js实现tab分页

<div class="tabs">
  <button class="tab-button active" data-tab="tab1">Tab 1</button>
  <button class="tab-button" data-tab="tab2">Tab 2</button>
  <button class="tab-button" data-tab="tab3">Tab 3</button>

  <div class="tab-content active" id="tab1">
    Content for Tab 1
  </div>
  <div class="tab-content" id="tab2">
    Content for Tab 2
  </div>
  <div class="tab-content" id="tab3">
    Content for Tab 3
  </div>
</div>

.tabs {
  width: 100%;
}

.tab-button {
  padding: 10px;
  cursor: pointer;
  background-color: #f1f1f1;
  border: none;
  outline: none;
  transition: background-color 0.3s;
}

.tab-button.active {
  background-color: #ddd;
}

.tab-content {
  display: none;
  padding: 10px;
  border: 1px solid #ddd;
}

.tab-content.active {
  display: block;
}

document.addEventListener('DOMContentLoaded', function() {
  const tabButtons = document.querySelectorAll('.tab-button');
  const tabContents = document.querySelectorAll('.tab-content');

  tabButtons.forEach(button => {
    button.addEventListener('click', function() {
      const targetTab = this.getAttribute('data-tab');

      // 移除所有按钮的active类
      tabButtons.forEach(btn => btn.classList.remove('active'));
      // 添加当前按钮的active类
      this.classList.add('active');

      // 隐藏所有内容
      tabContents.forEach(content => content.classList.remove('active'));
      // 显示目标内容
      document.getElementById(targetTab).classList.add('active');
    });
  });
});