清空AssetBundleName缓存

 public static void ClearAssetBundleName()
 {
     string[] allAssetBunleName = AssetDatabase.GetAllAssetBundleNames();
     foreach(var name in allAssetBunleName)
     {
         AssetDatabase.RemoveAssetBundleName(name,true);
     }
     AssetDatabase.RemoveUnusedAssetBundleNames();
     AssetDatabase.Refresh();
 }