|WPF| Checkbox Style.Trigger我没有写取消的Trigger，为什么点取消后他能恢复默认

Question

<Window x:Class="SRQC11_5_2.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Title="MainWindow" Height="350" Width="525">
     <Window.Resources>
         <Style TargetType="CheckBox">
             <Style.Triggers>
                 <Trigger Property="IsChecked" Value="true">
                     <Trigger.Setters>
                         <Setter Property="FontSize" Value="20"></Setter>
                         <Setter Property="Foreground" Value="Orange"></Setter>
                     </Trigger.Setters>
                 </Trigger>
             </Style.Triggers>
         </Style>
     </Window.Resources>
     <StackPanel>
         <CheckBox Content="悄悄的我走了" Margin="5"></CheckBox>
         <CheckBox Content="正如我悄悄的来" Margin="5"></CheckBox>
         <CheckBox Content="我挥一挥衣袖" Margin="5"></CheckBox>
         <CheckBox Content="不带走一片去彩" Margin="5"></CheckBox>
     </StackPanel>
 </Window>
这什么我没有写<Trigger Property="IsChecked" Value="false">的Trigger，为什么点取消后他能恢复默认

Answer 1

问题是我的Trigger的触发器当为True的时候已经将他进行改变了，但我没有写=False的Trigger啊。
也就是没有False的触发器对他的字段进行改变啊

Answer 2

当IsChecked值不为True时，相应Trigger的Setter失效

Answer 3

如果按上面说的：当IsChecked值不为True时，相应Trigger的Setter失效
那为什么我这个鼠标移开后按钮不会还原呢？<Window x:Class="SRQC11_5_5.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <Style TargetType="Button">
            <Style.Triggers>
                <EventTrigger RoutedEvent="MouseEnter">
                    <BeginStoryboard>
                        <Storyboard>
                            <DoubleAnimation To="150" Duration="0:0:0:1" Storyboard.TargetProperty="Width"></DoubleAnimation>
                            <DoubleAnimation To="150" Duration="0:0:0:1" Storyboard.TargetProperty="Height"></DoubleAnimation>
                        </Storyboard>
                    </BeginStoryboard>
                </EventTrigger>
            </Style.Triggers>
        </Style>
    </Window.Resources>
    <Canvas>
        <Button Width="40" Height="40" Content="40"/>
    </Canvas>
</Window>