private void DoInstantiateComplete()
{
if (onComplete != null)
{
Bundle assetInstance = isSub ? (Bundle)AssetBundleLoadManager.instance.mAssetCached[assetName]
: AssetBundleLoadManager.InstantiateBundle((Bundle)AssetBundleLoadManager.instance.mAssetCached[assetName]); // 如果是子资源返回bundle资源本身，否则返回其实例对象
onComplete(assetName, assetInstance);
}
}
