请试一下下面这个例子 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <script src="https://apps.bdimg.com/libs/prototype/1.7.1.0/prototype.js"></script>
  <script>
    function myFunction() {
      $("h01").insert("Hello Prototype!");
    }
    Event.observe(window, "load", myFunction);
  </script>
</head>
<body>

  <h1 id="h01"></h1>
</body>

</html>
        