diff --git a/StormChatWPF/Chat.cs b/StormChatWPF/Chat.cs
index e67a055..0e54842 100644
--- a/StormChatWPF/Chat.cs
+++ b/StormChatWPF/Chat.cs
@@ -12,79 +12,76 @@ namespace StormChatWPF
     class Chat
     {
         public static List<User> ContactsList;//联系人集合
-        public  static  Chat chat = new Chat();
+        public static Chat chat=new Chat();
         private Chat()
         {
-            StormClient.OnLoginDone += HaveLogin;
-            StormClient.OnGetUserListDone += GetContactsList;
-            StormClient.OnMessage +=ReciveMessage;
+            StormClient.OnLoginDone += OnHaveLogin;
+            StormClient.OnGetUserListDone += OnGetContactsList;
+            StormClient.OnMessage +=OnMessage;
         }
-
-
-        private User ChatNow;
-        internal User SetContact
-        {
-            get
-            {
-                return ChatNow;
-            }
-            set
-            {
-                ChatNow = value;
-            }
-        }//设置当前联系人对象
-        internal static void GetContactsList(ResultHead head, User[] users)
+        internal static User CurrentContact { get; set; }//设置当前联系人对象
+        /// <summary>
+        /// 获取联系人列表(完成后打开主窗体)
+        /// </summary>
+        private void OnGetContactsList(ResultHead head, User[] users)
         {
             if (head.Error != "")
             {
                 MessageBox.Show("无法获取联系人列表");
-            }
-            else
-                ContactsList =new List<User>( users);
                 return;
-        }//获取联系人列表
-        internal void Log(string user,string password)
+            }
+            App.Current.Dispatcher.Invoke(
+                (Action)delegate ()
+                {
+                    ContactsList = new List<User>(users);
+                    MainWindow mainWindow = new MainWindow();
+                    mainWindow.Show();
+                    LogWindow.Instence.Close();
+                });
+        }
+        private  void OnHaveLogin(ResultHead head, User user)
+        {
+                    if (head.Error == "")
+                    {
+                        User.Me = user;
+                        StormClient.QueueGetUserList();                       
+                    }
+                    else
+                    {
+                        MessageBox.Show("请核对账号密码！");
+                    }
+        }//登录完成
+        private  void OnMessage(Message message)
+        {
+            if (MainWindow.Instence != null)
+            {
+                MainWindow.Instence.ShowMessage(message);
+            }
+        }//接受到新消息
+
+        internal void SendMessage(string text,User target)
+        {
+            Message msg = new Message(text,target);
+            Action<ResultHead> f = delegate (ResultHead head)
+           {
+               MainWindow.Instence.ShowMessage(msg);
+           };
+            StormClient.QueueSendMessage(msg,f);
+        }//发送消息
+        internal static void Log(string user, string password)
         {
             if (StormClient.Initialize())
             {
-                StormClient.QueueLogin(user,password);
+                if (!StormClient.QueueLogin(user, password))
+                {
+                    MessageBox.Show("登录失败");
+                }
             }
             else
             {
                 MessageBox.Show("连接服务器失败！");
             }
         }//登录
-        internal  static void HaveLogin(ResultHead head, User user)
-        {
-            App.Current.Dispatcher.Invoke(
-                (Action)delegate ()
-                {
-                    if (head.Error == "")
-                    {
-                        User.Me = user;
-                        MainWindow userWindow = new MainWindow();
-                        userWindow.Show();
-                        LogWindow.Instence.Close();
-                    }
-                    else
-                    {
-                        MessageBox.Show("登录失败！");
-                    }
-                });
-        }//登录完成
-        internal static void  ReciveMessage(Message message)
-        {
-            LogWindow.Instence.ShowMessage(message);
-        }//接受到新消息的时候
-        internal static void SendMessage(string text,User target)
-        {
-            //    Message msg = new Message(text);
-            //    Action<BaseHead> f  = delegate(BaseHead head) 
