学步园

1、直接在控件（窗体）中定义 

<UserControl.Resources> 
<SolidColorBrush x:Key="TextBoxBackgroundColor" Color="LemonChiffon"/> 
</UserControl.Resources> 

<TextBox Background="{StaticResource TextBoxBackgroundColor}"/> 

2、在资源字典中直接定义

<ResourceDictionary 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> 

<SolidColorBrush x:Key="TextBoxBackgroundColor" Color="LemonChiffon"/> 
</ResourceDictionary> 

3、在资源字典中嵌套定义其他资源文件

<Application.Resources> 
<ResourceDictionary> 
<ResourceDictionary.MergedDictionaries> 
<ResourceDictionary Source="Assets/Styles.xaml"/> 
</ResourceDictionary.MergedDictionaries> 
</ResourceDictionary> 
</Application.Resources> 

优先级待整理后写上