下载JQ操作类 Jquery.Coockie.js
导入js
<script type="text/javascript" src="Js/jquery.js"></script>
<script type="text/javascript" src="Js/Jquery.Coockie.js"></script>
//设置Cookie
var date = new Date();
date.setTime(date.getTime() + (14 * 24 * 60 * 60 * 1000));
$.cookie("Member", $("#txt_LoginUserName").val(), { path: '/', expires: date });
//清空Cookie
$.cookie("Member", null, { path: '/' });