[index];
    document.getElementById("name").value = contact.name;
    document.getElementById("phone").value = contact.phone;
    document.getElementById("email").value = contact.email;
    document.getElementById("save-btn").style.display = "none";
    document.getElementById("update-btn").style.display = "inline-block";
    document.getElementById("modal").style.display = "block";
    document.getElementById("update-btn").addEventListener("click", () => {
      updateContact(index);
    });
  }

  // 更新联系人
  function updateContact(index) {
    contacts[index].name = document.getElementById("name").value;
    contacts[index].phone = document.getElementById("phone").value;
    contacts[index].email = document.getElementById("email").value;
    document.getElementById("modal").style.display = "none";
    document.getElementById("update-btn").removeEventListener("click", updateContact);
    renderContacts(contacts);
  }

  // 绑定事件监听器
  document.querySelector(".add-btn").addEventListener("click", () => {
    document.getElementById("name").value = "";
    document.getElementById("phone").value = "";
    document.getElementById("email").value = "";
    document.getElementById("save-btn").style.display = "inline-block";
    document.getElementById("update-btn").style.display = "none";
    document.getElementById("modal").style.display = "block";
  });

  document.querySelector(".close").addEventListener("click", () => {
    document.getElementById("modal").style.display = "none";
  });

  document.querySelector("#cancel-btn").addEventListener("click", () => {
    document.getElementById("modal").style.display = "none";
  });

  document.getElementById("save-btn").addEventListener("click", (event) => {
    event.preventDefault();
    const contact = {
      name: document.getElementById("name").value,
      phone: document.getElementById("phone").value,
      email: document.getElementById("email").value
    };
    addContact(contact);
    document.getElementById("modal").style.display = "none";
  });

  document.getElementById("search-input").addEventListener("input", () => {
    const keyword = document.getElementById("search-input").value.trim();
    const filteredContacts = contacts.filter((contact) => {
      return contact.name.includes(keyword) || contact.phone.includes(keyword);
    });
    renderContacts(filteredContacts);
  });

  document.getElementById("contact-list").addEventListener("click", (event) => {
    const target = event.target;
    if (target.classList.contains("delete-btn")) {
      deleteContact(target.getAttribute("data-index"));
    } else if (target.classList.contains("edit-btn")) {
      editContact(target.getAttribute("data-index"));
    }
  });

  // 初始化
  renderContacts(contacts);
</script>