mycode/BaiduSearch/BaiduSearchApp/MainWindow.xaml

<Window x:Class="BaiduSearchApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:BaiduSearchApp"
        xmlns:wv2="clr-namespace:Microsoft.Web.WebView2.Wpf;assembly=Microsoft.Web.WebView2.Wpf"
        mc:Ignorable="d"
        Title="百度智能搜索"
        Height="800"
        Width="1000"
        WindowStartupLocation="CenterScreen">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        
        <!-- 搜索区域 -->
        <Border Grid.Row="0" Margin="10" Background="#F0F0F0" CornerRadius="5">
            <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="Auto"/>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="Auto"/>
            </Grid.RowDefinitions>
            
            <Grid Grid.Row="0" Margin="5">
                <TextBox x:Name="txtApiKey" Margin="0" Padding="10" 
                         FontSize="14" VerticalAlignment="Center" 
                         TextChanged="TxtApiKey_TextChanged"/>
                <TextBlock Text="请输入百度千帆API Key" FontSize="14" 
                           Margin="15,0,0,0" VerticalAlignment="Center" 
                           Foreground="#999999" IsHitTestVisible="False"
                           x:Name="txtApiKeyPlaceholder"/> 
            </Grid>
            
            <Grid Grid.Row="1" Margin="5">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>
                
                <Grid Grid.Column="0">
                    <TextBox x:Name="txtSearchQuery" Padding="10" 
                             FontSize="16" VerticalAlignment="Center" 
                             KeyDown="TxtSearchQuery_KeyDown" 
                             TextChanged="TxtSearchQuery_TextChanged"/>
                    <TextBlock Text="请输入搜索内容" FontSize="16" 
                               Margin="15,0,0,0" VerticalAlignment="Center" 
                               Foreground="#999999" IsHitTestVisible="False"
                               x:Name="txtSearchQueryPlaceholder"/> 
                </Grid>
                
                <Button x:Name="btnSearch" Grid.Column="1" Margin="5,0,0,0" 
                        Content="搜索" FontSize="16" Padding="20,10" 
                        Click="BtnSearch_Click" Background="#2577FF" Foreground="White"/>
            </Grid>
        </Grid>
        </Border>
        
        <!-- 主内容区域 - 分为左右两栏 -->
        <Grid Grid.Row="1" Margin="10">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="5"/>
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>
            
            <!-- 左侧搜索结果区域 -->
            <Grid Grid.Column="0">
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="*"/>
                    <RowDefinition Height="Auto"/>
                </Grid.RowDefinitions>
                
                <TextBlock Grid.Row="0" x:Name="txtStatus" Margin="5" 
                           FontSize="14" Foreground="#666"/>
                
                <ListView Grid.Row="1" x:Name="lvSearchResults" Margin="5" MouseDoubleClick="LvSearchResults_MouseDoubleClick">
                    <ListView.ItemTemplate>
                        <DataTemplate>
                            <Border BorderBrush="#E0E0E0" BorderThickness="0,0,0,1" Padding="5">
                                <Grid>
                                    <Grid.RowDefinitions>
                                        <RowDefinition Height="Auto"/>
                                        <RowDefinition Height="Auto"/>
                                        <RowDefinition Height="Auto"/>
                                        <RowDefinition Height="Auto"/>
                                    </Grid.RowDefinitions>
                                    
                                    <TextBlock Grid.Row="0" Text="{Binding Title}" 
                                               FontSize="16" FontWeight="Bold" 
                                               Foreground="#1A0DAB" Margin="0,5,0,0"/>
                                    
                                    <TextBlock Grid.Row="1" Text="{Binding Url}" 
                                               FontSize="12" Foreground="#006621" 
                                               Margin="0,2,0,0"/>
                                    
                                    <TextBlock Grid.Row="2" Text="{Binding Date}" 
                                               FontSize="12" Foreground="#666" 
                                               Margin="0,2,0,0"/>
                                    
                                    <TextBlock Grid.Row="3" Text="{Binding Content}" 
                                               FontSize="14" Foreground="#333" 
                                               Margin="0,5,0,10" 
                                               TextWrapping="Wrap"/>
                                </Grid>
                            </Border>
                        </DataTemplate>
                    </ListView.ItemTemplate>
                </ListView>
                
                <!-- 翻页控件 -->
                <StackPanel Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Center" Margin="5">
                    <Button x:Name="btnPrevPage" Content="上一页" Margin="5" Click="BtnPrevPage_Click" IsEnabled="False"/>
                    <TextBlock x:Name="txtPageInfo" Margin="5" VerticalAlignment="Center" FontSize="14"/>
                    <Button x:Name="btnNextPage" Content="下一页" Margin="5" Click="BtnNextPage_Click" IsEnabled="False"/>
                </StackPanel>
            </Grid>
            
            <!-- 分割线 -->
            <GridSplitter Grid.Column="1" Background="#E0E0E0" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"/>
            
            <!-- 右侧内置浏览器区域 -->
            <Grid Grid.Column="2">
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="*"/>
                </Grid.RowDefinitions>
                
                <!-- 浏览器地址栏 -->
                <StackPanel Grid.Row="0" Orientation="Horizontal" Margin="5">
                    <Button x:Name="btnBack" Content="←" Margin="5" Click="BtnBack_Click" IsEnabled="False"/>
                    <Button x:Name="btnForward" Content="→" Margin="5" Click="BtnForward_Click" IsEnabled="False"/>
                    <Button x:Name="btnRefresh" Content="刷新" Margin="5" Click="BtnRefresh_Click"/>
                    <TextBox x:Name="txtBrowserUrl" Margin="5" VerticalAlignment="Center" FontSize="14" IsReadOnly="True"/>
                    <Button x:Name="btnGo" Content="前往" Margin="5" Click="BtnGo_Click"/>
                    <Button x:Name="btnCloseBrowser" Content="关闭" Margin="5" Click="BtnCloseBrowser_Click"/>
                </StackPanel>
                
                <!-- WebView2 控件 -->
                <wv2:WebView2 x:Name="webView" Grid.Row="1" Margin="5" />
            </Grid>
        </Grid>
    </Grid>
</Window>