如何将平台上的参数添加到Xamarin标签中？

<Label Text="这是一个静态标签" />

var label = new Label { Text = "这是一个静态标签" };

public class MyViewModel : INotifyPropertyChanged
{
    private string _dynamicText;
    public string DynamicText
    {
        get { return _dynamic://dynamicText; }
        set
        {
            if (_dynamicText != value)
            {
                _dynamicText = value;
                OnPropertyChanged(nameof(DynamicText));
            }
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="YourNamespace.MainPage">
    <ContentPage.BindingContext>
        <local:MyViewModel />
    </ContentPage.BindingContext>
    <StackLayout>
        <Label Text="{Binding DynamicText}" />
    </StackLayout>
</ContentPage>

var viewModel = new MyViewModel();
viewModel.DynamicText = "这是一个动态更新的标签";