WPF-Button使用三级状态显示

<!--按钮三级状态-->
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver"
                                     Value="True">
                                <Setter Property="Background"
                                        Value="Green"
                                        TargetName="bor" />
                            </Trigger>
                            <Trigger Property="IsPressed"
                                     Value="True">
                                <Setter Property="Background"
                                        Value="#FFD2D7D3"
                                        TargetName="bor" />
                            </Trigger>
                        </ControlTemplate.Triggers>