文件移动问题

CheckDownload.csproj

@@ -194,13 +194,13 @@
       <ErrorText>这台计算机上缺少此项目引用的 NuGet 程序包。使用"NuGet 程序包还原"可下载这些程序包。有关更多信息，请参见 http://go.microsoft.com/fwlink/?LinkID=322105。缺少的文件是 {0}。</ErrorText>
     </PropertyGroup>
     <Error Condition="!Exists('packages\Fody.6.9.2\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Fody.6.9.2\build\Fody.targets'))" />
-    <!-- <Error Condition="!Exists('packages\SevenZipSharp.Interop.19.1.0\build\SevenZipSharp.Interop.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\SevenZipSharp.Interop.19.1.0\build\SevenZipSharp.Interop.targets'))" /> -->
-    <!-- <Error Condition="!Exists('packages\SevenZipExtractor.1.0.19\build\SevenZipExtractor.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\SevenZipExtractor.1.0.19\build\SevenZipExtractor.targets'))" /> -->
     <Error Condition="!Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Costura.Fody.6.0.0\build\Costura.Fody.props'))" />
     <Error Condition="!Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Costura.Fody.6.0.0\build\Costura.Fody.targets'))" />
+    <!-- <Error Condition="!Exists('packages\SevenZipSharp.Interop.19.1.0\build\SevenZipSharp.Interop.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\SevenZipSharp.Interop.19.1.0\build\SevenZipSharp.Interop.targets'))" /> -->
+    <!-- <Error Condition="!Exists('packages\SevenZipExtractor.1.0.19\build\SevenZipExtractor.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\SevenZipExtractor.1.0.19\build\SevenZipExtractor.targets'))" /> -->
   </Target>
   <Import Project="packages\Fody.6.9.2\build\Fody.targets" Condition="Exists('packages\Fody.6.9.2\build\Fody.targets')" />
+  <Import Project="packages\Costura.Fody.6.0.0\build\Costura.Fody.targets" Condition="Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.targets')" />
   <!-- <Import Project="packages\SevenZipSharp.Interop.19.1.0\build\SevenZipSharp.Interop.targets" Condition="Exists('packages\SevenZipSharp.Interop.19.1.0\build\SevenZipSharp.Interop.targets')" /> -->
   <!-- <Import Project="packages\SevenZipExtractor.1.0.19\build\SevenZipExtractor.targets" Condition="Exists('packages\SevenZipExtractor.1.0.19\build\SevenZipExtractor.targets')" /> -->
-  <Import Project="packages\Costura.Fody.6.0.0\build\Costura.Fody.targets" Condition="Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.targets')" />
 </Project>

Form1.cs

@@ -620,6 +620,7 @@ namespace CheckDownload
             {
                 if (!File.Exists(tempFilePath))
                 {
+                    //UpdateStatus($"[调试] 临时文件不存在: {fileName}");
                     return false;
                 }
 
@@ -641,6 +642,7 @@ namespace CheckDownload
                     {
                         var fileInfo = new FileInfo(tempFilePath);
                         Interlocked.Add(ref _totalDownloadedBytes, fileInfo.Length);
+                        //UpdateStatus($"[调试] 临时文件验证通过，大小: {fileInfo.Length} bytes - {fileName}");
                     }
                     catch
                     {
@@ -650,10 +652,6 @@ namespace CheckDownload
                 }
                 else
                 {
-                    if (!string.IsNullOrWhiteSpace(fileName))
-                    {
-                        UpdateStatus($"临时文件不完整，重新下载: {fileName}");
-                    }
                     File.Delete(tempFilePath);
                     return false;
                 }
@@ -662,7 +660,7 @@ namespace CheckDownload
             {
                 if (!string.IsNullOrWhiteSpace(fileName))
                 {
-                    UpdateStatus($"检查临时文件时出错，将重新下载: {fileName} - {ex.Message}");
+                    UpdateStatus($"临时文件异常，删除文件: {fileName} - {ex.Message}");
                 }
                 try
                 {
@@ -917,6 +915,10 @@ namespace CheckDownload
             UpdateStatus("正在校验文件...");
             UpdateCount("");
             UpdateSize("");
+            
+            // 新增：在开始校验前创建临时文件备份
+            await CreateTempFileBackup();
+            
             var failedFiles = new ConcurrentBag<string>();
             var filesForScripting = new ConcurrentBag<(string original, string newFile)>();
 
