Javascript中的Cookie操作

<!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 type="text/javascript">

        //添加cookie

        function setCookie(key, value, delay) {

            var oDate = new Date();

            oDate.setDate(oDate.getDate() + delay);//设置过期时间

            document.cookie = key + "=" + value + ";expires=" + oDate;

        }

        setCookie("name", "hahah", 13);

        setCookie("pwd", "sdfsf", 234);

        //删除cookie

        function removeCookie(key){

            setCookie(key,1,-1);

        }

    </script>

</head>

<body>

</body>

</html>

　　//本域内设置cookie

<script type="text/javascript">

function setCookie(c_name,value,expiredays) {

var exdate=new Date();

exdate.setDate(exdate.getDate()+expiredays);

document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString())+";path=/;domain=b.com";

}

window.onload=function(){

setCookie("listallwjh","sfwjh");

alert("Cookie设置成功！");

}

</script>

　　跨域设置cookie

<script>

function getCookie(c_name) {

if (document.cookie.length>0)

{

c_start=document.cookie.indexOf(c_name + "=");

if (c_start!=-1)

{

c_start=c_start + c_name.length+1 ;

c_end=document.cookie.indexOf(";",c_start);

if (c_end==-1) c_end=document.cookie.length;

return unescape(document.cookie.substring(c_start,c_end));

}

}

return "";

}

window.onload=function(){

var c_name="listallwjh";

if(getCookie("listallwjh")!=null){

alert(getCookie("listallwjh"));

}

}

</script>

　　//读取Cookie

 //读取cookie

        function getCookie(key) {

            var arr = document.cookie.split(";");

            for (var i = 0; i < arr.length; i++) {

                var arr2 = arr[i].split("=");

                if (arr2[0]==key) {

                    return arr2[1];

                }

            }

        }

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Javascript中的Cookie操作

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