-            //    {
-
-            //    };
-            //    StormClient.QueueSendMessage(msg, target, f);
-            //    LogWindow.Instence.ShowUserMessage();
-        }
+        
     }
 }
diff --git a/StormChatWPF/LogWindow.xaml b/StormChatWPF/LogWindow.xaml
index efe8c9a..12d5f90 100644
--- a/StormChatWPF/LogWindow.xaml
+++ b/StormChatWPF/LogWindow.xaml
@@ -5,13 +5,25 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:StormChatWPF"
         mc:Ignorable="d"
-        Title="MainWindow" Height="450" Width="800">
-	<Grid Margin="0,0,-0.4,-1">
-		<Image x:Name="LogImage" Margin="0,0,0,181" Source="/RESOURCES/logFormBackground.jpg" Stretch="None"/>
-		<Button x:Name="Login_button" Content="LogIn" Margin="361,370,361,32" RenderTransformOrigin="0.664,1.51" Click="Login_button_Click"/>
-		<TextBox x:Name="AccountBox" Margin="346,263,340,0" TextWrapping="Wrap" Text="201701110203" Height="15" VerticalAlignment="Top" />
-		<PasswordBox x:Name="passwordBox" Margin="346,311,0,0" Password="1233211234567" RenderTransformOrigin="0.503,0.59" Height="18" VerticalAlignment="Top" HorizontalAlignment="Left" Width="109"/>
-
-
+        Title="StormChat" Height="450" Width="800"
+		Icon="UI/闪电.png">
+	<Grid Height="418" VerticalAlignment="Stretch" Margin="2,1,1,1">
+		<Grid.ColumnDefinitions>
+			<ColumnDefinition Width="200*"/>
+			<ColumnDefinition Width="200*"/>
+			<ColumnDefinition Width="200*"/>
+			<ColumnDefinition Width="200*"/>
+		</Grid.ColumnDefinitions>
+		<Grid.RowDefinitions>
+			<RowDefinition Height="150*"/>
+			<RowDefinition Height="150*"/>
+			<RowDefinition Height="150*"/>
+		</Grid.RowDefinitions>
+		<Image x:Name="LogBackground"  Grid.ColumnSpan="4" Height="268" Margin="10,10,10,0" Grid.RowSpan="2" VerticalAlignment="Top" Source="UI/登录界面底.png"/>
+		<Button x:Name="Login_button" Content="LogIn" Click="Login_button_Click" Grid.ColumnSpan="2" Grid.Column="1" Grid.Row="2" Margin="160.6,69.6,160.6,44.6" Width="70" Height="25" HorizontalAlignment="Center"/>
+		<TextBox x:Name="AccountBox" TextWrapping="Wrap" Text="201701110203" Grid.Row="2" TextAlignment="Left" Margin="137.6,4.6,137.6,112.6" Grid.Column="1" Grid.ColumnSpan="2" Height="22" Width="122" HorizontalAlignment="Center" BorderThickness="0,0,0,1" VerticalAlignment="Top" />
+		<PasswordBox x:Name="passwordBox" Password="1233211234567" Margin="135,35,135,0" Grid.Column="1" Grid.Row="2" VerticalAlignment="Top" Grid.ColumnSpan="2" Height="22" Width="122" HorizontalAlignment="Center" BorderThickness="0,0,0,1" HorizontalContentAlignment="Left"/>
+		<Label x:Name="Account" Content="Account:" Grid.Column="1" Margin="0,138.8,70.2,0" Grid.Row="1" VerticalAlignment="Top" RenderTransformOrigin="0.415,0.379" Height="24" FontFamily="Comic Sans MS" FontStyle="Italic" Grid.RowSpan="2" HorizontalContentAlignment="Center" HorizontalAlignment="Right" Width="60"/>
+		<Label x:Name="Password" Content="Password:" Grid.Column="1" Margin="0,31.6,65.2,0" Grid.Row="2" VerticalAlignment="Top" FontFamily="Comic Sans MS" FontStyle="Italic" Height="24" HorizontalContentAlignment="Center" HorizontalAlignment="Right" Width="70"/>
 	</Grid>
 </Window>
diff --git a/StormChatWPF/LogWindow.xaml.cs b/StormChatWPF/LogWindow.xaml.cs
index 924a07b..be1d7ae 100644
--- a/StormChatWPF/LogWindow.xaml.cs
+++ b/StormChatWPF/LogWindow.xaml.cs
@@ -29,14 +29,9 @@ namespace StormChatWPF
         }
         private void Login_button_Click(object sender, RoutedEventArgs e)
         {
-            Chat.chat.Log(AccountBox.Text,passwordBox.Password);
+            Chat.Log(AccountBox.Text,passwordBox.Password);
         }
-        internal void ShowMessage(Message message)
-        {
+       
 
-        }//将收到的消息展现于UI界面
-        internal void ShowUserMessage()
-        {
-        }
     }
 }
diff --git a/StormChatWPF/MainWindow.xaml b/StormChatWPF/MainWindow.xaml
index 7f41ef2..74d527b 100644
--- a/StormChatWPF/MainWindow.xaml
+++ b/StormChatWPF/MainWindow.xaml
@@ -9,14 +9,24 @@
 		
 		>
 	<Grid>
-		<ListView x:Name="UsersList" HorizontalAlignment="Left" Width="201" Margin="0,64,0,10" IsEnabled="True" SelectionChanged="UsersList_SelectionChanged">
-			<ListView.View>
-				<GridView>
-					<GridViewColumn/>
-				</GridView>
-			</ListView.View>
-		</ListView>
-		<TextBox HorizontalAlignment="Left" Height="90" Margin="201,320,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="583" />
