diff --git a/DM_Weight/App.config b/DM_Weight/App.config
index beedc98..1533a73 100644
--- a/DM_Weight/App.config
+++ b/DM_Weight/App.config
@@ -52,7 +52,7 @@
 		<!-- 抽屉串口使用的协议232或者485 -->
 		<add key="DrawerProtocol" value="485" />
 		<!-- 抽屉串口的串口号 -->
-		<add key="DrawerPortPath" value="COM1" />
+		<add key="DrawerPortPath" value="COM3" />
 		<!-- can总线串口的串口号 -->
 		<add key="CanBusPortPath" value="COM17" />
 		<!-- 条码枪串口的串口号 -->
diff --git a/DM_Weight/Views/Dialog/ReturnEmptyDialog.xaml b/DM_Weight/Views/Dialog/ReturnEmptyDialog.xaml
index 3a5f8f8..12fb3fc 100644
--- a/DM_Weight/Views/Dialog/ReturnEmptyDialog.xaml
+++ b/DM_Weight/Views/Dialog/ReturnEmptyDialog.xaml
@@ -124,7 +124,7 @@
             <ListView
                 Grid.Row="2" ScrollViewer.VerticalScrollBarVisibility="Auto"
                 ItemsSource="{Binding MachineRecords}"
-                SelectedItem="{Binding _MachineRecord}"
+                SelectedItem="{Binding _MachineRecord}" SelectionMode="Multiple" IsSynchronizedWithCurrentItem="True"
                 materialDesign:ListViewAssist.HeaderRowBackground="#31ccec"
                 materialDesign:DataGridAssist.ColumnHeaderPadding="10"
                 materialDesign:ListViewAssist.ListViewItemPadding="13">
@@ -132,6 +132,10 @@
                     <Style TargetType="{x:Type GridViewColumnHeader}" BasedOn="{StaticResource {x:Type GridViewColumnHeader}}">
                         <Setter Property="Foreground" Value="White" />
                     </Style>
+                    <Style TargetType="ScrollViewer">
+                        <Setter Property="HorizontalScrollBarVisibility" Value="Visible"/>
+                        <Setter Property="VerticalScrollBarVisibility" Value="Visible"/>
+                    </Style>
                 </ListView.Resources>
 
                 <i:Interaction.Triggers>