cookies 

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
    </head>
    <body>
        <script>
            //写cookies
            function setCookie(k,v){
                var Days = 30;
                var exp = new Date();
                exp.setTime(exp.getTime() + Days*24*60*60*1000);
                document.cookie = k + "="+ escape (v) + ";expires=" + exp.toGMTString();
            }
            
            //读cookies
            function getCookie(k){
                var temp=null;
                var arr,reg=new RegExp("(^| )"+k+"=([^;]*)(;|$)");
                if(arr=document.cookie.match(reg)){
                    temp= unescape(arr[2]);
                }
                return temp;
            }
        
            //删cookies
            function removeCookie(k){
                var exp = new Date();
                exp.setTime(exp.getTime() - 1);
                var cval=getCookie(k);
                if(cval!=null){
                    document.cookie= k + "="+cval+";expires="+exp.toGMTString();
                }
            }
            
            setCookie('uname','丁少');
            console.log(getCookie('uname'))
            
            removeCookie('uname')
            console.log(getCookie('uname'))        
        </script>
    </body>
</html>

 

 

posted @ 2017-10-17 15:36  丁少华  阅读(149)  评论(0)  编辑  收藏  举报