废话不多说，直接代码：
复制代码 代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script src="js/jquery-1.8.3.min.js" type="text/javascript" language="javascript"></script>
<title>无标题文档</title>
<script type="text/javascript">
$(function(){
$(":checkbox").click(function(){
if($(this).attr("checked")!=undefined)
{
$(this).siblings().attr("checked",false);
$(this).attr("checked",true);
}
});
});
</script>
<style>
span,input{float:left;}
input{ width:14px; height:14px;}
span{ margin-right:20px;}
</style>
</head>
<body>
<div>
<input type="checkbox" /><span>1</span>
<input type="checkbox" /><span>2</span>
<input type="checkbox" /><span>3</span>
<input type="checkbox" /><span>4</span>
<input type="checkbox" /><span>5</span>
<input type="checkbox" /><span>6</span>
<input type="text" /><span>7</span>
</div>
</body>
</html>
