diff --git a/SocketExample/TCPWindowV2.xaml b/SocketExample/TCPWindowV2.xaml
index f5426a7..ad78705 100644
--- a/SocketExample/TCPWindowV2.xaml
+++ b/SocketExample/TCPWindowV2.xaml
@@ -6,7 +6,7 @@
         xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
         xmlns:local="clr-namespace:SocketExample"
         mc:Ignorable="d"
-        Title="RFID读写器多终端监控软件v1.02" Height="450" Width="800">
+        Title="RFID读写器多终端监控软件v1.03" Height="450" Width="800">
 
     <Window.Resources>
         <Style x:Key="SocketButton" TargetType="Button" BasedOn="{StaticResource BaseButtonStyle}">
@@ -113,9 +113,19 @@
                                         </Border>
 
                                         <StackPanel Orientation="Vertical" Margin="0,5,0,0" Width="130">
-                                    
                                             <TextBlock Text="请输入需要发送的内容："></TextBlock>
-                                            <TextBox TextWrapping="Wrap" x:Name="MessageTextBox_Client" Text="{Binding MessageText}"  Height="50" Margin="0,0,0,5"/>
+                                            <StackPanel Orientation="Horizontal">
+                                                <TextBox TextWrapping="Wrap" x:Name="MessageTextBox_Client" Text="{Binding MessageText}"  Height="50" Width="110" Margin="0,0,0,5"/>
+                                                <ComboBox x:Name="TextComboBox" Width="20" Height="20" ItemsSource="{Binding SendTextComboBox,Mode=TwoWay}">
+                                                    <i:Interaction.Triggers>
+                                                        <i:EventTrigger EventName="SelectionChanged">
+                                                        <i:InvokeCommandAction 
+                                                            Command="{Binding SendTextChangedCommand}"
+                                                            CommandParameter="{Binding ElementName=TextComboBox}"/> 
+                                                        </i:EventTrigger>
+                                                    </i:Interaction.Triggers>
+                                                </ComboBox>
+                                        </StackPanel>
                                             <Button Content="发送" Width="50" HorizontalAlignment="Center"  Command="{Binding _sendcomn}" Style="{StaticResource SocketButton}"/>
                                         </StackPanel>
                                 </StackPanel>
diff --git a/SocketExample/TCPWindowV2.xaml.cs b/SocketExample/TCPWindowV2.xaml.cs
index 699f35b..ab8cbf1 100644
--- a/SocketExample/TCPWindowV2.xaml.cs
+++ b/SocketExample/TCPWindowV2.xaml.cs
@@ -46,6 +46,7 @@ namespace SocketExample
             public string option;//命令选项
             public ICommand TextChangedCommand { get; }
             public ICommand SelectionChangedCommand { get; }
+            public ICommand SendTextChangedCommand { get; }
 
             public ICommand GPOSelectionChangedCommand { get; }
 
@@ -54,7 +55,8 @@ namespace SocketExample
             public string Text { get; set; }//客户端编号
             public string IPtext { get; set; }//IP文本框
             public string Porttext { get; set; }//端口文本框
-            public string MessageText { get; set; }//发送框
+            private string _messagetext;
+            public string MessageText { get => _messagetext; set { _messagetext = value; OnPropertyChanged(); } }//发送框
             private string _statecolour { get; set; }//状态指示灯
             public string StateColour { get => _statecolour; set { _statecolour = value; OnPropertyChanged(); } }
 
@@ -95,6 +97,7 @@ namespace SocketExample
 
             private int[] _portComboBox;
             private string[] _gpoComboBox;
+            private string[] _sendtextComboBox;//下拉框数据源
 
             public string Port1ReadText { get => _port1readtext; set { _port1readtext = value; OnPropertyChanged(); } }
             public string Port2ReadText { get => _port2readtext; set { _port2readtext = value; OnPropertyChanged(); } }
@@ -107,6 +110,7 @@ namespace SocketExample
             public string Port4WriteText { get => _port4writetext; set { _port4writetext = value; OnPropertyChanged(); } }
             public int[] PortComboBox { get => _portComboBox; set { _portComboBox = value; OnPropertyChanged(); } }
             public string[] GPOComboBox { get => _gpoComboBox;set { _gpoComboBox = value; OnPropertyChanged(); } }
+            public string[] SendTextComboBox { get => _sendtextComboBox; set { _sendtextComboBox = value; OnPropertyChanged(); } }
 
