比赛；编辑页面

Assets/Scripts/Utils/Utils.cs

@@ -253,7 +253,7 @@ namespace Assets.Scripts
             yield return request.SendWebRequest();
             if (request.isNetworkError || request.isHttpError)
                 Debug.Log(request.error);
-            else 
+            else if(img!=null)
             {
                 img.texture = ((DownloadHandlerTexture)request.downloadHandler).texture;
                 if (action != null)