public static bool CompressABToStreamingAssetDir()
        {
            Debug.Log("正在压缩bundle到StreamingAssets目录中...");
            string from = PackagePath.GetOutAssetBundleDir();

            if (!Directory.Exists(from))
            {
                Debug.LogError("can not find ab dir:path =" + from);
                return(false);
            }

            string toDir = PackagePath.GetStreamingAssetABDir();

            if (!Directory.Exists(toDir))
            {
                Directory.CreateDirectory(toDir);
            }
            string to = PackagePath.GetStreamingAssetABZipFilePath();

            try
            {
                //压缩时,会将/../这些东西打到压缩文件,导致解压时会有问题(拿文件相对目录时)
                from = new DirectoryInfo(from).FullName;
                //LaunchCompress.CompressDirExcept(from, to, ".manifest");
            }
            catch (Exception e)
            {
                Debug.LogError("compress bundle fail!msg:" + e.Message + ",StackTrace:" + e.StackTrace);
                return(false);
            }
            AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
            return(true);
        }
        public static bool CopyABToStreamingAssetDir()
        {
            string from = PackagePath.GetOutAssetBundleDir();

            if (!Directory.Exists(from))
            {
                Debug.LogError("can not find ab dir:path =" + from);
                return(false);
            }
            string to = PackagePath.GetStreamingAssetABDir();

            EditorFileOperate.CopyTo(from, to, ".manifest");
            AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
            return(true);
        }