只需将图像包裹在边框控件中

Simply wrap the Image in a Border control

<Border BorderThickness="1">
    <Image Name="imgPic1"
           Width="100"
           Height="75"
           Stretch="Fill"
           VerticalAlignment="Top" />
</Border>

如果您不想在每个图像周围都这样做，您还可以提供一种应用于图像的样式

You could also provide a style you apply to images that does this if you don't want to do it around every image

来自 Pax 添加的答案和评论的最终解决方案:

Final solution from answer and comments added by Pax:

<Border BorderThickness="1"
        BorderBrush="#FF000000"
        VerticalAlignment="Top">
    <Image Name="imgPic1"
           Width="100"
           Height="75"
           Stretch="Fill"
           VerticalAlignment="Top"/>
</Border>