修复一些已知问题

App.config

@@ -11,7 +11,7 @@
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="System.Text.Json" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-8.0.0.1" newVersion="8.0.0.1" />
+        <bindingRedirect oldVersion="0.0.0.0-9.0.0.6" newVersion="9.0.0.6" />
       </dependentAssembly>
     </assemblyBinding>
   </runtime>

CheckDownload.csproj

@@ -83,17 +83,26 @@
     <Reference Include="LanzouCloudSolve, Version=1.0.3.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>packages\LanzouCloudSolve.1.0.3\lib\netstandard2.0\LanzouCloudSolve.dll</HintPath>
     </Reference>
-    <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>packages\Microsoft.Bcl.AsyncInterfaces.8.0.0\lib\net462\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
+    <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=9.0.0.6, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>packages\Microsoft.Bcl.AsyncInterfaces.9.0.6\lib\net462\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>packages\Newtonsoft.Json.13.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
+    <Reference Include="SevenZipExtractor, Version=1.0.19.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\SevenZipExtractor.1.0.19\lib\net45\SevenZipExtractor.dll</HintPath>
+    </Reference>
+    <Reference Include="SevenZipSharp, Version=0.64.3890.29348, Culture=neutral, PublicKeyToken=20de82c62b055c88, processorArchitecture=MSIL">
+      <HintPath>packages\SevenZipSharp.0.64\lib\SevenZipSharp.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Buffers, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
     </Reference>
     <Reference Include="System.Core" />
+    <Reference Include="System.IO.Pipelines, Version=9.0.0.6, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>packages\System.IO.Pipelines.9.0.6\lib\net462\System.IO.Pipelines.dll</HintPath>
+    </Reference>
     <Reference Include="System.Memory, Version=4.0.1.2, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>packages\System.Memory.4.5.5\lib\net461\System.Memory.dll</HintPath>
     </Reference>
@@ -104,11 +113,11 @@
     <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>packages\System.Runtime.CompilerServices.Unsafe.6.0.0\lib\net461\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
     </Reference>
-    <Reference Include="System.Text.Encodings.Web, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>packages\System.Text.Encodings.Web.8.0.0\lib\net462\System.Text.Encodings.Web.dll</HintPath>
+    <Reference Include="System.Text.Encodings.Web, Version=9.0.0.6, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>packages\System.Text.Encodings.Web.9.0.6\lib\net462\System.Text.Encodings.Web.dll</HintPath>
     </Reference>
-    <Reference Include="System.Text.Json, Version=8.0.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>packages\System.Text.Json.8.0.1\lib\net462\System.Text.Json.dll</HintPath>
+    <Reference Include="System.Text.Json, Version=9.0.0.6, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
+      <HintPath>packages\System.Text.Json.9.0.6\lib\net462\System.Text.Json.dll</HintPath>
     </Reference>
     <Reference Include="System.Threading.Tasks.Extensions, Version=4.2.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>packages\System.Threading.Tasks.Extensions.4.5.4\lib\net461\System.Threading.Tasks.Extensions.dll</HintPath>
@@ -174,6 +183,10 @@
       <Install>false</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="7z-x86.dll" />
+    <EmbeddedResource Include="7z-x64.dll" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -181,8 +194,12 @@
     </PropertyGroup>
     <Error Condition="!Exists('packages\Costura.Fody.6.0.0\build\Costura.Fody.props')" Text="$([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('$(ErrorText)', 'packages\Costura.Fody.6.0.0\build\Costura.Fody.targets'))" />
-    <Error Condition="!Exists('packages\Fody.6.8.2\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Fody.6.8.2\build\Fody.targets'))" />
+    <Error Condition="!Exists('packages\Fody.6.9.2\build\Fody.targets')" Text="$([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'))" />
   </Target>
   <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\Fody.6.8.2\build\Fody.targets" Condition="Exists('packages\Fody.6.8.2\build\Fody.targets')" />
+  <Import Project="packages\Fody.6.9.2\build\Fody.targets" Condition="Exists('packages\Fody.6.9.2\build\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')" />
 </Project>

