final protected function checkAppRegister(string $appname):bool
    {
        $file = json_decode(file_get_contents(FEnvFcm::get("framework.config.core.apps.file")));
        if (empty($file)) {
            return (false);
        }
        foreach ($file as $val) {
            if ($val->name == $appname) {
                return (true);
            }
        }
        return (false);
    }