public static AssetBundleLoadAssetOperation LoadAssetAsync(string assetBundleName, string assetName, System.Type type)
    {
        LoadAssetBundle(assetBundleName);
        AssetBundleLoadAssetOperation operation = new AssetBundleLoadCommonAsset(assetBundleName, assetName, type);

        s_DownloadingOps.Add(operation);
        return(operation);
    }
 public static AssetBundleLoadAssetOperation LoadAssetAsync(string assetBundleName, string assetName, System.Type type)
 {
     LoadAssetBundle(assetBundleName);
     AssetBundleLoadAssetOperation operation = new AssetBundleLoadCommonAsset(assetBundleName, assetName, type);
     s_DownloadingOps.Add(operation);
     return operation;
 }