diff --git a/MainWindow.xaml b/MainWindow.xaml
index b82bd17..db31c05 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -24,7 +24,6 @@
                 <MenuItem Header="_备份/还原" FontSize="16" Name="_SQLBAK" Click="SQLBAK" IsEnabled="False"/>
                 <Separator/>
                 <MenuItem Header="_软件设置" FontSize="16" Name="_SOFTWARE_SET" Click="SOFTWARE_SET" IsEnabled="False"/>
-                <MenuItem Header="_转换设置" FontSize="16" Name="_EX_SET" Click="EX_SET" IsEnabled="False"/>
                 <MenuItem Header="_打印设置" FontSize="16" Name="_PRINT_SET" Click="PRINT_SET" IsEnabled="False"/>
                 <MenuItem Header="_登录限制" FontSize="16" Name="_USER_log" IsEnabled="False"/>
             </MenuItem>
@@ -46,9 +45,13 @@
             </MenuItem>
             <MenuItem Header="_查询" FontSize="16" Focusable ="False">
                 <MenuItem Header="_领料单据" FontSize="16"/>
-                <MenuItem Header="_转换历史" FontSize="16" Name="_exchange" Click="EXCHANGE" IsEnabled="False"/>
                 <MenuItem Header="_统计" FontSize="16" Name="_statistics" IsEnabled="False"/>
             </MenuItem>
+            <MenuItem Header="_扩展" FontSize="16" Focusable ="False">
+                <MenuItem Header="_模式" FontSize="16"  Name="_WorkingMode" IsEnabled="False"/>
+                <MenuItem Header="_转换设置" FontSize="16" Name="_EX_SET" Click="EX_SET" IsEnabled="False"/>
+                <MenuItem Header="_转换历史" FontSize="16" Name="_exchange" Click="EXCHANGE" IsEnabled="False"/>
+            </MenuItem>
             <MenuItem Header="_帮助" FontSize="16" Focusable ="False">
                 <MenuItem Header="_帮助" FontSize="16" Click="HELP"/>
             </MenuItem>
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index ee01017..c0d791b 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -53,7 +53,15 @@ namespace formula_manage
             InitializeComponent();
             this.Closing += Window_Closing;   //添加窗口关闭事件
 
-            if (Boolean.Parse(Configini.IniReadvalue("SOFTWARE_SET", "L6"))) UserClass.TCPServer.Start();  //开启网路通讯
+            if (Boolean.Parse(Configini.IniReadvalue("SOFTWARE_SET", "L6")))
+            {
+                UserClass.TCPServer.Start();  //开启网路通讯
+                _WorkingMode.Header = "服务端";
+            }
+            else 
+            {
+                _WorkingMode.Header = "客户端";
+            }
 
             USER.Text = App.USER_Purview;
             RRODUCTdataTable.Columns.Add("ID", typeof(int));
diff --git a/UserClass/TCPServer.cs b/UserClass/TCPServer.cs
index 8de80b8..d555a2d 100644
--- a/UserClass/TCPServer.cs
+++ b/UserClass/TCPServer.cs
@@ -18,16 +18,15 @@ namespace formula_manage.UserClass
         //字典集合：存储IP和Socket的集合
         public static Dictionary<string, Socket> OnLineList = new Dictionary<string, Socket>();
 
-        DataTable IPdataTable = new DataTable();   //建立缓存
-                                                   //当前时间
-
+       
+       //当前时间
         private string CurrentTime
         {
             get { return DateTime.Now.ToString("HH:mm:ss") + Environment.NewLine; }
         }
 
         //编码格式  
-        public static Encoding econding = Encoding.Default;
+        public static Encoding econding = Encoding.UTF8;
 
         public static void Start()
         {
@@ -80,7 +79,7 @@ namespace formula_manage.UserClass
             while (true)
             {
                 //定义一个2M的缓冲区  
-                byte[] buffer = new byte[1024 * 1024 * 2];
+                byte[] buffer = new byte[1024 * 1024 * 10];
 
                 int length = -1;
                 try
@@ -94,12 +93,10 @@ namespace formula_manage.UserClass
                     string ip = clientSocket.RemoteEndPoint.ToString();
                     UserClass.LogGing.LogGingDATA("IP_Line = " + ip);
                     //   AddOnLine(ip, false);
-                    OnLineList.Remove(ip);
-
-                    break;
+                    OnLineList.Remove(ip);  //移除ip
+                    break;   //退出循环
                 }
 
-
                 if (length == 0)
                 {
                     //客户端下线了
@@ -108,11 +105,9 @@ namespace formula_manage.UserClass
                     UserClass.LogGing.LogGingDATA("IP_Line = " + ip);
                     //    AddOnLine(ip, false);
                     OnLineList.Remove(ip);
-
                     break;
                 }
-
-                if (length > 0)
+                else
                 {
                     infoR = econding.GetString(buffer, 0, length);
                     //ShowMessage(info);