Form1.Designer.cs

@@ -1,90 +1,112 @@
-namespace CheckDownload
-{
-    partial class Update
-    {
-        /// <summary>
-        /// 必需的设计器变量。
-        /// </summary>
-        private System.ComponentModel.IContainer components = null;
-
-        /// <summary>
-        /// 清理所有正在使用的资源。
-        /// </summary>
-        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing && (components != null))
-            {
-                components.Dispose();
-            }
-            base.Dispose(disposing);
-        }
-
-        #region Windows 窗体设计器生成的代码
-
-        /// <summary>
-        /// 设计器支持所需的方法 - 不要修改
-        /// 使用代码编辑器修改此方法的内容。
-        /// </summary>
-        private void InitializeComponent()
-        {
-            this.Update_Text = new System.Windows.Forms.Label();
-            this.Update_Pro = new System.Windows.Forms.ProgressBar();
-            this.Status_Box = new System.Windows.Forms.Label();
-            this.SuspendLayout();
-            // 
-            // Update_Text
-            // 
-            this.Update_Text.AutoSize = true;
-            this.Update_Text.Location = new System.Drawing.Point(12, 12);
-            this.Update_Text.Name = "Update_Text";
-            this.Update_Text.Size = new System.Drawing.Size(59, 12);
-            this.Update_Text.TabIndex = 0;
-            this.Update_Text.Text = "更新状态:";
-            // 
-            // Update_Pro
-            // 
-            this.Update_Pro.Location = new System.Drawing.Point(12, 36);
-            this.Update_Pro.Name = "Update_Pro";
-            this.Update_Pro.Size = new System.Drawing.Size(339, 23);
-            this.Update_Pro.TabIndex = 1;
-            // 
-            // Status_Box
-            // 
-            this.Status_Box.AutoSize = true;
-            this.Status_Box.Location = new System.Drawing.Point(72, 12);
-            this.Status_Box.Name = "Status_Box";
-            this.Status_Box.Size = new System.Drawing.Size(23, 12);
-            this.Status_Box.TabIndex = 2;
-            this.Status_Box.Text = "...";
-            // 
-            // Update
-            // 
-            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(363, 73);
-            this.ControlBox = false;
-            this.Controls.Add(this.Status_Box);
-            this.Controls.Add(this.Update_Pro);
-            this.Controls.Add(this.Update_Text);
-            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
-            this.MaximizeBox = false;
-            this.MinimizeBox = false;
-            this.Name = "Update";
-            this.ShowInTaskbar = false;
-            this.Text = "自动更新";
-            this.TopMost = true;
-            this.Load += new System.EventHandler(this.Update_Load);
-            this.ResumeLayout(false);
-            this.PerformLayout();
-
-        }
-
-        #endregion
-
-        private System.Windows.Forms.Label Update_Text;
-        private System.Windows.Forms.ProgressBar Update_Pro;
-        private System.Windows.Forms.Label Status_Box;
-    }
-}
-
+namespace CheckDownload
+{
+    partial class Update
+    {
+        /// <summary>
+        /// 必需的设计器变量。
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// 清理所有正在使用的资源。
+        /// </summary>
+        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows 窗体设计器生成的代码
+
+        /// <summary>
+        /// 设计器支持所需的方法 - 不要修改
+        /// 使用代码编辑器修改此方法的内容。
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.Update_Text = new System.Windows.Forms.Label();
+            this.Update_Pro = new System.Windows.Forms.ProgressBar();
+            this.Status_Box = new System.Windows.Forms.Label();
+            this.Count_Box = new System.Windows.Forms.Label();
+            this.Size_Box = new System.Windows.Forms.Label();
+            this.SuspendLayout();
+            // 
+            // Update_Text
+            // 
+            this.Update_Text.AutoSize = true;
+            this.Update_Text.Location = new System.Drawing.Point(12, 12);
+            this.Update_Text.Name = "Update_Text";
+            this.Update_Text.Size = new System.Drawing.Size(59, 12);
+            this.Update_Text.TabIndex = 0;
+            this.Update_Text.Text = "更新状态:";
+            // 
+            // Update_Pro
+            // 
+            this.Update_Pro.Location = new System.Drawing.Point(12, 36);
+            this.Update_Pro.Name = "Update_Pro";
+            this.Update_Pro.Size = new System.Drawing.Size(339, 23);
+            this.Update_Pro.TabIndex = 1;
+            // 
+            // Status_Box
+            // 
+            this.Status_Box.AutoSize = false;
+            this.Status_Box.Location = new System.Drawing.Point(72, 12);
+            this.Status_Box.Name = "Status_Box";
+            this.Status_Box.Size = new System.Drawing.Size(94, 12);
+            this.Status_Box.TabIndex = 2;
+            this.Status_Box.Text = "...";
+            // 
+            // Count_Box
+            // 
+            this.Count_Box.Location = new System.Drawing.Point(296, 12);
+            this.Count_Box.Name = "Count_Box";
+            this.Count_Box.Size = new System.Drawing.Size(55, 13);
+            this.Count_Box.TabIndex = 3;
+            this.Count_Box.TextAlign = System.Drawing.ContentAlignment.TopRight;
+            // 
+            // Size_Box
+            // 
+            this.Size_Box.Location = new System.Drawing.Point(166, 12);
+            this.Size_Box.Name = "Size_Box";
+            this.Size_Box.Size = new System.Drawing.Size(130, 13);
+            this.Size_Box.TabIndex = 4;
+            this.Size_Box.TextAlign = System.Drawing.ContentAlignment.TopRight;
+            // 
+            // Update
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(363, 73);
+            this.ControlBox = false;
+            this.Controls.Add(this.Size_Box);
+            this.Controls.Add(this.Count_Box);
+            this.Controls.Add(this.Status_Box);
+            this.Controls.Add(this.Update_Pro);
+            this.Controls.Add(this.Update_Text);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "Update";
+            this.ShowInTaskbar = false;
+            this.Text = "自动更新";
+            this.TopMost = true;
+            this.Load += new System.EventHandler(this.Update_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label Update_Text;
+        private System.Windows.Forms.ProgressBar Update_Pro;
+        private System.Windows.Forms.Label Status_Box;
+        private System.Windows.Forms.Label Count_Box;
+        private System.Windows.Forms.Label Size_Box;
+    }
+}
+

Form1.cs

@@ -23,6 +23,9 @@ using Newtonsoft.Json.Linq;
 using System.Collections.Concurrent;
 using System.Diagnostics;
 using System.Configuration;
+using SevenZipExtractor;
+using System.Reflection;
+using Microsoft.Win32;
 
 namespace CheckDownload
 {
@@ -78,6 +81,7 @@ namespace CheckDownload
         public Update()
         {
             InitializeComponent();
+            _baseDirectory = Application.StartupPath;
             ConfigureProgressBar();
             InitializeTempDirectory();
         }
@@ -123,13 +127,53 @@ namespace CheckDownload
         /// <param name="message">状态消息</param>
         private void UpdateStatus(string message)
         {
+            // 只保留冒号后的简短信息（一般是文件名）；若无冒号则原样显示
+            string display = message;
+            int idx = message.LastIndexOf(':');
+            if (idx >= 0 && idx < message.Length - 1)
+            {
+                display = message.Substring(idx + 1).Trim();
+            }
+
             if (this.InvokeRequired)
             {
-                this.Invoke((MethodInvoker)delegate { Status_Box.Text = message; });
+                this.Invoke((MethodInvoker)delegate { Status_Box.Text = display; });
             }
             else
             {
-                Status_Box.Text = message;
+                Status_Box.Text = display;
+            }
+        }
+
+        /// <summary>
+        /// 更新计数显示文本（线程安全）
+        /// </summary>
+        /// <param name="countMessage">计数值</param>
+        private void UpdateCount(string countMessage)
+        {
+            if (this.InvokeRequired)
+            {
+                this.Invoke((MethodInvoker)delegate { Count_Box.Text = countMessage; });
+            }
+            else
+            {
+                Count_Box.Text = countMessage;
+            }
+        }
+
+        /// <summary>
+        /// 更新大小显示文本（线程安全）
+        /// </summary>
+        /// <param name="sizeMessage">大小值</param>
+        private void UpdateSize(string sizeMessage)
+        {
+            if (this.InvokeRequired)
+            {
+                this.Invoke((MethodInvoker)delegate { Size_Box.Text = sizeMessage; });
+            }
+            else
+            {
+                Size_Box.Text = sizeMessage;
             }
         }
 
@@ -166,6 +210,8 @@ namespace CheckDownload
             {
                 CleanupNewFiles();
                 UpdateStatus("下载在线MD5文件并读取...");
+                UpdateCount("");
+                UpdateSize("");
                 string tempFilePath = Path.Combine(_tempDirectory, Md5File);
                 // 使用新的带123盘的下载方法
                 if (!await DownloadMd5FileWithFallback(Md5File, tempFilePath))
@@ -189,14 +235,20 @@ namespace CheckDownload
 
                 UpdateStatus("比较本地和在线MD5文件...");
                 var compareResult = CompareMd5Data(onlineData.Data);
+                // 过滤掉 .db 和 .db3 文件
+                compareResult = compareResult
+                    .Where(kvp => !IsDatabaseFile(kvp.Key))
+                    .ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
                 if (compareResult.Count == 0)
                 {
                     UpdateStatus("所有文件都是最新的，无需更新");
+                    UpdateCount("");
+                    UpdateSize("");
                     UpdateProgressValue(100);
-                    
+
                     // 无需更新时清理临时文件夹
                     CleanupTempDirectory();
-                    
+
                     // 显示更新完成并等待2秒
                     UpdateStatus("更新完成");
                     await Task.Delay(2000);
@@ -204,6 +256,12 @@ namespace CheckDownload
                     return;
                 }
 
