资源
静态资源和动态资源
StaticResource //静态资源，初始设置的样式
DynamicResource //动态资源，会随着xaml.cs代码的改变而变
资源字典
app.xaml中添加
<Application.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="ButtonStyle.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Application.Resources>
/wa6