private bool VerificationFile(UpdateFileInfo updateFileInfo, string filePath)
        {
//            return true;
            var length = 0;

            using (FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.ReadWrite))
            {
                length = (int)fileStream.Length;
                if (length != updateFileInfo.ZipLength)
                {
                    FileUtility.DeleteFile(filePath);
                    return(false);
                }
                if (updateFileCache == null || updateFileCache.Length < length)
                {
                    updateFileCache = new byte[(length / OneMegaBytes + 1) * OneMegaBytes];
                }
                int offset = 0;
                int count  = length;
                while (count > 0)
                {
                    int bytesRead = fileStream.Read(updateFileCache, offset, count);
                    offset += bytesRead;
                    count  -= bytesRead;
                }
            }

            if (serverBundleIsZip)
            {
                byte[] zipMd5Bytes = MD5Utility.GetMd5Bytes(updateFileCache, 0, length);
                int    zipMd5Code  = BitConverter.ToInt32(zipMd5Bytes, 0);
                if (zipMd5Code != updateFileInfo.ZipMd5Code)
                {
                    FileUtility.DeleteFile(filePath);
                    return(false);
                }
                int decompressSize = ZipUtility.DeCompressionFileInSamePath(filePath, serverBundleZipPassword);
                if (decompressSize != updateFileInfo.Length)
                {
                    FileUtility.DeleteFile(filePath);
                    return(false);
                }
            }
            else
            {
                byte[] md5Bytes = MD5Utility.GetMd5Bytes(updateFileCache, 0, length);
                int    md5Code  = BitConverter.ToInt32(md5Bytes, 0);
                if (md5Code != updateFileInfo.Md5Code)
                {
                    FileUtility.DeleteFile(filePath);
                    return(false);
                }
            }
            string srcPath = PathUtility.GetCombinePath(AppConst.Path.HotUpdateDownloadDataPath,
                                                        updateFileInfo.AssetBundleName);
            string desPath = PathUtility.GetCombinePath(AppConst.Path.PresistentDataPath,
                                                        updateFileInfo.AssetBundleName);

            if (FileUtility.IsFileExist(desPath))
            {
                FileUtility.DeleteFile(desPath);
            }
            FileUtility.Move(srcPath, desPath);
            if (FileUtility.IsFileExist(filePath))
            {
                FileUtility.DeleteFile(filePath);
            }
            return(true);
        }