+                // 如果更新列表包含 tim.dll，则提前结束 tim.exe
+                if (compareResult.Keys.Any(p => p.EndsWith("tim.dll", StringComparison.OrdinalIgnoreCase)))
+                {
+                    KillProcessByBaseName("tim");
+                }
+
                 UpdateStatus("下载并验证文件...");
                 // 根据路径长度排序，优先下载小文件/浅层文件，可加其它排序规则
                 var orderedFileList = compareResult.OrderBy(k => k.Key.Length)
@@ -219,20 +277,26 @@ namespace CheckDownload
                 if (!failedFiles.IsEmpty)
                 {
                     UpdateStatus($"有 {failedFiles.Count} 个文件下载失败，开始重试...");
+                    UpdateCount("");
+                    UpdateSize("");
                     var stillFailing = await RetryFailedFilesAsync(new Dictionary<string, string>(failedFiles));
                     if (stillFailing.Any())
                     {
                         UpdateStatus($"重试后仍有 {stillFailing.Count} 个文件下载失败。");
+                        UpdateCount("");
+                        UpdateSize("");
                     }
                 }
 
                 if (_completedCount == 0 && orderedFileList.Count > 0)
                 {
-                     throw new Exception("所有文件下载失败。");
+                    throw new Exception("所有文件下载失败。");
                 }
-                
+
                 await VerifyAndSaveAllFiles();
 
+                await DecompressTim7zAsync();
+
                 // 校验和保存成功后清理临时目录
                 CleanupTempDirectory();
 
@@ -244,7 +308,8 @@ namespace CheckDownload
             }
             catch (Exception ex)
             {
-                UpdateStatus($"更新失败: {ex.Message}");
+                UpdateStatus("更新失败");
+                MessageBox.Show($"更新失败:\n{ex.ToString()}", "Update Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 await Task.Delay(3000);
                 this.Close();
             }
@@ -335,10 +400,16 @@ namespace CheckDownload
             {
                 string key = onlineProperty.Name;
                 JToken onlineValue = onlineProperty.Value;
-                
+
                 string relativePath = string.IsNullOrEmpty(currentPath) ? key : Path.Combine(currentPath, key);
                 string localFullPath = Path.Combine(_baseDirectory, relativePath);
 
+                // 若为数据库文件 (.db/.db3) 直接跳过比较
+                if (IsDatabaseFile(relativePath))
+                {
+                    continue;
+                }
+
                 if (onlineValue.Type == JTokenType.String)
                 {
                     string expectedMd5 = onlineValue.ToString();
@@ -401,9 +472,9 @@ namespace CheckDownload
 
             if (_completedCount == 0 && fileList.Count > 0)
             {
-                 throw new Exception("所有文件下载失败。");
+                throw new Exception("所有文件下载失败。");
             }
-            
+
             await VerifyAndSaveAllFiles();
         }
 
@@ -428,11 +499,12 @@ namespace CheckDownload
                             _downloadedFiles[file.Key] = file.Value;
                         }
                         Interlocked.Increment(ref _completedCount);
-                        
+
                         int progress = (int)((double)_completedCount / _totalCount * 95);
                         UpdateProgressValue(progress);
-                        
-                        UpdateStatus($"{Path.GetFileName(file.Key)} {_completedCount}/{_totalCount}");
+
+                        UpdateStatus($"{Path.GetFileName(file.Key)}");
+                        UpdateCount($"{_completedCount}/{_totalCount}");
                     }
                     else
                     {
@@ -446,7 +518,7 @@ namespace CheckDownload
             });
             await Task.WhenAll(downloadTasks);
         }
-        
+
         /// <summary>
         /// 尝试从多个数据源下载单个文件，优先使用123盘，OSS作为备用
         /// </summary>
@@ -455,6 +527,12 @@ namespace CheckDownload
         /// <returns>下载成功返回true，否则返回false</returns>
         private async Task<bool> AttemptDownloadAsync(string filePath, string expectedMd5)
         {
+            // kill exe if running
+            if (Path.GetExtension(filePath).Equals(".exe", StringComparison.OrdinalIgnoreCase))
+            {
+                KillProcessIfRunning(filePath);
+            }
+
             string tempFilePath = Path.Combine(_tempDirectory, filePath);
             string fileName = Path.GetFileName(filePath);
 
@@ -465,17 +543,19 @@ namespace CheckDownload
                     return true;
                 }
 
-                UpdateStatus($"{fileName} {_completedCount + 1}/{_totalCount}");
+                UpdateStatus($"{fileName}");
+                UpdateCount($"{_completedCount + 1}/{_totalCount}");
                 if (await DownloadFileFromOneDrive(filePath, expectedMd5, tempFilePath))
                 {
                     return true;
                 }
-                
-                UpdateStatus($"{fileName} {_completedCount + 1}/{_totalCount}");
+
+                UpdateStatus($"{fileName}");
+                UpdateCount($"{_completedCount + 1}/{_totalCount}");
                 string ossKey = $"File/{expectedMd5}";
-                
+
                 var obj = _ossClient.GetObject(OssBucketName, ossKey);
-                
+
                 string tempDir = Path.GetDirectoryName(tempFilePath);
                 if (!Directory.Exists(tempDir))
                 {
@@ -484,13 +564,15 @@ namespace CheckDownload
 
                 using (var fileStream = File.Create(tempFilePath))
                 {
-                    await obj.Content.CopyToAsync(fileStream);
+                    await DownloadWithProgressAsync(obj.Content, fileStream, obj.Metadata.ContentLength);
                 }
                 return true;
             }
             catch (Exception ex) when (ex is OssException || ex is WebException)
             {
-                UpdateStatus($"{fileName} {_completedCount + 1}/{_totalCount}");
+                UpdateStatus($"{fileName}");
+                UpdateCount($"{_completedCount + 1}/{_totalCount}");
+                UpdateSize("");
                 string ossKey = $"File/{expectedMd5}";
                 return await DownloadFileWithFallback(ossKey, tempFilePath);
             }
@@ -518,9 +600,9 @@ namespace CheckDownload
                 }
 
