您可以在文档中添加不同类型的事件。 - 在线编辑器

          <p>使用 the addEventListener() 方法向文档添加许多事件。</p>
<p id="demo"></p>
<script>
  document.addEventListener("mouseover", myFunction);
  document.addEventListener("click", mySecondFunction);
  document.addEventListener("mouseout", myThirdFunction);

  function myFunction() {
    document.getElementById("demo").innerHTML += "Moused over!<br>"
  }

  function mySecondFunction() {
    document.getElementById("demo").innerHTML += "Clicked!<br>"
  }

  function myThirdFunction() {
    document.getElementById("demo").innerHTML += "Moused out!<br>"
  }
</script>
        