修复

Client/Program.cs

@@ -1,6 +1,7 @@
 using ChatRoom.Utils;
 using Microsoft.Extensions.Logging;
 using System.CommandLine;
+using System.Net;
 using System.Net.Sockets;
 using System.Reflection;
 using System.Text;
@@ -46,7 +47,7 @@ private static async Task ChatMainAsync()
             ip = Console.ReadLine();
             try
             {
-                await client.ConnectAsync(ip, 19132);
+                await client.ConnectAsync(IPAddress.TryParse(ip, out IPAddress address) ? address : IPAddress.Loopback, 19132);
             }
             catch (SocketException ex)
             {
@@ -87,7 +88,7 @@ private static async Task ChatMainAsync()
                         client = new(SocketType.Stream, ProtocolType.Tcp);
                         try
                         {
-                            await client.ConnectAsync(ip, 19132);
+                            await client.ConnectAsync(IPAddress.TryParse(ip, out IPAddress address) ? address : IPAddress.Loopback, 19132);
                         }
                         catch (SocketException)
                         {

ClientUI/ChatBoxHeightConverter.cs

@@ -0,0 +1,22 @@
+using System.Globalization;
+using System.Windows.Data;
+
+namespace ChatRoom;
+
+class ChatBoxHeightConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        double result = (double)value - 102;
+        if (result < 0)
+        {
+            return 0;
+        }
+        return result;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}

ClientUI/ChatBoxWidthConverter.cs

@@ -0,0 +1,22 @@
+using System.Globalization;
+using System.Windows.Data;
+
+namespace ChatRoom;
+
+class ChatBoxWidthConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        double result = (double)value - 20;
+        if (result < 0)
+        {
+            return 0;
+        }
+        return result;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}

ClientUI/InputBoxWidthConverter.cs

@@ -0,0 +1,22 @@
+using System.Globalization;
+using System.Windows.Data;
+
+namespace ChatRoom;
+
+class InputBoxWidthConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        double result = (double)value - 125;
+        if (result < 0)
+        {
+            return 0;
+        }
+        return result;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}

ClientUI/MainWindow.xaml

@@ -1,20 +1,26 @@
-<Window x:Class="ChatRoom.MainWindow"
+<Window
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:ChatRoom" x:Class="ChatRoom.MainWindow"
         mc:Ignorable="d"
-        Title="聊天室" Height="450" Width="800" FontFamily="Segoe UI Emoji" SizeChanged="WindowSizeChanged">
+        Title="聊天室" Height="450" Width="800" FontFamily="Segoe UI Emoji">
+    <Window.Resources>
+        <local:ChatBoxHeightConverter x:Key="ChatBoxHeightConverter"/>
+        <local:ChatBoxWidthConverter x:Key="ChatBoxWidthConverter"/>
+        <local:InputBoxWidthConverter x:Key="InputBoxWidthConverter"/>
+    </Window.Resources>
     <Grid>
         <Grid x:Name="LoginGrid">
             <TextBox x:Name="IPBox" Height="24" Width="100" Margin="0,-35,0,0" HorizontalAlignment="Center" VerticalAlignment="Center"/>
             <Button Content="连接" Height="24" Width="50" Margin="0,35,0,0" Click="ConnectAsync" HorizontalAlignment="Center" VerticalAlignment="Center"/>
         </Grid>
         <Grid x:Name="RoomGrid" IsEnabled="False" Visibility="Hidden">
             <TextBox x:Name="NameBox" Height="24" Width="100" Margin="10,10,0,0" HorizontalAlignment="Left" VerticalAlignment="Top"/>
-            <TextBox x:Name="ChatBox" Height="310" Width="768" Margin="10,39,0,0" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Top" IsReadOnly="True" VerticalScrollBarVisibility="Auto"/>
-            <TextBox x:Name="InputBox" Height="48" Width="675" Margin="0,0,115,10" KeyDown="EnterButtonDown" TextWrapping="Wrap" HorizontalAlignment="Right" VerticalAlignment="Bottom"/>
+            <TextBox x:Name="ChatBox" Height="{Binding ActualHeight, Converter={StaticResource ChatBoxHeightConverter}, ElementName=RoomGrid, IsAsync=True, Mode=OneWay}" Width="{Binding ActualWidth, Converter={StaticResource ChatBoxWidthConverter}, ElementName=RoomGrid, IsAsync=True, Mode=OneWay}" Margin="10,39,0,0" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Top" IsReadOnly="True" VerticalScrollBarVisibility="Auto"/>
+            <TextBox x:Name="InputBox" Height="48" Margin="0,0,115,10" KeyDown="EnterButtonDown" TextWrapping="Wrap" HorizontalAlignment="Right" VerticalAlignment="Bottom" Width="{Binding ActualWidth, Converter={StaticResource InputBoxWidthConverter}, ElementName=RoomGrid, IsAsync=True, Mode=OneWay}"/>
             <Button x:Name="SendButton" Content="发送" Height="48" Width="100" Margin="0,0,10,10" Click="Send" HorizontalAlignment="Right" VerticalAlignment="Bottom"/>
         </Grid>
     </Grid>
-</Window>
+</Window>

ClientUI/MainWindow.xaml.cs

@@ -1,4 +1,5 @@
 using System.IO;
+using System.Net;
 using System.Net.Sockets;
 using System.Reflection;
 using System.Windows;
@@ -31,7 +32,7 @@ private async void ConnectAsync(object sender, RoutedEventArgs e)
         Client = new(SocketType.Stream, ProtocolType.Tcp);
         try
         {
-            await Client.ConnectAsync(ip, 19132);
+            await Client.ConnectAsync(IPAddress.TryParse(ip, out IPAddress address) ? address : IPAddress.Loopback, 19132);
         }
         catch (SocketException ex)
         {
@@ -76,7 +77,7 @@ await Dispatcher.InvokeAsync(() =>
                         Client = new(SocketType.Stream, ProtocolType.Tcp);
                         try
                         {
-                            await Client.ConnectAsync(ip, 19132);
+                            await Client.ConnectAsync(IPAddress.TryParse(ip, out IPAddress address) ? address : IPAddress.Loopback, 19132);
                             break;
                         }
                         catch (SocketException)
@@ -149,17 +150,4 @@ private void EnterButtonDown(object sender, KeyEventArgs e)
             Send(default, default);
         }
     }
-
-    private void WindowSizeChanged(object sender, SizeChangedEventArgs e)
-    {
-        if (e.WidthChanged)
-        {
-            ChatBox.Width = e.NewSize.Width - 36 < 0 ? 0 : e.NewSize.Width - 36;
-            InputBox.Width = e.NewSize.Width - 141 < 0 ? 0 : e.NewSize.Width - 141;
-        }
-        if (e.HeightChanged)
-        {
-            ChatBox.Height = e.NewSize.Height - 140 < 0 ? 0 : e.NewSize.Height - 140;
-        }
-    }
 }