请问以下代码为什么不对,点按钮好象没触发时间<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Untitled Document</title>
</head>
<body>
<button id="A">A</button>
</body>
</html>
<script for="A" event="click" language="javascript">
alert('aaaaaaaa');
</script>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Untitled Document</title>
</head>
<body>
<button id="A">A</button>
</body>
</html>
<script for="A" event="click" language="javascript">
alert('aaaaaaaa');
</script>
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