学习wpf播放视频音频的两种不同方法

<Window x:Class="WpfApplication1.Window1"
    xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300">
    <Grid>
          <Button Content="播放歌曲" Height="23" Click="button1_Click" HorizontalAlignment="Left" Margin="12,12,0,0" VerticalAlignment="Top" Name="button1"<Window x:Class="WpfApp