-		<Button Content="Button" HorizontalAlignment="Left" Margin="378,262,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click"/>
+		<Grid.RowDefinitions>
+			<RowDefinition Height="60*"/>
+			<RowDefinition Height="300*"/>
+			<RowDefinition Height="90*"/>
+		</Grid.RowDefinitions>
+		<Grid.ColumnDefinitions>
+			<ColumnDefinition Width="200*"/>
+			<ColumnDefinition Width="200*"/>
+			<ColumnDefinition Width="200*"/>
+			<ColumnDefinition Width="200*"/>
+		</Grid.ColumnDefinitions>
+		<ListView x:Name="UsersList" Margin="0,0,0,0" IsEnabled="True" SelectionChanged="UsersList_SelectionChanged" Grid.Row="1" Grid.RowSpan="2"/>
+		<TextBox x:Name="InputBox" Margin="0,0,0,0" TextWrapping="Wrap" Text="" Grid.Row="2" Grid.ColumnSpan="3" Grid.Column="1" />
+		<Button Content="Send" HorizontalAlignment="Right" Margin="0,0,0,0" VerticalAlignment="Bottom" Width="75" Click="Button_Click" Height="20" Grid.Row="2" Grid.Column="3"/>
+		<ScrollViewer Grid.ColumnSpan="3" Grid.Column="1" Margin="0,0,0,0" Grid.Row="1" >
+			<ScrollViewer.Content>
+				<StackPanel x:Name="OutBox" Margin="0,0,0,0" Grid.ColumnSpan="3" Grid.Column="1" Grid.Row="1" ScrollViewer.VerticalScrollBarVisibility="Hidden"/>
+			</ScrollViewer.Content>
+		</ScrollViewer>
 	</Grid>
 </Window>
diff --git a/StormChatWPF/MainWindow.xaml.cs b/StormChatWPF/MainWindow.xaml.cs
index 052fe07..b512576 100644
--- a/StormChatWPF/MainWindow.xaml.cs
+++ b/StormChatWPF/MainWindow.xaml.cs
@@ -1,4 +1,5 @@
-using System;
+using Interact;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -19,34 +20,87 @@ namespace StormChatWPF
     /// </summary>
     public partial class MainWindow : Window
     {
+        public static MainWindow Instence;
         public MainWindow()
         {
             InitializeComponent();
+            LoadContactsList();
+            Instence = this;
         }
-        private void AddUserList()
+        private void LoadContactsList()
         {
-            if (Chat.userlist.Any())
+            if (Chat.ContactsList.Any())
             {
-                foreach (var user in Chat.userlist)
+                foreach (var user in Chat.ContactsList)
                 {
-                    UsersList.Items.Add(user);
+                    UsersList.Items.Add(user.NickName);
                 }
             }
         }//向联系人列表listview中添加元素
 
-        private void UsersList_Selected(object sender, RoutedEventArgs e)
-        {
-
-        }
-
         private void UsersList_SelectionChanged(object sender, SelectionChangedEventArgs e)
         {
-
+            if (UsersList.SelectedItem != null)
+            {
+                Chat.CurrentContact = Chat.ContactsList[UsersList.SelectedIndex];
+            }
         }
 
         private void Button_Click(object sender, RoutedEventArgs e)
         {
-            AddUserList();
+            Chat.chat.SendMessage(InputBox.Text,Chat.CurrentContact);
+            InputBox.Text = "";
         }
+
+        internal void ShowMessage(Message message)
+        {
+            if (message.To == User.Me)
+            {
+                App.Current.Dispatcher.Invoke(
+                delegate ()
+                {
+                    TextBlock text = new TextBlock
+                    {
+                        MaxWidth = 400,
+                        MinWidth = 10,
+                        MinHeight = 30,
+                        Text = message.Text,
+                        TextWrapping = TextWrapping.Wrap,
+                        FontFamily = new FontFamily("Comic Sans MS"),
+                        HorizontalAlignment = HorizontalAlignment.Left
+                    };
+                    Label label = new Label
+                    {
+                        HorizontalAlignment = HorizontalAlignment.Left,
+                        Content = text
+                    };
+                    OutBox.Children.Add(label);
+                });
+            }//接受到的的消息
+            else
+            {
+                App.Current.Dispatcher.Invoke(
+                delegate ()
+                {
+                    
+                    TextBlock text = new TextBlock
+                    {
+                        MaxWidth = 400,
+                        MinWidth = 10,
+                        MinHeight = 30,
+                        Text = message.Text,
