using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Json;
using?System.IO;
using?System.Net;
namespace?GoogleTakeoutImageDownloader
{
????public?interface?IDownloadProgressNotifier
????{
????????void?OnCurrentFileProgress（String?sCurrentFileName?int?processedFilesCount?int?totalFileCount）;
????????void?onerror（String?sFileName?String?sErrorInformation）;

????????void?PreDownload（int?TotalFilesCount）;
????????void?OnDownloadFinish（）;
????}
????public?class?DownloadManager
????{
????????bool?stoponerror?=?false;
????????String?inputRootFolder;
????????String?outputRootFolder;
????????bool?overwriteOutputFolder?=?false;
????????IDownloadProgressNotifier?Notifier;
????????const?String?JSON_JPEG_FILE_FILTER?=?@“*.jpg.json“;

????????int?TotalFilesCount?=?0;
????????int?ProcessedFilesCount?=?0;

????????public?DownloadManager（String?RootFolder?String?outRootFolder?bool?bOverwrite?bool?bStoponerror?IDownloadProgressNotifier?notificationHandler）
????????{
????????????stoponerror?=?bStoponerror;
????????????inputRootFolder?=?RootFolder;
????????????outputRootFolder?=?outRootFolder;
????????????overwriteOutputFolder?=?bOverwrite;
????????????Notifier?=?notificationHandler;


????????????//
????????????//?Count?all?files?needs?to?be?processes.
????????????//
????????????TotalFilesCount?=?Directory.EnumerateFiles（inputRootFolder?JSON_JPEG_FILE_FILTER?SearchOption.AllDirectories）.Count（）;

????????}

????????public?void?StartDownload（）
????????{

????????????if?（Notifier?!=?null）
????????????????Notifier.PreDownload（TotalFilesCount）;

????????????//
????????????//Create?Folder?structure?in?the?output?directory.
????????????//

????????????CreateDirectory（new?DirectoryInfo（Path.GetDirectoryName（inputRootFolder）））;

????????????TraverseFolderTree（inputRootFolder）;

????????????if?（Notifier?!=?null）
????????????????Notifier.OnDownloadFinish（）;
????????}

????????public?static?void?CreateDirectory（DirectoryInfo?directory）
????????{
????????????if?（!directory.Parent.Exists）
????????????????CreateDirectory（directory.Parent）;
????????????directory.Create（）;
????????}
????????private?void?TraverseFolderTree（String?sSeedFolder）
????????{
????????????String?sCurrentOutputFolder?=?sSeedFolder.Replace（inputRootFolder?outputRootFolder）?;
????????????//
????????????//Create?folder?in?output?folder?hierarchy.?It?will?be?skipped?for?first?call.
????????????//
????????????if?（sSeedFolder?==?string.Empty）
????????????????Directory.CreateDirectory（sCurrentOutputFolder）;

????????????//
????????????//?Traverse?through?all?directories?recursively.
????????????//
????????????foreach?（String?strDirectory?in?Directory.EnumerateDirectories（sSeedFolder））
????????????{
????????????????TraverseFolderTree（strDirectory）;
????????????}

????????????//Create?Output?directory?if?not?alreaday?existed.
????????????if?（!Di

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\GoogleTakeoutImageDownloader\
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\GoogleTakeoutImageDownloader\v15\
?????文件??????221696??2017-12-28?03:41??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\GoogleTakeoutImageDownloader\v15\.suo
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\GoogleTakeoutImageDownloader\v15\Server\
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\GoogleTakeoutImageDownloader\v15\Server\sqlite3\
?????文件???????????0??2017-12-09?20:10??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\GoogleTakeoutImageDownloader\v15\Server\sqlite3\db.lock
?????文件??????790528??2017-12-28?03:41??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\.vs\GoogleTakeoutImageDownloader\v15\Server\sqlite3\storage.ide
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\
?????文件????????1183??2017-12-09?20:10??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader.sln
?????文件?????????189??2017-12-09?20:10??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\App.config
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\bin\
?????目錄???????????0??2017-12-28?03:40??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\bin\Debug\
?????目錄???????????0??2017-12-28?03:40??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\bin\Release\
?????文件????????4810??2017-12-28?01:40??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\DownloadManager.cs
?????文件????????3421??2017-12-28?02:39??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\Form1.cs
?????文件????????7447??2017-12-28?02:24??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\Form1.Designer.cs
?????文件????????5817??2017-12-28?02:24??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\Form1.resx
?????文件????????3992??2017-12-10?15:27??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader.csproj
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\
?????文件????????1464??2017-12-23?13:16??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件???????24620??2017-12-28?03:40??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件???????????0??2017-12-28?02:39??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\GoogleTakeoutImageDownloader.csproj.CopyComplete
?????文件???????????0??2017-12-09?20:10??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
?????文件???????????0??2017-12-09?20:10??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
?????文件???????????0??2017-12-09?20:10??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
?????目錄???????????0??2017-12-09?20:10??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Debug\TempPE\
?????目錄???????????0??2017-12-28?03:43??GoogleTakeOutImageDownloader_source\GoogleTakeoutImageDownloader\GoogleTakeoutImageDownloader\obj\Release\
............此處省略51個(gè)文件信息