WPF-Style样式多样性

<Window x:Class="WpfApp1.Window6"
        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:WpfApp1"
        mc:Ignorable="d"
        Title="Window6" Height="623" Width="1300">
    <Window.Resources>
        <Style x:Key="LoginStyle" TargetType="Button">
            <Setter Property="Background" Value="Red">
            </Setter>
            <Setter Property="Width" Value="140"></Setter>
            <Setter Property="Height" Value="50" ></Setter>
        </Style>
        <Style x:Key="QuitStyle" TargetType="Button">
            <Setter Property="Background" Value="Green">
            </Setter>
            <Setter Property="Width" Value="140"></Setter>
            <Setter Property="Height" Value="50" ></Setter>
        </Style>
    </Window.Resources>
    <Grid>
        <StackPanel>
            <Button Style="{StaticResource LoginStyle}" Content="登录" ></Button>
            <Button Content="退出"  Style="{StaticResource QuitStyle}"></Button>
        </StackPanel>
    </Grid>
</Window>