查看cookie

<!DOCTYPE html>
<html>

    <head>
        <meta charset="utf-8">
        <title></title>
    </head>

    <body>
        <script>
            alert(document.cookie);
        </script>
    </body>

</html>

清除当前网页(域名)所有cookie

<!DOCTYPE html>
<html>

    <head>
        <meta charset="utf-8">
        <title></title>
    </head>

    <body>

        <script>
            function clearCookie() {
                var rs = document.cookie.match(new RegExp("([^ ;][^;]*)(?=(=[^;]*)(;|$))", "gi"));
                // 删除所有cookie  
                for (var i in rs) {
                    clearCookie(rs[i]);
                }

                function clearCookie(name, domain, path) {
                    var domain = domain || document.domain;
                    var path = path || "/";
                    document.cookie = name + "=; expires=Mon, 26 Jul 1997 05:00:00 GMT;domain=" + domain + "; path=" + path;
                }
            }
            clearCookie();
            alert("清除成功");
        </script>
    </body>

</html>

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