Visual Studio：是什么以及如何开发移动应用程序

<!-- MainPage.xaml — .NET MAUI UI —>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="MyApp.MainPage">
    <VerticalStackLayout Spacing="12" Padding="16">
        <Label Text="Hello, .NET MAUI!"
               FontSize="24"
               HorizontalOptions="Center" />
        <Button Text="Load Data"
                Clicked="OnLoadClicked"
                BackgroundColor="#512BD4" />
        <CollectionView x:Name="ItemsList" />
    </VerticalStackLayout>
</ContentPage>

// MainPage.xaml.cs — 使用DI的代码隐藏
public partial class MainPage : ContentPage
{
    private readonly IApiService _api;
    
    public MainPage(IApiService api)
    {
        InitializeComponent();
        _api = api;
    }
    
    private async void OnLoadClicked(object sender, EventArgs e)
    {
        var items = await _api.GetItemsAsync();
        ItemsList.ItemsSource = items;
    }
}