<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script src="Js/jquery-1.9.1.js"></script>
<script type="text/javascript">
var Datas = JSON.parse("{\"data\":{}}");
function checkMe(obj) {
var key = $(obj).attr("value");
var keyInfo = $(obj).attr("info");
for (var i in Datas) {
if (i == key)
delete Datas[i];
else
$(Datas).attr(key, keyInfo);
}
}
function showInfo() {
for (var i in Datas)
alert(i);
}
function setCheck() {
var argss = ["李四", "王五", "李三"];
$.each(argss, function (i, n) {
var o = "input:checkbox[value=" + n + "]";
$(o).attr("checked", true);
});
}
</script>
</head>
<body>
<input type="button" value="验证" onclick="showInfo()" />
<input type="button" value="设置" onclick="setCheck()" />
<div>
<ul>
<li>
<input type="checkbox" value="李四" id="checkbox2" onclick="checkMe(this)" info=‘{"年龄":"22"}‘ /><label for="checkbox2">李四</label></li>
<li>
<input type="checkbox" value="王五" id="checkbox3" onclick="checkMe(this)" info=‘{"年龄":"33"}‘ /><label for="checkbox3">王五</label></li>
<li>
<input type="checkbox" value="赵六" id="checkbox4" onclick="checkMe(this)" info=‘{"年龄":"44"}‘ /><label for="checkbox4">赵六</label></li>
<li>
<input type="checkbox" value="李三" id="checkbox5" onclick="checkMe(this)" info=‘{"年龄":"22"}‘ /><label for="checkbox5">李三</label></li>
</ul>
</div>
</body>
</html>
原文：http://www.cnblogs.com/-Apple/p/4133988.html