// 本地异步请求非Assetbundle资源,非AB(不计引用计数、不缓存),Creater使用后记得回收
 public ResourceWebRequester RequestAssetFileAsync(string filePath, bool streamingAssetsOnly = true)
 {
     var creater = ResourceWebRequester.Get();
     string url = null;
     if (streamingAssetsOnly)
     {
         url = AssetBundleUtility.GetStreamingAssetsFilePath(filePath);
     }
     else
     {
         url = AssetBundleUtility.GetAssetBundleFileUrl(filePath);
     }
     creater.Init(filePath, url, true);
     webRequesting.Add(filePath, creater);
     webRequesterQueue.Enqueue(creater);
     return creater;
 }