diff --git a/lib/app_upgrade_simple.dart b/lib/app_upgrade_simple.dart
index c9bb277..352e245 100644
--- a/lib/app_upgrade_simple.dart
+++ b/lib/app_upgrade_simple.dart
@@ -1006,6 +1006,8 @@ mixin _UpgradeDialogLogic<T extends StatefulWidget> on State<T> {
                     context,
                     icon: Icons.file_download,
                     label: '新版体积',
+
+                    /// 格式化文件大小
                     value: UpgradeUtils.formatBytes(info.apkSize!),
                     colorScheme: colorScheme,
                   ),