​x
 
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  testObj=new Object();
  testObj.greetingMorn="Good Morning!";
  testObj.greetingEve="Good Evening!";
  $("#btn1").click(function(){
    $("div").data(testObj);
  });
  $("#btn2").click(function(){
    alert($("div").data("greetingEve"));
  });
});
</script>
</head>
<body>
<button id="btn1">把数据添加到 div 元素</button><br />
<button id="btn2">获取已添加到 div 元素的数据</button>
<div></div>
</body>
</html>
​