按键显示按键编码 keycode

时间：2021-02-18 07:39:58
<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title></title>

<script src="http://code.jquery.com/jquery-1.7.2.min.js"></script>

<script type="text/javascript">

$(document).keydown(function(e){

    if(e.which=="13"){

        $("#show").html($("#show").html()+"<br>\n");

    }else{

        $("#show").html(  $("#show").html() + "," + e.which);

    }

})

</script>

</head>

<body>

<div id="show" style="background:#ffaaaa;"></div>

</body>

</html>

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