处理选项卡栏控制器视图按钮和代码

<div class="tab">
  <button class="tab-button" onclick="openTab(event, 'tab1')">Tab 1</button>
  <button class="tab-button" onclick="openTab(event, 'tab2')">Tab 2</button>
  <button class="tab-button" onclick="openTab(event, 'tab3')">Tab 3</button>
</div>

<div id="tab1" class="tab-content">
  <h3>Tab 1 Content</h3>
  <p>This is the content for Tab 1.</p>
</div>

<div id="tab2" class="tab-content">
  <h3>Tab 2 Content</h3>
  <p>This is the content for Tab 2.</p>
</div>

<div id="tab3" class="tab-content">
  <h3>Tab 3 Content</h3>
  <p>This is the content for Tab 3.</p>
</div>

.tab {
  overflow: hidden;
}

.tab-button {
  background-color: #f1f1f1;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 10px 20px;
}

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

.tab-content {
  display: none;
  padding: 20px;
  border: 1px solid #ccc;
}

.tab-content h3 {
  margin-top: 0;
}

function openTab(event, tabName) {
  var i, tabContent, tabButton;
  
  tabContent = document.getElementsByClassName("tab-content");
  for (i = 0; i < tabContent.length; i++) {
    tabContent[i].style.display = "none";
  }
  
  tabButton = document.getElementsByClassName("tab-button");
  for (i = 0; i < tabButton.length; i++) {
    tabButton[i].className = tabButton[i].className.replace(" active", "");
  }
  
  document.getElementById(tabName).style.display = "block";
  event.currentTarget.className += " active";
}