wpf学习笔记--页面导航

//导航之页面
        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            NavigationService.Navigate(new Uri("Page2.xaml", UriKind.RelativeOrAbsolute));
        }
        //页面前进
        private void Button_Click_2(object sender, RoutedEventArgs e)
        {
            NavigationService.GoForward();
        }
        //页面后退
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            NavigationService.GoBack();
        }