Javascript操作Cookie[3]

客户端操作Cookie主要使用document.cookie

1. 添加Cookie

       <script type="text/javascript">
           //添加cookie
           var value ="name=www";
           var date = new Date();
           date.setDate(date.getDay()+5);
           document.cookie=value+"; expires="+date.toUTCString();
       </script>

2. 读取Cookie

       <script type="text/javascript">
           alert(document.cookie);
       </script>

3. 修改Cookie

       <script type="text/javascript">
           //修改cookie,代码与添加cookie一致
           var value ="name=wwwLLLLooo";
           var date = new Date();
           date.setDate(date.getDay()+5);
           document.cookie=value+"; expires="+date.toUTCString();
       </script>

4. 删除Cookie

       <script type="text/javascript">
           //删除Cookie.设置过期时间为昨天即可.
           var cookieName ="password";
           var date = new Date();
           date.setDate(date.getDay()-1);
           document.cookie=cookieName+"=deleted; expires="+date.toUTCString();
       </script>