 
             private string _gpo1;
@@ -171,11 +175,14 @@ namespace SocketExample
                 getpowercomn = new LinkCommand(Button_GetPower);
                 SelectionChangedCommand = new RelayCommand<ComboBox>(ComboBox_SelectChanged);
                 GPOSelectionChangedCommand = new RelayCommand<ComboBox>(GPOComboBox_SelectChanged);
+                SendTextChangedCommand = new RelayCommand<ComboBox>(SendTextComboBox_SelectChanged);
                 TextChangedCommand = new RelayCommand<ScrollViewer>(TextBlock_SelectChanged);
+                
                 //页面初始化
                 int[] Powerdatasource = {5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33};
                 string[] GPOdatasource = {"高","低"};
-                
+                string[] SendTextdatasource = { "读取"};
+
                 MessageText = string.Empty;
                 IPtext = "192.168.0.7";//默认IP
                 Porttext = "20108";//默认端口
@@ -187,6 +194,7 @@ namespace SocketExample
                 EPCinfo = "###";
                 PortComboBox = Powerdatasource;
                 GPOComboBox = GPOdatasource;
+                SendTextComboBox = SendTextdatasource;
                 GPO1 = "低";
                 GPO2 = "低";
                 GPO3 = "低";
@@ -297,9 +305,9 @@ namespace SocketExample
                                             GPO4 = "低";
 
                                         if (GPIBinInfo.Substring(j, 1) == "1")
-                                            GPI4 = "高";
-                                        else
                                             GPI4 = "低";
+                                        else
+                                            GPI4 = "高";
                                         break;
                                     case 5:
                                         if (GPOBinInfo.Substring(j, 1) == "1")
@@ -308,9 +316,9 @@ namespace SocketExample
                                             GPO3 = "低";
 
                                         if (GPIBinInfo.Substring(j, 1) == "1")
-                                            GPI3 = "高";
-                                        else
                                             GPI3 = "低";
+                                        else
+                                            GPI3 = "高";
                                         break;
                                     case 6:
                                         if (GPOBinInfo.Substring(j, 1) == "1")
@@ -319,9 +327,9 @@ namespace SocketExample
                                             GPO2 = "低";
 
                                         if (GPIBinInfo.Substring(j, 1) == "1")
-                                            GPI2 = "高";
-                                        else
                                             GPI2 = "低";
+                                        else
+                                            GPI2 = "高";
                                         break;
                                     case 7:
                                         if (GPOBinInfo.Substring(j, 1) == "1")
@@ -330,9 +338,9 @@ namespace SocketExample
                                             GPO1 = "低";
 
                                         if (GPIBinInfo.Substring(j, 1) == "1")
-                                            GPI1 = "高";
-                                        else
                                             GPI1 = "低";
+                                        else
+                                            GPI1 = "高";
                                         break;
                                     default:
                                         break;
@@ -567,8 +575,15 @@ namespace SocketExample
 
             void Button_Read()
             {
-                byte[] data = strToToHexByte("AA 55 02 02 03 E8 EB 0D");//获取1000ms内标签信息
-                client.Send(data);
+                try
+                {
+                    byte[] data = strToToHexByte("AA 55 02 02 03 E8 EB 0D");//获取1000ms内标签信息
+                    client.Send(data);
+                }
+                catch (Exception ex) {
+                    Infotext += $"发送读取命令时出错: {ex.Message}\n";
+                }
+                
             }
 
             void Button_SetPower()
@@ -632,6 +647,7 @@ namespace SocketExample
                         client.Send(data);//发送原始数据
                         client.Send(strToToHexByte(message));//发送16进制数据
                     }
+                    MessageText = "";
                 }
                 catch (Exception ex)
                 {
@@ -743,6 +759,25 @@ namespace SocketExample
 
             }
 
+            void SendTextComboBox_SelectChanged(ComboBox sender)
+            {
+                string selcetion = sender.SelectedItem?.ToString();
+                try
+                {
+                    switch (selcetion)
+                    {
+                        case "读取":
+                            MessageText = "AA 55 02 02 03 E8 EB 0D";
+                            break;
+
+                    }
+                }
+                catch (Exception ex)
+                {
+                    Infotext += ex.Message;
+                }
+
+            }
             void SaveCommand()
             {
                 byte[] confirmdata1 = strToToHexByte("AA 55 05 5F ");//保存命令
@@ -802,6 +837,7 @@ namespace SocketExample
             this.Closing += TCPWindowV2_Closing;
         }
 
+        //结束所有线程，防止心跳线程冗余
         private void TCPWindowV2_Closing(object sender, CancelEventArgs e)
         {
             System.Environment.Exit(0);