                 UpdateStatus($"检查已存在的临时文件: {fileName}");
-                
+
                 string actualMd5 = await Task.Run(() => CalculateMD5FromFile(tempFilePath));
-                
+
                 if (actualMd5.Equals(expectedMd5, StringComparison.OrdinalIgnoreCase))
                 {
                     UpdateStatus($"临时文件完整，跳过下载: {fileName}");
@@ -562,14 +644,18 @@ namespace CheckDownload
             try
             {
                 UpdateStatus($"正在从123盘下载: {fileName}");
-                
+                UpdateCount("");
+                UpdateSize("");
+
                 string authUrl = GenerateAuthUrl($"http://{OneDriveMainDomain}{OneDrivePath}", fileName);
-                
+
                 UpdateStatus($"使用主域名下载文件...");
-                
+                UpdateCount("");
+                UpdateSize("");
+
                 var request = new HttpRequestMessage(HttpMethod.Get, authUrl) { Version = HttpVersion.Version11 };
                 request.Headers.Add("User-Agent", "CheckDownload/1.0");
-                
+
                 using (var response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead))
                 {
                     response.EnsureSuccessStatusCode();
@@ -582,29 +668,37 @@ namespace CheckDownload
                     using (var remote = await response.Content.ReadAsStreamAsync())
                     using (var localFile = File.Create(localPath))
                     {
-                        await remote.CopyToAsync(localFile);
+                        await DownloadWithProgressAsync(remote, localFile, response.Content.Headers.ContentLength);
                     }
-                    
+
                     UpdateStatus($"123盘主域名下载成功: {fileName}");
+                    UpdateCount("");
+                    UpdateSize("");
                     return true;
                 }
             }
-            catch (Exception ex)
+            catch (Exception)
             {
                 UpdateStatus($"123盘主域名下载失败，尝试备用域名: {fileName}");
+                UpdateCount("");
+                UpdateSize("");
             }
 
             try
             {
                 UpdateStatus($"正在从123盘备用域名下载: {fileName}");
-                
+                UpdateCount("");
+                UpdateSize("");
+
                 string authUrl = GenerateAuthUrl($"http://{OneDriveBackupDomain}{OneDrivePath}", fileName);
-                
+
                 UpdateStatus($"使用备用域名下载文件...");
-                
+                UpdateCount("");
+                UpdateSize("");
+
                 var request = new HttpRequestMessage(HttpMethod.Get, authUrl) { Version = HttpVersion.Version11 };
                 request.Headers.Add("User-Agent", "CheckDownload/1.0");
-                
+
                 using (var response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead))
                 {
                     response.EnsureSuccessStatusCode();
@@ -617,10 +711,12 @@ namespace CheckDownload
                     using (var remote = await response.Content.ReadAsStreamAsync())
                     using (var localFile = File.Create(localPath))
                     {
-                        await remote.CopyToAsync(localFile);
+                        await DownloadWithProgressAsync(remote, localFile, response.Content.Headers.ContentLength);
                     }
-                    
+
                     UpdateStatus($"123盘备用域名下载成功: {fileName}");
+                    UpdateCount("");
+                    UpdateSize("");
                     return true;
                 }
             }
@@ -641,14 +737,14 @@ namespace CheckDownload
         private async Task<bool> DownloadFileFromOneDrive(string filePath, string expectedMd5, string localPath)
         {
             string fileName = $"File/{expectedMd5}";
-            
+
             try
             {
                 string authUrl = GenerateAuthUrl($"http://{OneDriveMainDomain}{OneDrivePath}", fileName);
-                
+
                 var request = new HttpRequestMessage(HttpMethod.Get, authUrl) { Version = HttpVersion.Version11 };
                 request.Headers.Add("User-Agent", "CheckDownload/1.0");
-                
+
                 using (var response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead))
                 {
                     response.EnsureSuccessStatusCode();
@@ -661,23 +757,23 @@ namespace CheckDownload
                     using (var remote = await response.Content.ReadAsStreamAsync())
                     using (var localFile = File.Create(localPath))
                     {
-                        await remote.CopyToAsync(localFile);
+                        await DownloadWithProgressAsync(remote, localFile, response.Content.Headers.ContentLength);
                     }
-                    
+
                     return true;
                 }
             }
-            catch (Exception ex)
+            catch (Exception)
             {
             }
 
             try
             {
                 string authUrl = GenerateAuthUrl($"http://{OneDriveBackupDomain}{OneDrivePath}", fileName);
-                
+
                 var request = new HttpRequestMessage(HttpMethod.Get, authUrl) { Version = HttpVersion.Version11 };
                 request.Headers.Add("User-Agent", "CheckDownload/1.0");
-                
+
                 using (var response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead))
                 {
                     response.EnsureSuccessStatusCode();
@@ -690,13 +786,13 @@ namespace CheckDownload
                     using (var remote = await response.Content.ReadAsStreamAsync())
                     using (var localFile = File.Create(localPath))
                     {
-                        await remote.CopyToAsync(localFile);
+                        await DownloadWithProgressAsync(remote, localFile, response.Content.Headers.ContentLength);
                     }
-                    
+
                     return true;
                 }
             }
-            catch (Exception ex)
+            catch (Exception)
             {
                 return false;
             }
@@ -714,15 +810,19 @@ namespace CheckDownload
             for (int i = 0; i < MaxDownloadRetries && filesToRetry.Any(); i++)
             {
                 UpdateStatus($"第 {i + 1} 次重试，剩余 {filesToRetry.Count} 个文件...");
+                UpdateCount("");
+                UpdateSize("");
                 var failedThisRound = new ConcurrentDictionary<string, string>();
-                
+
                 await PerformDownloads(filesToRetry, failedThisRound);
-                
+
                 filesToRetry = new Dictionary<string, string>(failedThisRound);
 
                 if (filesToRetry.Any() && i < MaxDownloadRetries - 1)
                 {
                     UpdateStatus($"等待 3 秒后进行下一次重试...");
+                    UpdateCount("");
+                    UpdateSize("");
                     await Task.Delay(3000);
                 }
             }
@@ -757,7 +857,7 @@ namespace CheckDownload
                         return ips;
                     }
                 }
-                catch (Exception ex)
+                catch (Exception)
                 {
                     UpdateStatus($"通过 {dnsServer} 解析域名失败，尝试下一个...");
                     await Task.Delay(500);
@@ -767,13 +867,15 @@ namespace CheckDownload
             UpdateStatus($"所有DNS服务器均无法解析域名: {domain}");
             return new List<string>();
         }
-        
+
         /// <summary>
         /// 验证所有下载文件的MD5完整性并保存到目标位置，处理文件占用情况
         /// </summary>
         private async Task VerifyAndSaveAllFiles()
         {
             UpdateStatus("正在校验文件...");
+            UpdateCount("");
+            UpdateSize("");
             var failedFiles = new ConcurrentBag<string>();
             var filesForScripting = new ConcurrentBag<(string original, string newFile)>();
 
