<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>moveBy的用法</title>
</head>
<body>
  <!-- 先新开一个窗口，然后点击移动窗口按钮，窗口就可以移动了 -->
  <script type="text/javascript">
    function moveWin(){
      myWin.moveBy(300,200);
      myWin.focus();
    }
    var myWin = window.open('','','width=300,height=80');
    myWin.document.write("余生很长，请多指教。");
  </script>
  <button οnclick="moveWin()">移动窗口</button>
  
</body>
</html>