/// <summary>
 /// 释放一个场景中所有的资源
 /// </summary>
 /// <param name="scenesName"></param>
 /// <returns></returns>
 public void DisposeAllAssets(string scenesName)
 {
     if (_DicAllScenes.ContainsKey(scenesName))
     {
         MultiABMgr multiObj = _DicAllScenes[scenesName];
         multiObj.DisposeAllAsset();
     }
     else
     {
         Debug.LogError(GetType() + "/DisposeAllAsset()/找不到场景: " + scenesName + " ,无法释放资源,请检查!");
     }
 }