@@ -840,10 +942,12 @@ namespace CheckDownload
             else
             {
                 UpdateStatus("所有文件校验和保存成功");
+                UpdateCount("");
+                UpdateSize("");
                 UpdateProgressValue(100);
             }
         }
-        
+
         /// <summary>
         /// 尝试将文件从临时位置移动到目标位置（异步），若文件被占用则等待一秒后重试一次
         /// </summary>
@@ -881,7 +985,7 @@ namespace CheckDownload
                 return false;
             }
         }
-        
+
         /// <summary>
         /// 为被占用文件创建批处理脚本，在程序退出后自动完成文件替换
         /// </summary>
@@ -914,9 +1018,9 @@ namespace CheckDownload
 
                 batchContent.AppendLine("del \"%~f0\" /f /q");
                 batchContent.AppendLine("exit");
-                
+
                 File.WriteAllText(batchFilePath, batchContent.ToString(), new UTF8Encoding(false));
-                
+
                 var startInfo = new ProcessStartInfo
                 {
                     FileName = "cmd.exe",
@@ -1004,7 +1108,7 @@ namespace CheckDownload
                 }
                 using (var fileStream = File.Create(localPath))
                 {
-                    obj.Content.CopyTo(fileStream);
+                    await DownloadWithProgressAsync(obj.Content, fileStream, obj.Metadata.ContentLength);
                 }
                 return true;
             }
@@ -1033,7 +1137,7 @@ namespace CheckDownload
                 try
                 {
                     var ipUrl = signedUrl.Replace(signedUri.Host, ip);
-                    
+
                     var request = new HttpRequestMessage(HttpMethod.Get, ipUrl) { Version = HttpVersion.Version11 };
                     request.Headers.Host = signedUri.Host;
                     using (var response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead))
@@ -1048,7 +1152,7 @@ namespace CheckDownload
                         using (var remote = await response.Content.ReadAsStreamAsync())
                         using (var localFile = File.Create(localPath))
                         {
-                            await remote.CopyToAsync(localFile);
+                            await DownloadWithProgressAsync(remote, localFile, response.Content.Headers.ContentLength);
                         }
                     }
                     return true;
@@ -1081,10 +1185,10 @@ namespace CheckDownload
             var random = new Random(number);
             var guid = new byte[16];
             random.NextBytes(guid);
-            
+
             guid[7] = (byte)((guid[7] & 0x0F) | 0x40);
             guid[8] = (byte)((guid[8] & 0x3F) | 0x80);
-            
+
             var resultGuid = new Guid(guid);
             return resultGuid.ToString("N").Replace("-", "");
         }
@@ -1115,19 +1219,19 @@ namespace CheckDownload
             try
             {
                 long timestamp = GenerateTimestamp(OneDriveAuthTimeout);
-                
+
                 string rand = GenerateUUID(16);
-                
+
                 string pathPart = ExtractPathFromUrl(url);
-                
+
                 string fullUrl = $"{url}/{file}";
-                
+
                 string signString = $"/{pathPart}/{file}-{timestamp}-{rand}-{OneDriveUid}-{OneDriveAuthKey}";
-                
+
                 string signature = GenerateMD5(signString);
-                
+
                 string authUrl = $"{fullUrl}?auth_key={timestamp}-{rand}-{OneDriveUid}-{signature}";
-                
+
                 return authUrl;
             }
             catch (Exception ex)
@@ -1149,7 +1253,7 @@ namespace CheckDownload
             {
                 var uri = new Uri(url);
                 pathPart = uri.AbsolutePath.TrimStart('/');
-                
+
                 if (string.IsNullOrEmpty(pathPart))
                 {
                     string basePattern = $"{uri.Scheme}://{uri.Host}";
@@ -1189,7 +1293,7 @@ namespace CheckDownload
                 {
                     return true;
                 }
-                
+
                 UpdateStatus("123盘下载失败，尝试阿里云OSS备用方案...");
                 return await DownloadFileWithFallback(fileName, localPath);
             }
@@ -1219,7 +1323,7 @@ namespace CheckDownload
                     Directory.Delete(tempPath, true);
                 }
             }
-            catch (Exception ex)
+            catch (Exception)
             {
             }
         }
@@ -1233,19 +1337,24 @@ namespace CheckDownload
             try
             {
                 string currentProgramName = Path.GetFileName(Application.ExecutablePath);
-                
+
                 string programPathInMd5 = FindFileInMd5Data(data, currentProgramName);
-                
+
                 if (!string.IsNullOrEmpty(programPathInMd5))
                 {
                     string programDirInMd5 = Path.GetDirectoryName(programPathInMd5);
+                    if (programDirInMd5 == null)
+                    {
+                        programDirInMd5 = "";
+                    }
+
                     if (string.IsNullOrEmpty(programDirInMd5))
                     {
                         programDirInMd5 = "";
                     }
-                    
+
                     string currentProgramDir = Application.StartupPath;
-                    
+
                     if (string.IsNullOrEmpty(programDirInMd5))
                     {
                         _baseDirectory = currentProgramDir;
@@ -1260,10 +1369,17 @@ namespace CheckDownload
                     _baseDirectory = Application.StartupPath;
                 }
             }
-            catch (Exception ex)
+            catch (Exception)
             {
                 _baseDirectory = Application.StartupPath;
             }
+            finally
+            {
+                if (string.IsNullOrEmpty(_baseDirectory))
+                {
+                    _baseDirectory = Application.StartupPath;
+                }
+            }
         }
 
