<div id="text1">文本1</div>
<div id="text2">文本2</div>
<div id="text3">文本3</div>
<button onclick="toggleText()">切换文本</button>

function toggleText() {
  var text1 = document.getElementById("text1");
  var text2 = document.getElementById("text2");
  var text3 = document.getElementById("text3");

  if (text1.innerHTML === "文本1") {
    text1.innerHTML = "新文本1";
    text2.innerHTML = "新文本2";
    text3.innerHTML = "新文本3";
  } else {
    text1.innerHTML = "文本1";
    text2.innerHTML = "文本2";
    text3.innerHTML = "文本3";
  }
}