原文:

先说明思路：一个故事版Storyboard，两个双精度动画帧DoubleAnimation。

一个一个执行的原理：控制动画开始时间（例如第一个动画用时2秒，第二个动画就第2秒起开始执行。）

XAML：

 

 后台代码：

　　　　 #region 创建故事版        //创建一个故事版        Storyboard storyboard = new Storyboard();        private void CreateStoryboard()        {            //定义动画1运行时间==动画2等待时间            TimeSpan ts = new TimeSpan(0, 0, 1);            #region 创建第一个动画            DoubleAnimation doubleAnimation = new DoubleAnimation();            //目标角度            doubleAnimation.To = 360;            //结束时间            doubleAnimation.Duration = new Duration(ts);            Storyboard.SetTarget(doubleAnimation, img_FanRotate);            Storyboard.SetTargetProperty(doubleAnimation, new PropertyPath("(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)"));            storyboard.Children.Add(doubleAnimation);            #endregion             #region 创建第二个动画            DoubleAnimation doubleAnimation2 = new DoubleAnimation();            //目标角度            doubleAnimation2.To = 360;            //设置等待时间            doubleAnimation2.BeginTime = ts;            //结束时间            doubleAnimation2.Duration = new Duration(new TimeSpan(0, 0, 1));            //故事版中设置目标            Storyboard.SetTarget(doubleAnimation2, img_FanRotate2);            //故事版中设置属性路径            Storyboard.SetTargetProperty(doubleAnimation2, new PropertyPath("(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)"));            //将动画添加至故事版末尾            storyboard.Children.Add(doubleAnimation2);            #endregion             //开始故事版            //storyboard.Begin();        }        #endregion

　　 #region 按钮        //开始        private void button3_Click(object sender, RoutedEventArgs e)        {            storyboard.Begin(img_FanRotate, true);            storyboard.Begin(img_FanRotate2, true);        }        //暂停        private void button_Click(object sender, RoutedEventArgs e)        {            storyboard.Pause(img_FanRotate);            storyboard.Pause(img_FanRotate2);        }        //继续        private void button1_Click(object sender, RoutedEventArgs e)        {            storyboard.Resume(img_FanRotate);            storyboard.Resume(img_FanRotate2);        }        //停止        private void button2_Click(object sender, RoutedEventArgs e)        {            storyboard.Stop(img_FanRotate);            storyboard.Stop(img_FanRotate2);        }        #endregion