static void Read()
        {
            AtlasPackerHelper.Init();
            if (AtlasPackerHelper.list == null)
            {
                AtlasPackerHelper.list = new AtlasTextureFormatList();
            }
            var dirs = Directory.GetDirectories(PathConfig.localFullPath2);

            for (int i = 0; i < dirs.Length; ++i)
            {
                dirs[i] = dirs[i].Replace('\\', '/');
                dirs[i] = dirs[i].Substring(dirs[i].LastIndexOf('/') + 1);
            }
            if (AtlasPackerHelper.list.list != null)
            {
                foreach (var item in AtlasPackerHelper.list.list)
                {
                    if (dirs.First(t => t == item.atlasName) == null)
                    {
                        AtlasPackerHelper.list.dict.Remove(item.atlasName);
                    }
                }
            }

            Save();
            foreach (var dir in dirs)
            {
                if (AtlasPackerHelper.list.dict.ContainsKey(dir))
                {
                    continue;
                }
                var item = new AtlasTextureFormatItem();
                item.atlasName = dir;
                item.iosFormat = item.androidFormat = item.standaloneFormat = TextureImporterFormat.RGBA32.ToString();
                AtlasPackerHelper.list.dict.Add(dir, item);
            }
        }
 static void Save()
 {
     AtlasPackerHelper.list.list = AtlasPackerHelper.list.dict.Values.ToListFromPool();
     File.WriteAllText(AtlasPackerHelper.ATLAS_TEXTURE_FORMAT_CONFIG_PATH, JsonUtility.ToJson(AtlasPackerHelper.list));
     AtlasPackerHelper.Init();
 }