//释放单个Ab资源
private void UnLoadAssetBundle(string assetBundleName)
{
MAssetBundleItem mAssetBundleItem = null;
uint crc = MCrcHelper.GetCRC32(assetBundleName);
if (m_assetBundleItemDic.TryGetValue(crc, out mAssetBundleItem))
{
mAssetBundleItem.refCount--;
if (mAssetBundleItem.refCount <= 0 && mAssetBundleItem.assetBundle != null)
{
mAssetBundleItem.assetBundle.Unload(true);
mAssetBundleItem.Reset();
m_assetBundleItemPool.Recycle(mAssetBundleItem);
m_assetBundleItemDic.Remove(crc);
}
}
}