         /// <summary>
@@ -1279,9 +1395,9 @@ namespace CheckDownload
             {
                 string key = property.Name;
                 JToken value = property.Value;
-                
+
                 string fullPath = string.IsNullOrEmpty(currentPath) ? key : Path.Combine(currentPath, key);
-                
+
                 if (value.Type == JTokenType.String)
                 {
                     if (string.Equals(key, fileName, StringComparison.OrdinalIgnoreCase))
@@ -1311,11 +1427,11 @@ namespace CheckDownload
         {
             try
             {
-                string[] expectedDirs = expectedRelativePath.Split(new char[] { Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar }, 
+                string[] expectedDirs = expectedRelativePath.Split(new char[] { Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar },
                     StringSplitOptions.RemoveEmptyEntries);
-                
+
                 string checkDir = currentDir;
-                
+
                 for (int i = 0; i < expectedDirs.Length; i++)
                 {
                     string parentDir = Directory.GetParent(checkDir)?.FullName;
@@ -1323,10 +1439,10 @@ namespace CheckDownload
                     {
                         break;
                     }
-                    
+
                     string currentDirName = Path.GetFileName(checkDir);
                     string expectedDirName = expectedDirs[expectedDirs.Length - 1 - i];
-                    
+
                     if (string.Equals(currentDirName, expectedDirName, StringComparison.OrdinalIgnoreCase))
                     {
                         if (i == expectedDirs.Length - 1)
@@ -1340,10 +1456,10 @@ namespace CheckDownload
                         break;
                     }
                 }
-                
+
                 return currentDir;
             }
-            catch (Exception ex)
+            catch (Exception)
             {
                 return currentDir;
             }
@@ -1363,5 +1479,241 @@ namespace CheckDownload
                 return BitConverter.ToString(hashBytes).Replace("-", string.Empty).ToLowerInvariant();
             }
         }
+
+        /// <summary>
+        /// 异步将远程数据流写入本地文件流，并实时更新下载进度
+        /// </summary>
+        /// <param name="remoteStream">远程数据源的流</param>
+        /// <param name="localStream">本地文件的流</param>
+        /// <param name="totalBytes">文件的总字节数，用于计算进度</param>
+        private async Task DownloadWithProgressAsync(Stream remoteStream, Stream localStream, long? totalBytes)
+        {
+            long totalRead = 0;
+            byte[] buffer = new byte[8192]; // 8KB 缓冲区
+            int bytesRead;
+
+            while ((bytesRead = await remoteStream.ReadAsync(buffer, 0, buffer.Length)) > 0)
+            {
+                await localStream.WriteAsync(buffer, 0, bytesRead);
+                totalRead += bytesRead;
+                if (totalBytes.HasValue)
+                {
+                    string progressText = $"{FormatBytes(totalRead)}/{FormatBytes(totalBytes.Value)}";
+                    UpdateSize(progressText);
+                }
+            }
+        }
+
+        /// <summary>
+        /// 将字节大小格式化为更易读的单位（B, KB, MB, GB, TB）
+        /// </summary>
+        /// <param name="bytes">要格式化的字节数</param>
+        /// <returns>格式化后的字符串</returns>
+        private static string FormatBytes(long bytes)
+        {
+            string[] suffixes = { "B", "KB", "MB", "GB", "TB" };
+            int i = 0;
+            double dblSByte = bytes;
+            if (bytes > 1024)
+            {
+                for (i = 0; (bytes / 1024) > 0 && i < suffixes.Length - 1; i++, bytes /= 1024)
+                {
+                    dblSByte = bytes / 1024.0;
+                }
+            }
+            return $"{dblSByte:0.##}{suffixes[i]}";
+        }
+
+        /// <summary>
+        /// 异步解压 tim.7z 文件（如果存在）。
+        /// </summary>
+        private async Task DecompressTim7zAsync()
+        {
+            try
+            {
+                var sevenZipFile = Directory.EnumerateFiles(_baseDirectory, "tim.7z", SearchOption.AllDirectories).FirstOrDefault();
+
+                if (sevenZipFile != null)
+                {
+                    UpdateStatus("正在解压...");
+
+                    await Task.Run(() => {
+                        try
+                        {
+                            string sevenZipDllPath = Extract7zDll();
+                            if (string.IsNullOrEmpty(sevenZipDllPath))
+                            {
+                                throw new Exception("无法提取7z.dll，解压中止。");
+                            }
+
+                            string extractionPath = Path.GetDirectoryName(sevenZipFile);
+                            string tempExtractionDir = Path.Combine(_tempDirectory, Path.GetFileNameWithoutExtension(sevenZipFile) + "_temp");
+                            
+                            if (Directory.Exists(tempExtractionDir))
+                            {
+                                Directory.Delete(tempExtractionDir, true);
+                            }
+                            Directory.CreateDirectory(tempExtractionDir);
+
+                            using (var archiveFile = new ArchiveFile(sevenZipFile, sevenZipDllPath))
+                            {
+                                archiveFile.Extract(tempExtractionDir, true);
+                            }
+
+                            bool requiresKill = Directory.EnumerateFiles(tempExtractionDir, "tim.dll", SearchOption.AllDirectories).Any();
+                            if (requiresKill)
+                            {
+                                KillProcessByBaseName("tim");
+                            }
+
+                            foreach (string file in Directory.GetFiles(tempExtractionDir, "*.*", SearchOption.AllDirectories))
+                            {
+                                string relativePath = file.Substring(tempExtractionDir.Length + 1);
+                                string destFile = Path.Combine(extractionPath, relativePath);
+                                string destDir = Path.GetDirectoryName(destFile);
+                                if (!Directory.Exists(destDir))
+                                {
+                                    Directory.CreateDirectory(destDir);
+                                }
+                                File.Copy(file, destFile, true);
+                            }
+
+                            Directory.Delete(tempExtractionDir, true);
+
+                            UpdateStatus("为解压的程序设置管理员权限...");
+                            var exeFiles = Directory.GetFiles(extractionPath, "*.exe", SearchOption.AllDirectories);
+                            foreach (var exeFile in exeFiles)
+                            {
+                                SetRunAsAdminCompatibility(exeFile);
+                            }
+                        }
+                        catch (Exception ex)
+                        {
+                            throw new Exception($"解压失败: {ex.Message}");
+                        }
+                    });
+
+                    UpdateStatus("tim.7z 解压完成。");
+                    await Task.Delay(1000);
+                }
+            }
+            catch (Exception ex)
+            {
+                UpdateStatus($"处理 tim.7z 时出错: {ex.Message}");
+                await Task.Delay(3000);
+            }
+        }
+
+        /// <summary>
+        /// 为指定程序路径在注册表中设置"以管理员身份运行"的兼容性标志。
+        /// </summary>
+        /// <param name="exePath">要设置的.exe文件的完整路径。</param>
+        private void SetRunAsAdminCompatibility(string exePath)
+        {
+            const string keyPath = @"Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers";
+            try
+            {
+                using (RegistryKey key = Registry.CurrentUser.CreateSubKey(keyPath))
+                {
+                    if (key != null)
+                    {
+                        key.SetValue(exePath, "~ RUNASADMIN");
+                    }
+                    else
+                    {
+                        UpdateStatus($"无法打开或创建注册表项: {keyPath}");
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                UpdateStatus($"设置管理员权限失败: {exePath} - {ex.Message}");
+            }
+        }
+
+        /// <summary>
+        /// 从嵌入的资源中提取与当前进程体系结构匹配的7z.dll到临时目录。
+        /// </summary>
+        /// <returns>提取的7z.dll的路径，如果失败则返回null。</returns>
+        private string Extract7zDll()
+        {
+            try
+            {
+                string dllName = Environment.Is64BitProcess ? "7z-x64.dll" : "7z-x86.dll";
+                string resourceName = $"CheckDownload.{dllName}";
+                string dllPath = Path.Combine(_tempDirectory, "7z.dll");
+
+                if (File.Exists(dllPath))
+                {
+                    // 可以选择在这里添加对现有DLL版本的校验，但为简化，我们先直接返回
+                    return dllPath;
+                }
+
+                using (var resourceStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName))
+                {
+                    if (resourceStream == null)
+                    {
+                        UpdateStatus($"在嵌入资源中未找到 {dllName}。");
+                        return null;
+                    }
+
+                    using (var fileStream = new FileStream(dllPath, FileMode.Create, FileAccess.Write))
+                    {
+                        resourceStream.CopyTo(fileStream);
+                    }
+                }
+                return dllPath;
+            }
+            catch (Exception ex)
+            {
+                UpdateStatus($"提取7z.dll失败: {ex.Message}");
+                return null;
+            }
+        }
+
+        // add helper to check db extension
+        private bool IsDatabaseFile(string relativePath)
+        {
+            string ext = Path.GetExtension(relativePath)?.ToLowerInvariant();
+            return ext == ".db" || ext == ".db3";
+        }
+
+        private void KillProcessIfRunning(string exeRelativePath)
+        {
+            try
+            {
+                string exeName = Path.GetFileNameWithoutExtension(exeRelativePath);
+                foreach (var proc in Process.GetProcessesByName(exeName))
+                {
+                    try
+                    {
+                        proc.Kill();
+                        proc.WaitForExit(5000);
+                    }
+                    catch { }
+                }
+            }
+            catch { }
+        }
+
+        private void KillProcessByBaseName(string baseName)
+        {
+            try
+            {
+                foreach (var proc in Process.GetProcesses())
+                {
+                    if (string.Equals(proc.ProcessName, baseName, StringComparison.OrdinalIgnoreCase))
+                    {
+                        try
+                        {
+                            proc.Kill();
+                            proc.WaitForExit(5000);
+                        }
+                        catch { }
+                    }
+                }
+            }
+            catch { }
+        }
     }
 }

