退出bat脚本的cmd窗口

Form1.cs

@@ -197,9 +197,9 @@ namespace CheckDownload
                     // 无需更新时清理临时文件夹
                     CleanupTempDirectory();
                     
-                    // 显示更新完成并等待3秒
+                    // 显示更新完成并等待2秒
                     UpdateStatus("更新完成");
-                    await Task.Delay(3000);
+                    await Task.Delay(2000);
                     this.Close();
                     return;
                 }
@@ -913,15 +913,16 @@ 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",
-                    Arguments = $"/c start \"\" /min \"{batchFilePath}\"",
+                    Arguments = $"/c \"{batchFilePath}\"",
                     CreateNoWindow = true,
-                    UseShellExecute = true,
+                    UseShellExecute = false,
                     WindowStyle = ProcessWindowStyle.Hidden
                 };
                 Process.Start(startInfo);