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<html>
<head>
<script type="text/javascript">
function show()
{
var tab = document.getElementById("test") ;
//表格行數
var rows = tab.rows.length ;
//表格列數
var cells = tab.rows.item(0).cells.length ;
alert("行數"+rows+"列數"+cells);
}
</script>
</head>
<body>
<table id="test" border="1">
<tr>
<td> </td><td>nbsp;</td>
</tr>
<tr>
<td> </td><td>nbsp;</td>
</tr>
</table>
<input type="button" onclick="show();"/>
</body>
</html>
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