创建一个窗口, 设置宽度与高度为 500px - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <script>
    var w;

    function openwindow() {
      w = window.open('', '', 'width=100,height=100');
      w.focus();
    }

    function myFunction() {
      w.resizeTo(500, 500);
      w.focus();
    }
  </script>
</head>
<body>

  <button onclick="openwindow()">创建窗口</button>
  <button onclick="myFunction()">调整窗口</button>

</body>
</html>
        