Unity编辑器扩展批量修改图片名称

下边附上我的代码

    [MenuItem("小黄高级工具/将各种图片更改名字")]
    static void PutNewPictureName()
    {
    
        ReturnStreamingAssetPngOrPictureName();
        AssetDatabase.Refresh();
        AssetDatabase.SaveAssets();
    }

    static List<string> ReturnStreamingAssetPngOrPictureName()
    {
    
        string addContent = "es.";

        List<string> CurrentName = new List<string>();
        List<string> OldName = new List<string>();

        string myfolderName = "StreamingAssets";

        string path = Path.Combine(Application.dataPath, myfolderName);

        var images = Directory.GetFiles(path, ".", SearchOption.AllDirectories).Where(s => s.EndsWith(".png") || s.EndsWith(".jpg"));

        foreach (var i in images)
        {
    
            OldName.Add(i);
            var str = i.Replace(".", addContent);
            CurrentName.Add(str);
            
            Debug.Log($"itss:{
      str}");
        }

        for(int i=0;i<CurrentName.Count;i++)
        {
    
            File.Move(OldName[i], CurrentName[i]);
        }

        return CurrentName;
    }