在代码中创建的选项卡页上执行方法

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

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

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

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

.tab {
  overflow: hidden;
}

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

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

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

.tabcontent {
  display: none;
  padding: 20px;
}

function openTab(event, tabName) {
  var i, tabcontent, tablinks;
  
  tabcontent = document.getElementsByClassName("tabcontent");
  for (i = 0; i < tabcontent.length; i++) {
    tabcontent[i].style.display = "none";
  }
  
  tablinks = document.getElementsByClassName("tablinks");
  for (i = 0; i < tablinks.length; i++) {
    tablinks[i].className = tablinks[i].className.replace(" active", "");
  }
  
  document.getElementById(tabName).style.display = "block";
  event.currentTarget.className += " active";
  
  // 在这里可以执行相应的方法
  if (tabName === "tab1") {
    // 执行tab1的方法
  } else if (tabName === "tab2") {
    // 执行tab2的方法
  } else if (tabName === "tab3") {
    // 执行tab3的方法
  }
}