@@ -933,9 +935,18 @@ namespace CheckDownload
                     string expectedMd5 = item.Value;
                     string tempFilePath = Path.Combine(_tempDirectory, relativePath);
 
+                    // 添加调试信息：检查临时文件是否存在
+                    if (!File.Exists(tempFilePath))
+                    {
+                        //UpdateStatus($"[调试] 临时文件在校验前消失: {relativePath}");
+                        failedFiles.Add(relativePath);
+                        return;
+                    }
+
                     string actualMd5 = CalculateMD5FromFile(tempFilePath);
                     if (actualMd5 != expectedMd5.ToLower())
                     {
+                        //UpdateStatus($"[调试] 文件MD5校验失败: {relativePath}");
                         failedFiles.Add(relativePath);
                         return;
                     }
@@ -947,12 +958,24 @@ namespace CheckDownload
                         Directory.CreateDirectory(localDir);
                     }
 
+                    //UpdateStatus($"[调试] 开始复制文件: {relativePath}");
                     if (!await TryCopyFileAsync(tempFilePath, localPath)) // 改为使用复制方法
                     {
+                        //UpdateStatus($"[调试] 直接复制失败，创建.new文件: {relativePath}");
                         string backupPath = localPath + ".new";
                         File.Copy(tempFilePath, backupPath, true); // 复制而非移动
                         filesForScripting.Add((localPath, backupPath));
                     }
+                    else
+                    {
+                       //UpdateStatus($"[调试] 文件复制成功: {relativePath}");
+                    }
+
+                    // 复制后再次检查临时文件是否还存在
+                    if (!File.Exists(tempFilePath))
+                    {
+                        //UpdateStatus($"[调试] 警告：文件复制后临时文件消失: {relativePath}");
+                    }
                 }
                 finally
                 {
@@ -1874,5 +1897,63 @@ namespace CheckDownload
                 }
             }
         }
+
+        /// <summary>
+        /// 创建临时文件的备份，防止在程序退出后被删除
+        /// </summary>
+        private async Task CreateTempFileBackup()
+        {
+            try
+            {
+                string tempPath = Path.Combine(
+                    Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+                    "Temp",
+                    _appName
+                );
+
+                if (Directory.Exists(tempPath))
+                {
+                    string backupDir = Path.Combine(_baseDirectory, "TempBackup");
+                    if (!Directory.Exists(backupDir))
+                    {
+                        Directory.CreateDirectory(backupDir);
+                    }
+
+                    string timestamp = DateTime.Now.ToString("yyyyMMddHHmmss");
+                    string backupPath = Path.Combine(backupDir, $"Temp_{timestamp}");
+                    
+                    // 简单复制整个临时目录
+                    await Task.Run(() => CopyDirectory(tempPath, backupPath));
+
+                    //UpdateStatus($"[调试] 临时文件已备份到: {backupPath}");
+                }
+            }
+            catch (Exception ex)
+            {
+                UpdateStatus($"创建临时文件备份失败: {ex.Message}");
+            }
+        }
+
+        /// <summary>
+        /// 递归复制目录
+        /// </summary>
+        private void CopyDirectory(string sourceDir, string targetDir)
+        {
+            Directory.CreateDirectory(targetDir);
+
+            foreach (var file in Directory.GetFiles(sourceDir))
+            {
+                string fileName = Path.GetFileName(file);
+                string targetFile = Path.Combine(targetDir, fileName);
+                File.Copy(file, targetFile, true);
+            }
+
+            foreach (var subDir in Directory.GetDirectories(sourceDir))
+            {
+                string dirName = Path.GetFileName(subDir);
+                string targetSubDir = Path.Combine(targetDir, dirName);
+                CopyDirectory(subDir, targetSubDir);
+            }
+        }
     }
 }