public function CronInterface()
 {
     $db = M('SignList');
     $queue = new \SaeTaskQueue('NewSign');
     // 统计剩余未签到
     $leftCount = $db->where('issign!=1')->count();
     $queueLeftLength = $queue->leftLength();
     $workArr = array();
     if ($leftCount == 0) {
         echo 'Left UnSign Tieba is empty';
         return;
     }
     // 剩余未签到是否大于队列长度
     if ($leftCount > $queueLeftLength) {
         $workArr = $db->where('issign!=1')->limit($queueLeftLength)->select();
     } else {
         $workArr = $db->where('issign!=1')->select();
     }
     // 分发至队列
     foreach ($workArr as $value) {
         $queue->addTask("/index.php/Home/Queue/TbSign", "cookieid=" . $value['cookieid'] . '&tiebaname=' . $value['tiebaname'] . '&fid=' . $value['fid'] . '&urlname=' . $value['urlname'] . '&signlistid=' . $value['id']);
     }
     $queue->push();
 }