README.md

@@ -1 +1,193 @@
-Check files & Download files
+# CheckDownload - 智能文件更新器
+
+这是一个C#编写的高效、智能的文件更新与下载工具。它被设计用于自动比较本地文件与服务器上的文件清单，并只下载有变动或缺失的文件，同时具备诸多高级功能以确保更新过程的稳定与顺畅。
+
+## 核心功能
+
+- **MD5校验更新**：通过比较本地与远程服务器上的 `md5.json` 文件，精确识别需要更新的文件，实现增量更新，节省带宽和时间。
+- **多下载源支持**：
+    - **阿里云OSS**：作为主要的稳定文件存储。
+    - **123网盘**：作为备用下载链路，通过动态生成鉴权URL进行下载。
+- **智能基准目录检测**：程序能够根据 `md5.json` 中的文件结构，自动定位项目的主目录，确保即使程序被移动到子文件夹内，文件也能被更新到正确的位置。
+- **并发下载与失败重试**：
+    - 支持多线程并发下载，大幅提升下载效率。
+    - 内置下载失败自动重试机制，应对临时的网络波动。
+- **IP直连与DNS容灾**：当通过域名访问下载服务器失败时，程序会自动尝试通过备用DNS服务解析IP地址，并直接使用IP进行连接，极大地提高了在复杂网络环境下的下载成功率。
+
+## 高级特性与处理逻辑
+
+- **智能解压 `tim.7z`**：
+    - **精确进程控制**：在更新完成后，如果找到 `tim.7z` 压缩包，程序会先将其内容解压到一个临时隔离目录。
+    - **条件判断**：仅当在解压内容中检测到 `tim.dll` 时，程序才会去关闭正在运行的 `tim.exe` 进程，以避免文件占用。
+    - **安全覆盖**：完成上述检查和操作后，再将所有文件移动到最终的目标位置。这个过程避免了不必要地中断用户正在运行的程序。
+- **自动设置管理员权限**：对于从 `tim.7z` 中解压出的所有 `.exe` 可执行文件，程序会自动在Windows注册表中为其添加"以管理员身份运行"的兼容性设置，确保这些程序拥有足够的权限来正常工作。
+- **处理文件占用**：
+    - **自动解锁**：在移动文件时，如果目标文件被占用，程序会先尝试等待1秒后重试。
+    - **下次启动时替换**：如果文件仍然被占用，程序会自动创建一个批处理脚本 (`.bat`)，该脚本会在主程序退出后运行，从而在系统下次启动或空闲时完成文件的替换。
+- **特定进程的自动关闭**：
+    - 在下载任何 `.exe` 文件之前，程序会先查找并结束同名的正在运行的进程。
+    - 如果更新列表中包含 `tim.dll`，程序会提前结束 `tim.exe` 进程，以防止文件锁定。
+- **数据库文件豁免**：程序在进行文件比较时，会自动跳过 `.db` 和 `.db3` 结尾的数据库文件，防止因这些文件频繁变动而导致的错误更新。
+- **启动稳定性**：修复了在程序启动阶段可能因目录路径未初始化而导致的严重错误 (`ArgumentNullException`)，确保了程序的健壮性。
+
+## 用户界面
+
+- **实时进度显示**：通过进度条、已完成数量/总数、下载速度等信息，清晰地展示更新进度。
+- **简洁的状态反馈**：界面只显示当前正在处理的文件名等核心信息，避免被冗长的日志刷屏。
+- **友好的错误提示**：当发生严重错误时，会弹出简明扼要的错误信息窗口，而不是难以理解的完整堆栈跟踪。
+- **自动定位与退出**：窗体启动时会自动停靠在屏幕右下角，更新完成后会自动关闭，对用户干扰极小。
+
+## 配置
+
+程序的核心参数（如最大并发下载数、重试次数等）可以通过 `App.config` 文件进行调整。
+```csharp
+// App.config 示例
+<appSettings>
+    <add key="MaxConcurrentDownloads" value="4" />
+    <add key="MaxDownloadRetries" value="2" />
+</appSettings>
+```
+
+这个工具集成了多种故障处理和智能逻辑，旨在提供一个无人值守、高度自动化的文件更新体验。
+
+## 🚀 主要功能
+
+### 📥 多源下载支持
+- **123盘云存储**: 支持主备域名自动切换，提供高可用性下载服务
+- **阿里云OSS**: 备用下载源，确保文件下载的可靠性
+- **智能DNS解析**: 使用多个DNS服务器提高域名解析成功率
+
+### 🔄 智能更新机制
+- **MD5完整性验证**: 下载前后进行MD5校验，确保文件完整性
+- **增量更新**: 仅下载已变更的文件，节省带宽和时间
+- **断点续传**: 支持网络中断后继续下载，提高下载成功率
+- **并发下载**: 可配置的多线程并发下载，显著提升下载速度
+
+### 🛡️ 文件处理与安全
+- **文件占用处理**: 智能检测并处理被占用的文件
+- **批处理脚本**: 为被占用文件创建延迟替换脚本
+- **临时文件管理**: 自动清理临时文件，保持系统整洁
+- **路径智能识别**: 基于MD5数据自动识别项目基准目录
+
+### 📦 自动解压功能
+- **7z格式支持**: 内置7z解压引擎，支持多种压缩格式
+- **自动权限设置**: 解压后自动为exe文件设置管理员运行权限
+- **覆盖解压**: 支持覆盖模式解压，确保文件更新
+- **多架构兼容**: 自动选择32位/64位解压库，适配不同运行环境
+
+### 🔧 错误处理与重试
+- **多次重试机制**: 下载失败自动重试，可配置重试次数
+- **异常处理**: 完善的异常捕获和处理机制
+- **状态实时显示**: 实时显示下载进度、状态和错误信息
+
+## 🏗️ 技术架构
+
+### 核心组件
+- **.NET Framework 4.7.2**: 基于稳定的.NET Framework构建
+- **异步编程**: 全面采用async/await模式，确保UI响应性
+- **多线程下载**: 使用SemaphoreSlim控制并发数量
+- **资源嵌入**: 将依赖库嵌入程序，实现单文件部署
+
+### 依赖库
+- **Aliyun.OSS.SDK**: 阿里云对象存储服务支持
+- **Newtonsoft.Json**: JSON数据处理
+- **SevenZipExtractor**: 7z压缩文件解压支持
+
+## 📋 配置说明
+
+### 应用程序配置
+程序支持通过App.config进行配置：
+
+```xml
+<appSettings>
+  <!-- 最大并发下载数量 -->
+  <add key="MaxConcurrentDownloads" value="4" />
+  <!-- 最大下载重试次数 -->
+  <add key="MaxDownloadRetries" value="2" />
+</appSettings>
+```
+
+### MD5文件格式
+程序使用JSON格式的MD5文件来管理文件版本：
+
+```json
+{
+  "version": "1.0.0",
+  "data": {
+    "program.exe": "5d41402abc4b2a76b9719d911017c592",
+    "lib/library.dll": "098f6bcd4621d373cade4e832627b4f6",
+    "config/settings.ini": "5e40d4c123456789abcdef1234567890"
+  }
+}
+```
+
+## 🔄 工作流程
+
+1. **启动检查**: 程序启动时清理旧的临时文件
+2. **下载MD5**: 从云存储下载最新的MD5文件
+3. **文件比较**: 对比本地文件与在线MD5，识别需要更新的文件
+4. **并发下载**: 使用多线程下载需要更新的文件
+5. **完整性验证**: 验证下载文件的MD5值
+6. **文件替换**: 将新文件移动到目标位置
+7. **7z解压**: 自动检测并解压tim.7z文件
+8. **权限设置**: 为解压的exe文件设置管理员运行权限
+9. **清理完成**: 清理临时文件，显示完成状态
+
+## 🎯 使用场景
+
+- **软件自动更新**: 为桌面应用程序提供自动更新功能
+- **文件同步**: 在不同设备间同步文件和配置
+- **批量部署**: 企业环境下的软件批量部署和更新
+- **游戏更新**: 游戏客户端的增量更新和补丁分发
+
+## 🛠️ 开发特性
+
+### 网络优化
+- **静态HttpClient**: 避免套接字耗尽问题
+- **连接池复用**: 提高网络请求效率
+- **超时控制**: 合理的超时设置，避免长时间等待
+
+### 内存管理
+- **流式处理**: 大文件下载使用流式处理，控制内存占用
+- **及时释放**: 及时释放不再使用的资源
+- **临时文件**: 合理使用临时文件，避免内存溢出
+
+### 用户体验
+- **进度显示**: 实时显示下载进度和文件信息
+- **状态反馈**: 详细的状态信息和错误提示
+- **窗口定位**: 智能定位到屏幕右下角，不影响用户操作
+
+## 📈 性能特点
+
+- **高效下载**: 多线程并发下载，充分利用网络带宽
+- **智能重试**: 失败文件智能重试，提高成功率
+- **资源节约**: 仅下载变更文件，节省网络流量
+- **快速启动**: 优化的启动流程，快速进入工作状态
+
+## 🔒 安全性
+
+- **MD5验证**: 确保文件在传输过程中没有被篡改
+- **用户权限**: 在当前用户权限下操作，避免权限滥用
+- **临时目录**: 使用用户临时目录，避免权限问题
+- **异常处理**: 完善的异常处理，避免程序崩溃
+
+## 📝 版本历史
+
+### 最新版本特性
+- ✅ 添加7z自动解压功能
+- ✅ 支持解压后程序自动设置管理员权限
+- ✅ 优化多线程下载性能
+- ✅ 增强错误处理和重试机制
+- ✅ 改进用户界面和状态显示
+- ✅ 过滤 .db / .db3 数据库文件，避免占用导致失败
+- ✅ 更新列表或压缩包中出现 tim.dll 时，自动结束 tim.exe 后替换
+- ✅ 所有文件匹配与进程检测均采用大小写不敏感逻辑，避免大小写差异造成的更新失败
+- ✅ 精简 Status_Box 文本，并在失败时弹窗展示核心错误信息
+
+## 🤝 技术支持
+
+如需技术支持或报告问题，请联系开发团队。
+
+---
+
+**注意**: 本程序需要网络连接以下载更新文件。首次运行时可能需要较长时间来下载必要的文件。

