如果我在宽度和高度为 10 像素的组内放置宽度和高度为“100%”的边框,则边框看起来大于 10 像素,为什么?
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/halo"
>
<s:Group width="10" height="10">
<s:Border width="100%" height="100%" borderColor="#FF0000"/>
</s:Group>
</s:Application>