一、代码
XML
<Window x:Class="学习.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:学习"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.Resources>
<Style x:Key="BaseButtonStytle" TargetType="Button"><!--创建一个按键的公用基础样式-->
<Setter Property="FontSize" Value="20"/><!--字体大小-->
<Setter Property="Foreground" Value="Black"/><!--字体颜色-->
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="LightBlue"/> <!--鼠标悬浮会变蓝色-->
</Trigger>
</Style.Triggers>
</Style>
<Style x:Key="ButtonStytle" TargetType="Button" BasedOn="{StaticResource BaseButtonStytle}"><!--继承共用基础样式的按键样式-->
<Setter Property="Background" Value="Green"/><!--按键背景为绿色-->
</Style>
</Window.Resources>
<Grid>
<StackPanel>
<Button Content="111" Style="{StaticResource ButtonStytle}" />
<Button Content="111" Style="{StaticResource ButtonStytle}" />
<Button Content="111" Style="{StaticResource ButtonStytle}" />
</StackPanel>
</Grid>
</Window>
二、结果
![](https://i-blog.csdnimg.cn/direct/a5e5c0077a1d48d18e4c3e819146aa30.png)