public static void CloseManager()
 {
     if(_UGBPool != null)
     {
         _UGBPool.Dispose();
         _UGBPool = null;
         System.GC.Collect();
     }
 }
    public static UGBundlePoolManager instance()
    {
        if(_UGBPool == null)
        {
            _UGBPool = new UGBundlePoolManager();
            _UGBPool.UGInit();
        }

        return _UGBPool;
    }