using System.Windows; namespace _5_WPF样式和行为_1样式基础; /// /// Interaction logic for MainWindow.xaml /// public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void MyButton_OnClick(object sender, RoutedEventArgs e) { var tryFindResource = (Style)BunnyButton.TryFindResource("BigFontButtonStyle"); Console.WriteLine(tryFindResource); if (tryFindResource != null) MyButton.Style = tryFindResource; } }