+                        TextWrapping = TextWrapping.Wrap,
+                        FontFamily = new FontFamily("Comic Sans MS"),
+                        HorizontalAlignment = HorizontalAlignment.Right
+                    };
+                    Label label = new Label
+                    {
+                        HorizontalAlignment=HorizontalAlignment.Right,
+                        Content=text
+                    };
+                    OutBox.Children.Add(label);
+                });
+            }//发送的的消息
+        }//将消息展现于UI界面
     }
 }
diff --git a/StormChatWPF/ScrollViewer.cs b/StormChatWPF/ScrollViewer.cs
new file mode 100644
index 0000000..3ff0a3d
--- /dev/null
+++ b/StormChatWPF/ScrollViewer.cs
@@ -0,0 +1,64 @@
+using System;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace StormChatWPF
+{
+    public class ScrollViewerExtensions
+    {
+        public static readonly DependencyProperty AlwaysScrollToEndProperty = DependencyProperty.RegisterAttached("AlwaysScrollToEnd", typeof(bool), typeof(ScrollViewerExtensions), new PropertyMetadata(false, AlwaysScrollToEndChanged));
+        private static bool _autoScroll;
+
+
+        private static void AlwaysScrollToEndChanged(object sender, DependencyPropertyChangedEventArgs e)
+        {
+            ScrollViewer scroll = sender as ScrollViewer;
+            if (scroll != null)
+            {
+                bool alwaysScrollToEnd = (e.NewValue != null) && (bool)e.NewValue;
+                if (alwaysScrollToEnd)
+                {
+                    scroll.ScrollToEnd();
+                    scroll.ScrollChanged += ScrollChanged;
+                    // scroll.SizeChanged += Scroll_SizeChanged;
+                }
+                else { scroll.ScrollChanged -= ScrollChanged; /*scroll.ScrollChanged -= ScrollChanged; */}
+            }
+            else { throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances."); }
+        }
+
+
+        //private static void Scroll_SizeChanged(object sender, SizeChangedEventArgs e)
+        //{
+        //    ScrollViewer scroll = sender as ScrollViewer;
+        //    if (scroll == null) { throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances."); }
+        //    double d = scroll.ActualHeight + scroll.ViewportHeight + scroll.ExtentHeight;
+        //    scroll.ScrollToVerticalOffset(d);
+        //}
+
+
+        public static bool GetAlwaysScrollToEnd(ScrollViewer scroll)
+        {
+            if (scroll == null) { throw new ArgumentNullException("scroll"); }
+            return (bool)scroll.GetValue(AlwaysScrollToEndProperty);
+        }
+
+
+        public static void SetAlwaysScrollToEnd(ScrollViewer scroll, bool alwaysScrollToEnd)
+        {
+            if (scroll == null) { throw new ArgumentNullException("scroll"); }
+            scroll.SetValue(AlwaysScrollToEndProperty, alwaysScrollToEnd);
+        }
+
+
+        private static void ScrollChanged(object sender, ScrollChangedEventArgs e)
+        {
+            ScrollViewer scroll = sender as ScrollViewer;
+            if (scroll == null) { throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances."); }
+
+
+            if (e.ExtentHeightChange == 0) { _autoScroll = scroll.VerticalOffset == scroll.ScrollableHeight; }
+            if (_autoScroll && e.ExtentHeightChange != 0) { scroll.ScrollToVerticalOffset(scroll.ExtentHeight); }
+        }
+    }
+}
diff --git a/StormChatWPF/StormChatWPF.csproj b/StormChatWPF/StormChatWPF.csproj
index de5ebf1..ca29bee 100644
--- a/StormChatWPF/StormChatWPF.csproj
+++ b/StormChatWPF/StormChatWPF.csproj
@@ -63,6 +63,7 @@
     <Compile Include="MainWindow.xaml.cs">
       <DependentUpon>MainWindow.xaml</DependentUpon>
     </Compile>
+    <Compile Include="ScrollViewer.cs" />
     <Page Include="LogWindow.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
@@ -115,5 +116,11 @@
       <Name>Interact</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="UI\登录界面底.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="UI\闪电.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/StormChatWPF/UI/登录界面底.png b/StormChatWPF/UI/登录界面底.png
new file mode 100644
index 0000000..711b76e
Binary files /dev/null and b/StormChatWPF/UI/登录界面底.png differ
diff --git a/StormChatWPF/UI/闪电.png b/StormChatWPF/UI/闪电.png
new file mode 100644
index 0000000..7581c24
Binary files /dev/null and b/StormChatWPF/UI/闪电.png differ