var CommonCookie = {
    set: function (name, value, days) {
        if (!name || !value) return;
        if (!isNotEmpty(days)) {
            days = 30;
        }
        var exp = new Date();
        exp.setTime(exp.getTime() + days * 24 * 60 * 60 * 1000);
        document.cookie = name + "=" + encodeURIComponent(value) + ";expires=" + exp.toUTCString();
    },
    get: function (name) {
        var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
        if (arr != null) return decodeURIComponent(arr[2]);
        return null;
    },
    delete: function (name) {
        var d = new Date();
        d.setTime(d.getTime() + (-1 * 24 * 60 * 60 * 1000));
        var expires = "expires=" + d.toUTCString();
        document.cookie = name + "=; " + expires;
    },
    //cookie中的key值
    key: {
        "language": "language"
    }
}