which

English [w?t?] US [hw?t?,w?t?]

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adj.

?? ????? jquery ???

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ParametersDescription
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?? ????? jquery ?

<html>
<head>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("input").keydown(function(event){ 
    $("div").html("Key: " + event.which);
  });
});
</script>
</head>
<body>

請隨意鍵入一些字符：<input type="text" />
<p>當(dāng)您在上面的框中鍵入文本時，下面的 div 會顯示鍵位序號。</p>
<div />

</body>
</html>
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