html checkbox 实现全选/取消全选

html checkbox  实现全选/取消全选




<html>
<body>

	<table border="1">
		<tr>
			<th><input type="checkbox" onclick="swapCheck()" /></th>
			<th>Month</th>
			<th>Savings</th>
		</tr>
		<tr>
			<td><input type="checkbox" /></td>
			<td>January</td>
			<td>$100</td>
		</tr>
		<tr>
			<td><input type="checkbox" /></td>
			<td>February</td>
			<td>$150</td>
		</tr>
	</table>

	<script type="text/javascript"
		src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>

	<script type="text/javascript">
		//checkbox 全选/取消全选
		var isCheckAll = false;
		function swapCheck() {
			if (isCheckAll) {
				$("input[type='checkbox']").each(function() {
					this.checked = false;
				});
				isCheckAll = false;
			} else {
				$("input[type='checkbox']").each(function() {
					this.checked = true;
				});
				isCheckAll = true;
			}
		}
	</script>

</body>
</html>



效果图：



posted on 2018-01-19 11:44  yjbjingcha  阅读(281)  评论(0)  编辑  收藏  举报

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