packages.config

@@ -1,18 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="7z" version="15.8.0" targetFramework="net472" />
   <package id="Aliyun.OSS.SDK" version="2.14.1" targetFramework="net472" />
   <package id="Costura.Fody" version="6.0.0" targetFramework="net472" developmentDependency="true" />
   <package id="DnsClient" version="1.8.0" targetFramework="net472" />
-  <package id="Fody" version="6.8.2" targetFramework="net472" developmentDependency="true" />
+  <package id="Fody" version="6.9.2" targetFramework="net472" developmentDependency="true" />
   <package id="LanzouCloudSolve" version="1.0.3" targetFramework="net472" />
-  <package id="Microsoft.Bcl.AsyncInterfaces" version="8.0.0" targetFramework="net472" />
+  <package id="Microsoft.Bcl.AsyncInterfaces" version="9.0.6" targetFramework="net472" />
   <package id="Newtonsoft.Json" version="13.0.3" targetFramework="net472" />
+  <package id="SevenZipExtractor" version="1.0.19" targetFramework="net472" />
+  <package id="SevenZipSharp" version="0.64" targetFramework="net472" />
+  <package id="SevenZipSharp.Interop" version="19.1.0" targetFramework="net472" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net472" />
+  <package id="System.IO.Pipelines" version="9.0.6" targetFramework="net472" />
   <package id="System.Memory" version="4.5.5" targetFramework="net472" />
   <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net472" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="6.0.0" targetFramework="net472" />
-  <package id="System.Text.Encodings.Web" version="8.0.0" targetFramework="net472" />
-  <package id="System.Text.Json" version="8.0.1" targetFramework="net472" />
+  <package id="System.Text.Encodings.Web" version="9.0.6" targetFramework="net472" />
+  <package id="System.Text.Json" version="9.0.6" targetFramework="net472" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net472" />
   <package id="System.ValueTuple" version="4.5.0" targetFramework="net472" />
 </packages>