<script src="JS/jquery-1.7.1.js"></script>
<script type="text/javascript">
$(function () {
$('[value=全选]').click(function () {
$(':checkbox').attr("checked", "checked");
});
$('[value=全不选]').click(function () {
$(':checkbox').removeAttr("checked");
});
$('[value=反选]').click(function () {
////1.
//$(':checkbox').each(function () {
// $(this).attr("checked", !$(this).attr("checked"));
//});
//2.
// $(':checkbox').each(function () {
$(':checkbox').attr("checked", function () {
if ($(this).attr("checked"))
return false;
return true;
});
// });
});
});
</script>
</head>
<body>
<input type="button" value="全选" />
<input type="button" value="反选" />
<input type="button" value="全不选" /><br />
<input type="checkbox" id="1" /><label for="1">1</label>
<input type="checkbox" id="2" /><label for="2">2</label>
<input type="checkbox" id="3" /><label for="3">3</label>
<input type="checkbox" id="4" /><label for="4">4</label>
<input type="checkbox" id="5" /><label for="5">5</label>
<input type="checkbox" id="6" /><label for="6">6</label>
<input type="checkbox" id="7" /><label for="7">7</label>
<input type="checkbox" id="8" /><label for="8">8</label>
<input type="checkbox" id="9" /><label for="9">9</label>
</body