WPF xaml中写代码

这才是XAML中写代码，不会的看如下，Easy! Easy! Easy!

```xaml

<Grid>
    <Button Click="Button_Click2">Read</Button>
    <x:Code>
        private void Button_Click2(object sender, RoutedEventArgs e)
        {
        MessageBox.Show(&quot;1234&quot;);
        }
    </x:Code>
</Grid>